Entity Central Index Key Amount before tax of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on financial instruments. Fair value of financial instruments. Document and entity information. Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Current Reporting Status Entity Current Reporting Status Entity Shell Company Entity Shell Company Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, Address Line Two Entity Address Address Line2 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] CURRENT ASSETS Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Short-term investments Short Term Investments Accounts receivable, less allowance for doubtful accounts of $1,435 and $1,392, respectively Accounts Receivable Net Current Deferred costs Deferred Costs Current Other current assets Other Assets Current Total current assets Assets Current PROPERTY AND EQUIPMENT, less accumulated depreciation of $46,412 and $41,175, respectively Property Plant And Equipment Net OPERATING LEASE RIGHT-OF-USE ASSETS Operating Lease Right Of Use Asset GOODWILL Goodwill INTANGIBLE ASSETS, net Finite Lived Intangible Assets Net OTHER ASSETS Other Assets Noncurrent [Abstract] Deferred costs Deferred Costs Deferred income tax asset Deferred Tax Assets Net Noncurrent Other assets Other Assets Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities And Stockholders Equity [Abstract] CURRENT LIABILITIES Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued compensation Employee Related Liabilities Current Accrued expenses Accrued Liabilities Current Deferred revenue Contract With Customer Liability Current Deferred rent Deferred Rent Credit Current Operating lease liabilities Operating Lease Liability Current Total current liabilities Liabilities Current OTHER LIABILITIES Other Liabilities Noncurrent [Abstract] Deferred revenue Contract With Customer Liability Noncurrent Deferred rent Deferred Rent Credit Noncurrent Operating lease liabilities Operating Lease Liability Noncurrent Deferred income tax liability Deferred Tax Liabilities Noncurrent Other non-current liabilities Other Liabilities Noncurrent Total liabilities Liabilities COMMITMENTS and CONTINGENCIES Commitments And Contingencies STOCKHOLDERS’ EQUITY Stockholders Equity [Abstract] Preferred stock, $0.001 par value; 5,000,000 shares authorized; 0 shares issued and outstanding Preferred Stock Value Common stock, $0.001 par value; 55,000,000 shares authorized; 17,971,845 and 17,757,628 shares issued; and 17,468,106 and 17,345,736 outstanding, respectively Common Stock Value Treasury stock, at cost; 503,739 and 411,892 shares, respectively Treasury Stock Common Value Additional paid-in capital Additional Paid In Capital Common Stock Retained earnings Retained Earnings Accumulated Deficit Accumulated other comprehensive loss Accumulated Other Comprehensive Income Loss Net Of Tax Total stockholders’ equity Stockholders Equity Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Allowance for doubtful accounts Allowance For Doubtful Accounts Receivable Current Accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Common stock, shares outstanding Common Stock Shares Outstanding Treasury stock, shares Treasury Stock Common Shares Income Statement [Abstract] Revenues Revenue From Contract With Customer Excluding Assessed Tax Cost of revenues Cost Of Revenue Gross profit Gross Profit Operating expenses Operating Expenses [Abstract] Sales and marketing Selling And Marketing Expense Research and development Research And Development Expense General and administrative General And Administrative Expense Amortization of intangible assets Amortization Of Intangible Assets Total operating expenses Operating Expenses Income from operations Operating Income Loss Other income (expense) Nonoperating Income Expense [Abstract] Interest income, net Interest Income Expense Net Other income (expense), net Other Nonoperating Income Expense Change in earn-out liability Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 Total other income, net Nonoperating Income Expense Income before income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax expense Income Tax Expense Benefit Net income Net Income Loss Other comprehensive income (expense) Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent [Abstract] Foreign currency translation adjustments Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax Unrealized gain on investments, net of tax of $37, $34, $67, and $47, respectively Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Reclassification of gain on investments into earnings, net of tax of ($29), ($45), ($60) and ($53), respectively Other Comprehensive Income Loss Reclassification Adjustment From A O C I For Sale Of Securities Net Of Tax Total other comprehensive income (expense) Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Comprehensive income Comprehensive Income Net Of Tax Net income per share Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Weighted average common shares used to compute net income per share Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Unrealized gain on investments, tax Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax Reclassification of gain on investments into earnings, tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I For Sale Of Securities Tax Stock issued during period shares restricted stock and stock options exercised. Stock issued during period value restricted stock and stock options exercised. Reclassification of gain (loss) on investments in to earnings net of tax. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Treasury Stock [Member] Treasury Stock [Member] Additional Paid-in Capital [Member] Additional Paid In Capital [Member] Retained Earnings (Accumulated Deficit) [Member] Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) [Member] Accumulated Other Comprehensive Income [Member] Statement [Line Items] Statement [Line Items] Beginning balance Beginning balance, shares Shares Outstanding Stock-based compensation Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Exercise of stock options and issuance of restricted stock Stock Issued During Period Value Restricted Stock And Stock Options Exercised Exercise of stock options and issuance of restricted stock, shares Stock Issued During Period Shares Restricted Stock And Stock Options Exercised Employee stock purchase plan Stock Issued During Period Value Employee Stock Purchase Plan Employee stock purchase plan, shares Stock Issued During Period Shares Employee Stock Purchase Plans Repurchases of common stock Treasury Stock Value Acquired Cost Method Repurchases of common stock, shares Treasury Stock Shares Acquired Settlement and subsequent return of shares Stock Repurchased And Retired During Period Value Settlement and subsequent return of shares, shares Stock Repurchased And Retired During Period Shares Net income Foreign currency translation adjustments Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Reclassification of gain on investments into earnings, net of tax Reclassification Of Gain Loss On Investments In To Earnings Net Of Tax Unrealized gain on investments, net of tax Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax Adoption of ASU 2018-02 New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Quantification Ending balance Ending balance, shares Increase decrease in operating leases. The cash outflow associated with the acquisition of business and intangible assets, net of the cash acquired from the purchase. Statement Of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided By Used In Operating Activities [Abstract] Reconciliation of net income to net cash provided by operating activities Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Deferred income taxes Deferred Income Tax Expense Benefit Change in earn-out liability Depreciation and amortization of property and equipment Depreciation Depletion And Amortization Provision for doubtful accounts Provision For Doubtful Accounts Stock-based compensation Share Based Compensation Other, net Other Noncash Income Expense Changes in assets and liabilities Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Deferred costs Increase Decrease In Deferred Charges Other current and non-current assets Increase Decrease In Other Operating Assets Accounts payable Increase Decrease In Accounts Payable Accrued compensation Increase Decrease In Employee Related Liabilities Accrued expenses Increase Decrease In Accrued Liabilities Deferred revenue Increase Decrease In Contract With Customer Liability Deferred rent Increase Decrease In Other Deferred Liability Operating leases Increase Decrease In Operating Leases Net cash provided by operating activities Net Cash Provided By Used In Operating Activities Cash flows from investing activities Net Cash Provided By Used In Investing Activities [Abstract] Purchases of property and equipment Payments To Acquire Property Plant And Equipment Purchases of investments Payments To Acquire Other Investments Maturities of investments Proceeds From Sale And Maturity Of Available For Sale Securities Acquisitions of businesses and intangible assets, net of cash acquired Payments To Acquire Businesses And Intangible Assets Net Of Cash Acquired Net cash used in investing activities Net Cash Provided By Used In Investing Activities Cash flows from financing activities Net Cash Provided By Used In Financing Activities [Abstract] Repurchases of common stock Payments For Repurchase Of Common Stock Net proceeds from exercise of options to purchase common stock Proceeds From Stock Options Exercised Net proceeds from employee stock purchase plan Proceeds From Stock Plans Net cash used in financing activities Net Cash Provided By Used In Financing Activities Effect of foreign currency exchange rate changes Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Net increase in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash and cash equivalents at beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Cash and cash equivalents at end of period Organization Consolidation And Presentation Of Financial Statements [Abstract] General Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Business Combinations [Abstract] Business Acquisitions Business Combination Disclosure [Text Block] Revenue From Contract With Customer [Abstract] Revenue Revenue From Contract With Customer [Text Block] Deferred costs. Deferred Costs [Abstract] Deferred Costs Deferred Costs Disclosure [Text Block] Disclosure Text Block Supplement [Abstract] Financial Instruments Financial Instruments Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets, net Goodwill And Intangible Assets Disclosure [Text Block] Other Assets [Abstract] Other Assets Other Assets Disclosure [Text Block] Leases [Abstract] Leases Leases Of Lessee Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Stock-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Net Income Per Share Earnings Per Share [Text Block] Subsequent Events [Abstract] Subsequent Event Subsequent Events [Text Block] Business description policy. Business Description Business Description Policy Policy [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Lease Policy Lessee Leases Policy [Text Block] Recently Adopted Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Accounting pronouncements not yet adopted. Accounting Pronouncements Not Yet Adopted Accounting Pronouncements Not Yet Adopted Policy [Text Block] Significant accounting policies. Significant Accounting Policies Significant Accounting Policies Policy [Text Block] Summary of Revenues by Revenue Stream Disaggregation Of Revenue Table [Text Block] Summary of Deferred Revenue Liability Relating to Set-Up Fees Contract With Customer Asset And Liability Table [Text Block] Deferred costs and amortization. Summary of Deferred Costs and Amortization of Deferred Costs Deferred Costs And Amortization Table [Text Block] Financial Instruments Owned At Fair Value [Abstract] Summary of Cash Equivalents and Short-term Investments Schedule Of Cash Cash Equivalents And Short Term Investments Table [Text Block] Summary of Financial Assets Measured at Fair Value on a Recurring Basis Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Schedule of Changes in Net Carrying Amount of Goodwill Schedule Of Goodwill [Text Block] Intangible Assets Schedule Of Finite Lived Intangible Assets Table [Text Block] Schedule of intangible assets amortization expense. Summary of amortization expense of intangible assets Schedule Of Intangible Assets Amortization Expense Table [Text Block] Estimated Annual Amortization Expense Related to Intangible Assets Subject to Amortization Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Summary of Changes in Net Amount of Capitalized Implementation Costs for Internal-use Software from Hosting Arrangements Schedule Of Other Assets Table [Text Block] Summary of non-cancellable operating leases, primarily for office space and certain equipment. Summary of Non-Cancellable Operating Leases, Primarily for Office Space and Certain Equipment Summary Of Non Cancellable Operating Leases Primarily For Office Space And Certain Equipment Table [Text Block] Components of Lease Expense Lease Cost Table [Text Block] Schedule of supplemental cash flow information related to leases. Schedule of Supplemental Cash Flow Information Related to Leases Schedule Of Supplemental Cash Flow Information Related To Leases Table [Text Block] Schedule of supplemental balance sheet information related to leases. Schedule of Supplemental Balance Sheet Information Related to Leases Schedule Of Supplemental Balance Sheet Information Related To Leases Table [Text Block] Schedule of Future Minimum Payments Under Operating Leases Lessee Operating Lease Liability Maturity Table [Text Block] Schedule of Future Minimum Payments Under Operating Leases Schedule Of Future Minimum Rental Payments For Operating Leases Table [Text Block] Award Type Award Type [Axis] Equity Award Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Restricted stock units and performance share units. Performance Share Units and Restricted Stock Units [Member] Restricted Stock Units And Performance Share Units [Member] Restricted Stock Award [Member] Restricted Stock [Member] Stock-Based Compensation Expense Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Stock Option Activity Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Weighted Average Grant Date Fair Value of Options Granted, Assumptions Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Performance Share Units and Restricted Stock Units and Restricted Stock Awards Schedule Of Sharebased Compensation Restricted Stock And Restricted Stock Units Activity Table [Text Block] Fair Value Estimation of Common Stock Using Black-Scholes Option Pricing Model, Assumptions Schedule Of Share Based Payment Award Employee Stock Purchase Plan Valuation Assumptions Table [Text Block] Components of Computation of Basic and Diluted Net Income Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Regulatory Assets [Abstract] Regulatory Assets [Abstract] Schedule of accounting policies. Schedule Of Accounting Policies [Table] Schedule Of Accounting Policies [Table] Schedule Of Accounting Policies [Table] Adjustments for New Accounting Pronouncements Adjustments For New Accounting Pronouncements [Axis] Type of Adoption Type Of Adoption [Member] ASU 2016-02 [Member] Accounting Standards Update201602 [Member] Schedule Of Accounting Policies [Line Items] Schedule Of Accounting Policies [Line Items] Operating leases, right of use assets Operating leases, lease liabilities Operating Lease Liability Schedule Of Business Acquisitions By Acquisition [Table] Schedule Of Business Acquisitions By Acquisition [Table] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] EDIAdmin. E D I Admin [Member] E D I Admin [Member] Contingent Consideration by Type Contingent Consideration By Type [Axis] Contingent Consideration Type Contingent Consideration Type [Domain] Contingent consideration liability. Contingent Consideration Liability [Member] Contingent Consideration Liability [Member] CovalentWorks. CovalentWorks [Member] Covalent Works [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Payments to acquire business Payments To Acquire Businesses Net Of Cash Acquired Maximum payout of contingent consideration Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High Fair value of contingent consideration Contingent Consideration Classified As Equity Fair Value Disclosure Other income Other Income Stock issued for acquisition Stock Issued During Period Value Acquisitions Stock issued for acquisition, Shares Stock Issued During Period Shares Acquisitions Net Regulatory Assets [Abstract] Revenue recognition. Revenue Recognition. Revenue Recognition [Table] Revenue Recognition [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Fulfillment. Fulfillment [Member] Fulfillment [Member] Analytics. Analytics [Member] Analytics [Member] Other. Other [Member] Other [Member] Contract with Customer, Duration Contract With Customer Duration [Axis] Contract with Customer, Duration Contract With Customer Duration [Domain] Recurring revenues. Recurring Revenues [Member] Recurring Revenues [Member] One time revenues. One-time Revenues [Member] One Time Revenues [Member] Revenue Recognition [Line Items] Revenue Recognition [Line Items] Customer contract cancellation period. Recurring revenues timing of billings earliest period description. Recurring revenues timing of billings latest period. Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Range Range [Axis] Range Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Analytics Solution [Member] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Customer contract cancellation period Customer Contract Cancellation Period Earliest timing of billings Recurring Revenues Timing Of Billings Earliest Period Description Latest timing of billings Recurring Revenues Timing Of Billings Latest Period Deferred revenue recognition period. Contract period for remaining performance obligations for contracts in which the optional exemption under ASC 606-10-50-14(a) was applied. Deferred revenue recognition period Deferred Revenue Recognition Period Contract period for remaining performance obligations for contracts in which the optional exemption under ASC 606-10-50-14(a) was applied Revenue Remaining Performance Obligation For Contracts Original Durations Estimated period for material rights present to customers. Set up fees recognized period. Estimated period for material rights present to customers Estimated Period For Material Rights Present To Customers Set up fees recognized period Set Up Fees Recognized Period Deferred revenue Invoiced set up fees. Deferred revenue amortized set up fees. Deferred Revenue [Abstract] Deferred Revenue Arrangement By Type [Table] Deferred Revenue Arrangement By Type [Table] Type of Arrangement and Non-arrangement Transactions Type Of Arrangement [Axis] Arrangements and Non-arrangement Transactions Arrangements And Nonarrangement Transactions [Member] Set up fees. Set-Up Fees [Member] Set Up Fees [Member] Deferred Revenue Arrangement [Line Items] Deferred Revenue Arrangement [Line Items] Balances, at beginning of period Contract With Customer Liability Invoiced set-up fees Deferred Revenue Invoiced Set Up Fees Amortized set-up fees Deferred Revenue Amortized Set Up Fees Balances, at end of period Current amount recognition period of set up fees. Long term amount recognition period of set up fees. Current amount recognition period of set up fees Current Amount Recognition Period Of Set Up Fees Long term amount recognition period of set up fees Long Term Amount Recognition Period Of Set Up Fees Maximum recognition period for miscellaneous one-time fee. Maximum recognition period for miscellaneous one-time fee Maximum Recognition Period For Miscellaneous One Time Fee Deferred commission expected amortization period. Deferred customer implementation costs expected amortization period. Deferred commission expected amortization period Deferred Commission Expected Amortization Period Deferred customer implementation costs expected amortization period Deferred Customer Implementation Costs Expected Amortization Period Deferred cost incurred set up fees. Deferred cost amortized set up fees. Balances, at beginning of period Deferred Costs Current And Noncurrent Incurred deferred costs Deferred Cost Incurred Set Up Fees Amortized deferred costs Deferred Cost Amortized Set Up Fees Balances, at end of period This item represents the cost of financial instruments, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. Investments Debt And Equity Securities [Abstract] Schedule of financial instruments. Schedule of financial instruments. Schedule Of Financial Instruments [Table] Schedule Of Financial Instruments [Table] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investment Type Categorization [Member] Money Market Funds [Member] Money Market Funds [Member] Certificate of Deposit [Member] Certificates Of Deposit [Member] Corporate Bonds [Member] Corporate Debt Securities [Member] Commercial Paper [Member] Commercial Paper [Member] U.S. Treasury Securities [Member] U S Treasury Securities [Member] Financial instruments. Financial Instruments [Member] Financial Instruments [Member] Schedule of Financial Instruments [Line Items] Schedule Of Financial Instruments [Line Items] Amortized Cost Financial Instrument Amortized Cost Basis Unrealized Gains (Losses) Financial Instrument Gross Unrealized Gain Loss Before Tax Fair Value Financial Instruments Fair Value Cash And Cash Equivalents [Abstract] Fair Value, by Balance Sheet Grouping [Table] Fair Value By Balance Sheet Grouping [Table] Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level 3 [Member] Fair Value Inputs Level3 [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Measurement Frequency [Axis] Fair Value By Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value Measurements Recurring [Member] Level 1 [Member] Fair Value Inputs Level1 [Member] Level 2 [Member] Fair Value Inputs Level2 [Member] Assets fair value Assets Fair Value Disclosure Liabilities fair value Liabilities Fair Value Disclosure Balances, January 1 Goodwill acquired during the period Goodwill Acquired During Period Foreign currency translation adjustments Goodwill Foreign Currency Translation Gain Loss Balances, June 30 Schedule of Finite Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] Finite-Lived Intangible Assets [Line Items] Finite Lived Intangible Assets [Line Items] Intangible assets useful life Finite Lived Intangible Asset Useful Life Finite Lived Intangible Assets by Major Class [Axis] Finite Lived Intangible Assets By Major Class [Axis] Finite Lived Intangible Assets, Major Class Name [Domain] Finite Lived Intangible Assets Major Class Name [Domain] Subscriber Relationships [Member] Customer Relationships [Member] Non-competition Agreements [Member] Noncompete Agreements [Member] Includes, but is not limited to, purchased developed software, developed technology, trademarks and tradenames. Technology and Other [Member] Technology And Other [Member] Carrying Amount Finite Lived Intangible Assets Gross Accumulated Amortization Finite Lived Intangible Assets Accumulated Amortization Foreign Currency Translation Finite Lived Intangible Assets Foreign Currency Translation Gain Loss Net Remainder of 2019 Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year 2020 Finite Lived Intangible Assets Amortization Expense Year Two 2021 Finite Lived Intangible Assets Amortization Expense Year Three 2022 Finite Lived Intangible Assets Amortization Expense Year Four 2023 Finite Lived Intangible Assets Amortization Expense Year Five Thereafter Finite Lived Intangible Assets Amortization Expense After Year Five Net Capitalized Computer Software Net [Abstract] Balances, January 1 Capitalized Computer Software Net Capitalized implementation fees Capitalized Computer Software Additions Amortization of implementation fees Capitalized Computer Software Amortization1 Balances, June 30 Capitalized Computer Software Gross Impairment losses on capitalized implementation costs Capitalized Computer Software Impairments1 Lessee Lease Description [Table] Lessee Lease Description [Table] Lease Arrangement, Type Lease Arrangement Type [Axis] Lease Arrangement, Type Lease Arrangement Type [Domain] Other leases. Other Leases [Member] Other Leases [Member] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] Minneapolis, MN Lease [Member] MINNESOTA Little Falls, NJ Lease [Member] NEW JERSEY Lessee Lease Description [Line Items] Lessee Lease Description [Line Items] Remaining Term (years) Lessee Operating Lease Term Of Contract Right-of-Use Asset Fourth amendment to lease agreement related to current headquarters location. Current Headquarters [Member] Fourth Amendment To Lease Agreement Related To Current Headquarters Location [Member] Scenario Statement Scenario [Axis] Scenario, Unspecified Scenario Unspecified [Domain] Scenario, Forecast [Member] Scenario Forecast [Member] Minneapolis, Minnesota [Member] Lease extension period, number of years Lessee Operating Lease Renewal Term Area of leased space. Number of options to extend term of lease. Additional area of lease space. Incentives received upon execution of amendment. Current leased space Area Of Leased Space Lease agreement expires, date Lease Expiration Date1 Future expansion of headquarters premises Additional Area Of Lease Space Number of options to extend term of the lease Number Of Options To Extend Lease Incentives Incentives Received Upon Execution Of Amendment Operating lease cost Operating Lease Cost Variable lease cost Variable Lease Cost Lease expense Lease Cost Cash paid for amounts included in the measurement of lease liabilities. Cash paid for amounts included in the measurement of lease liabilities Cash Paid For Amounts Included In Measurement Of Lease Liabilities [Abstract] Operating cash flows from operating leases Operating Lease Payments Lessee operating lease transition amount. Transition amount Lessee Operating Lease Transition Amount Weighted-average remaining lease term - operating leases Operating Lease Weighted Average Remaining Lease Term1 Weighted-average discount rate - operating leases Operating Lease Weighted Average Discount Rate Percent Remainder of 2019 Lessee Operating Lease Liability Payments Remainder Of Fiscal Year 2020 Lessee Operating Lease Liability Payments Due Year Two 2021 Lessee Operating Lease Liability Payments Due Year Three 2022 Lessee Operating Lease Liability Payments Due Year Four 2023 Lessee Operating Lease Liability Payments Due Year Five Thereafter Lessee Operating Lease Liability Payments Due After Year Five Future minimum payments Lessee Operating Lease Liability Payments Due Less: imputed interest Lessee Operating Lease Liability Undiscounted Excess Amount Operating lease liability 2019 Operating Leases Future Minimum Payments Due Current 2020 Operating Leases Future Minimum Payments Due In Two Years 2021 Operating Leases Future Minimum Payments Due In Three Years 2022 Operating Leases Future Minimum Payments Due In Four Years 2023 Operating Leases Future Minimum Payments Due In Five Years Thereafter Operating Leases Future Minimum Payments Due Thereafter Operating leases, total Operating Leases Future Minimum Payments Due Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Equity Incentive Plan [Member] Stock Compensation Plan [Member] Award Type [Axis] Award Date [Axis] Equity Award [Domain] Award Date [Domain] Two thousand ten. 2010 [Member] Two Thousand Ten [Member] Stock Options [Member] Employee Stock Option [Member] Performance Share Unit [Member] Performance Shares [Member] Restricted Stock Units [Member] Restricted Stock Units R S U [Member] Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] Employee Stock Purchase Plan [Member] Employee Stock [Member] Four zero one (k) stock match. 401(k) Stock Match [Member] Four Zero One K Stock Match [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Additional shares reserved for issuance under the plan Deferred Compensation Arrangement With Individual Common Stock Reserved For Future Issuance Shares available for grant Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Cost of Revenues [Member] Cost Of Sales [Member] Sales and Marketing [Member] Selling And Marketing Expense [Member] Research and Development [Member] Research And Development Expense [Member] General and Administrative [Member] General And Administrative Expense [Member] Employee stock purchase plan. Employee Stock Purchase Plan [Member] Employee Stock Purchase Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Allocated Share Based Compensation Expense Stock-based compensation expense Represents the expense (reversal of expense) during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Performance Share Units Allocated Share Based Compensation Expense Reversal Unrecognized stock-based compensation expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Unrecognized stock-based compensation, expected to be recognized, weighted average period Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Vesting period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Stock options contractual term range Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period Stock options contractual term, from the date of grant Share Based Compensation Arrangement By Share Based Payment Award Terms Of Award Options Outstanding, Beginning balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Options, Granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Options, Exercised Stock Issued During Period Shares Stock Options Exercised Options, Forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Options Outstanding, Ending balance Weighted Average Exercise Price, Outstanding, Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted Average Exercise Price, Granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Weighted Average Exercise Price, Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted Average Exercise Price, Forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Weighted Average Exercise Price, Outstanding, Ending Balance Stock options exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Weighted average exercise price Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Weighted average remaining contractual life Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Weighted average fair value per share of options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate Dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Life (in years) Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Risk-free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Restricted stock awards units vest over, period Share Based Compensation Arrangement By Share Based Payment Award Award Requisite Service Period1 Stock awards, Outstanding, Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Granted, stock units Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Vested and common stock issued, stock units Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Forfeited, stock units Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Stock awards, Outstanding, Ending Balance Weighted average grant date fair value, Outstanding, Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Granted, Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Vested and common stock issued, Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Forfeited, Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Weighted average grant date fair value, Outstanding, Ending Balance Share based compensation arrangement by share based payment award equity instruments other than options vested and unissued in period. Number of RSU's vested and not issued during the period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested And Unissued In Period Restricted common stock issued, stock awards Restrictions lapsed, stock awards Forfeited, stock awards Restricted common stock issued, Weighted Average Grant Date Fair Value Restrictions lapsed, Weighted Average Grant Date Fair Value Forfeited, Weighted Average Grant Date Fair Value The number of six-month offering periods during each calendar year. Purchase price as a percentage of fair market value Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent Number of offerings per year Number Of Offerings Amount withheld from employees Adjustments Related To Tax Withholding For Share Based Compensation Volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum allowable contribution by employee percentage Defined Contribution Plan Maximum Annual Contributions Per Employee Percent Defined benefit plan employer matching contribution percent Defined Contribution Plan Employer Matching Contribution Percent Of Match Maximum annual contribution per employee, percent Defined Contribution Plan Employer Matching Contribution Percent Unrecognized tax benefits Unrecognized Tax Benefits Accrued interest or tax penalties Income Tax Examination Penalties And Interest Accrued Net income per share. Net Income Per Share [Abstract] Numerator Net Income Loss [Abstract] Net income Denominator Weighted average common shares outstanding, basic Options to purchase common stock Incremental Common Shares Attributable To Share Based Payment Arrangements Restricted stock units Incremental Common Shares Attributable To Contingently Issuable Shares Employee stock purchase plan Weighted average common shares outstanding, diluted Antidilutive shares (in thousands) Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Stock dividend percentage in stock split. Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Stock split ratio Stockholders Equity Note Stock Split Conversion Ratio1 Percentage of stock dividend from stock split Stock Dividend Percentage In Stock Split Common stock, shares outstanding