Document and Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] Class A Class A common stock Class B Class B common stock Document Information [Line Items] Document Information: Document Type Document Quarterly Report Document Period End Date Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address State Or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag Condensed Condensed Consolidated Balance Sheets Statement [Table] Statement [Line Items] Assets. Assets Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Restricted Cash and Cash Equivalents, Current Funds held for customers Accounts Receivable, after Allowance for Credit Loss, Current Balance, end of period Balance, beginning of period Accounts receivable, net of allowance of $13,225 and $11,466, respectively Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Prepaid expenses and other current assets Assets, Current Total current assets Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Property and equipment, net of accumulated depreciation Property and equipment, net Property and equipment Capitalized Computer Software, Net Capitalized software, net of accumulated amortization Capitalized software, net Intangible Assets, Net (Including Goodwill) Total Goodwill and other intangible assets Capitalized Contract Cost, Net, Noncurrent Ending balance Beginning balance Deferred commissions Deferred Income Tax Assets, Net Deferred income tax asset Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Long-Term Investments Long-term investment Other Assets, Noncurrent Other assets Total other assets Assets Total assets Liabilities and Stockholders' Equity Current liabilities: Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued expenses Accrued expenses Carrying value as of the balance sheet date of customer funds obligations. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Customer Funds Obligations Current Customer funds obligations Employee-related Liabilities, Current Accrued salaries and benefits Carrying value as of the balance sheet date of the obligations incurred relating to variable compensation. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Accrued Variable Compensation Current Accrued variable compensation Contract with Customer, Liability, Current Deferred revenue, current Operating Lease, Liability, Current Current portion of operating lease liabilities Finance Lease, Liability, Current Current portion of finance lease liabilities Business Combination, Contingent Consideration, Liability, Current Future acquisition commitment, current Purchase commitment and contingent consideration liabilities, current Liabilities, Current Total current liabilities Contract with Customer, Liability, Noncurrent Deferred revenue, net of current portion Long-term Debt, Excluding Current Maturities Debt, net of current portion Operating Lease, Liability, Noncurrent Operating lease liabilities, net of current portion Finance Lease, Liability, Noncurrent Finance lease liabilities, net of current portion Business Combination, Contingent Consideration, Liability, Noncurrent Purchase commitment and contingent consideration liabilities, net of current portion Deferred Income Tax Liabilities, Net Deferred income tax liabilities Aggregate carrying value as of the balance sheet date of deferred other liabilities. Deferred Other Liabilities Current Deferred other liabilities Liabilities Total liabilities Commitments and Contingencies. Commitments and contingencies (Note 12) Stockholders' equity (deficit) Stockholders' equity: Preferred Stock, Value, Issued Preferred shares, $0.001 par value, 30,000 shares authorized; no shares issued and outstanding Common Stock, Value, Issued Common stock Treasury Stock, Common, Value Treasury stock, at cost, 1,875 and 504 shares, respectively Additional Paid in Capital Additional paid in capital Retained Earnings (Accumulated Deficit) Accumulated deficit Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Stockholders' Equity Attributable to Parent Balance Balance Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Accounts Receivable, Allowance for Credit Loss, Current Allowance ending balance Allowance beginning balance Allowance for accounts receivable Preferred Stock, Par or Stated Value Per Share Preferred stock par value (per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized (in shares) Preferred Stock, Shares Issued Preferred stock, shares issued (in shares) Preferred Stock, Shares Outstanding Preferred stock, shares outstanding (in shares) Common Stock, Par or Stated Value Per Share Common stock par value (per share) Common Stock, Shares Authorized Common stock, shares authorized (in shares) Common Stock, Shares, Issued Common stock, shares issued (in shares) Common Stock, Shares, Outstanding Balance (in shares) Balance (in shares) Common stock, shares outstanding (in shares) Treasury Stock, Common, Shares Ending balance Treasury Stock (in shares) Beginning Balance Treasury Stock (in shares) Treasury stock, at cost (in shares) Condensed Consolidated Statements of Comprehensive Income (Loss) Product and Service [Axis] Product and Service [Domain] Software subscriptions Software subscriptions Services Services Revenues: Revenue from Contract with Customer, Excluding Assessed Tax Total revenues Cost of revenues: Cost of Goods and Services Sold Total cost of revenues Cost of revenues Gross Profit Gross profit Operating expenses: Research and Development Expense Research and development Research & development Selling and Marketing Expense Selling and marketing Selling & marketing General and Administrative Expense General and administrative General & administrative Other Depreciation and Amortization Depreciation & amortization Depreciation and amortization - property and equipment Depreciation and amortization Amount of changes in settlement value of acquisition related liability. Change In Settlement Value Of Acquisition Related Liability Change in fair value of acquisition contingent earn-outs Operating Costs and Expenses Other operating expense, net Other segment items Operating Expenses Total operating expenses Operating Income (Loss) Income (loss) from operations Interest Income (Expense), Net Interest income, net Interest income, net Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income (loss) before income taxes Income Tax Expense (Benefit) Income tax expense (benefit) Income tax benefit Income tax benefit Net income (loss) Net income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive (income) loss: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation adjustments, net of tax Foreign currency translation adjustments and revaluations, net of tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Unrealized loss on investments, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total other comprehensive income (loss), net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total comprehensive income (loss) Earnings Per Share, Basic Net income (loss) per share, basic (in dollars per share) Basic net income (loss) per share: (in dollars per share) Earnings Per Share, Diluted Dilutive net income (loss) per share: (in dollars per share) Net income (loss) per share, diluted (in dollars per share) Condensed Consolidated Statements of Changes in Stockholders' Equity Equity Components [Axis] Equity Component [Domain] Common Stock Common Stock Treasury Stock, Common [Member] Treasury Stock Additional Paid In Capital. Additional Paid In Capital Retained Earnings [Member] Accumulated Deficit Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Loss Value of stock issued as a result of the net exercise of stock options. Stock Issued During Period Value Stock Options Net Exercised Exercise of stock options, net Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Exercised Exercise of stock options, net (in shares) Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Shares issued upon vesting of Restricted Stock Units, net Restricted Stock, Shares Issued Net of Shares for Tax Withholdings Shares issued upon vesting of Restricted Stock Units, net (in shares) Shares issued upon vesting of Restricted Stock Units, net (in shares) APIC, Share-based Payment Arrangement, Increase for Cost Recognition Stock-based compensation expense Stock Issued During Period, Value, Acquisitions Shares issued for acquisition contingent stock earn-out Stock Issued During Period, Shares, Acquisitions Shares issued for acquisition contingent stock earn-out (in shares) Treasury Stock, Value, Acquired, Cost Method Repurchase of shares Amount repurchased Treasury Stock, Shares, Acquired Total number of shares repurchased Repurchases of shares (in shares) Amount of increase in additional paid in capital (APIC) resulting from tax impact on capped calls transactions. Adjustments to Additional Paid in Capital, Tax Impact On Capped Calls Transactions Tax impact on capped call transactions OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Unrealized loss from available-for-sale investments, net of tax Condensed Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income (loss) Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Hosting Arrangement, Service Contract, Implementation Cost, Expense, Amortization Amortization of cloud computing implementation costs - general and administrative expense Amortization of cloud computing implementation costs Provision For Subscription Cancellations And Non- Renewals Provision for subscription cancellations and non-renewals Amortization of issuance costs Amortization of deferred financing costs Amortization expense of deferred financing costs Amount of increase (decrease) in the fair value of a contingent consideration liabilities, including, but not limited to, differences arising upon settlement. Business Combination Contingent Consideration Arrangements Change In Fair Value Of Contingent Consideration Liabilities Change in fair value of contingent consideration liabilities Share-based Payment Arrangement, Noncash Expense Stock-based compensation expense Stock-based compensation expense Deferred Income Tax Expense (Benefit) Deferred income taxes Increase (Decrease) in Other Current Liabilities Non-cash operating lease costs Other Noncash Income (Expense) Other Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities, net of the effects of business acquisition(s): Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets The increase (decrease) during the reporting period in amount of capitalized contract cost due within one year (or one business cycle). Increase Decrease In Capitalized Contract Cost Net Non current Deferred commissions Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accrued Liabilities Accrued expenses Increase (Decrease) in Deferred Compensation Accrued and deferred compensation Increase (Decrease) in Contract with Customer, Liability Deferred revenue Increase (Decrease) in Other Noncurrent Liabilities Operating lease liabilities Amount of increase (decrease) in other operating capital. Increase (Decrease) In Other Operating Capital Other Net Cash Provided by (Used in) Operating Activities Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Payments to Acquire Productive Assets Acquisition of businesses and assets, net of cash acquired The current period expense charged against earnings for Property and equipment additions Property and Equipment Additions Property and equipment additions The current period expense charged against earnings for Capitalized software additions. Capitalized software additions Capitalized software additions Payments to Acquire Debt Securities, Available-for-sale Purchase of investment securities, available-for-sale Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Proceeds from sales and maturities of investment securities, available-for-sale Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred relating to customer funds. Increase Decrease In Customer Funds Obligations Net increase (decrease) in customer funds obligations Payments for Repurchase of Common Stock Repurchases of shares Payment, Tax Withholding, Share-based Payment Arrangement Payments for taxes related to net share settlement of stock-based awards Proceeds from Stock Options Exercised Proceeds from exercise of stock options Payment for Contingent Consideration Liability, Financing Activities Payments for acquisition contingent cash earn-out Amount paid annual payout Finance Lease, Principal Payments Payments of finance lease liabilities Net Cash Provided by (Used in) Financing Activities Net cash used in financing activities Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Effect of exchange rate changes on cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net decrease in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash, end of period Cash, cash equivalents and restricted cash, beginning of period Total cash, cash equivalents and restricted cash, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] Reconciliation of cash, cash equivalents and restricted cash to the Condensed Consolidated Balance Sheets, end of period: Restricted Cash Held for Customers Restricted cash-funds held for customers SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES REVENUE RECOGNITION Revenue from Contract with Customer [Text Block] REVENUE RECOGNITION ACQUISITIONS Business Combination Disclosure [Text Block] ACQUISITIONS FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS