Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating Activities
Consolidated net income	$ 36,899	$ 46,947
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	22,419	18,831
Currency loss (gain) on foreign denominated transactions	354	(30)
Deferred taxes	(23,464)	2,336
Provision for doubtful accounts	699	450
Stock-based compensation expense	27,579	28,747
Amortization of deferred contract costs	5,564	6,454
Changes in operating assets and liabilities:
Accounts receivable, net	(12,022)	(47,982)
Inventory	(2,028)	(2,533)
Prepaid expenses, prepaid income taxes, and other assets	(10,434)	(1,485)
Deferred contract costs	(5,746)	(5,098)
Accounts payable	8,168	15,333
Accrued expenses, accrued income taxes, and other liabilities	38,174	15,580
Deferred revenue	2,302	3,989
Lease obligations	(869)	(204)
Net cash provided by operating activities	87,595	81,335
Investing Activities
Purchases of property and equipment	(2,661)	(4,672)
Capitalization of website development costs	(5,502)	(2,109)
Cash paid for acquisitions, net of cash acquired		(64,273)
Investments in certificates of deposit		(45,000)
Maturities of certificates of deposit	60,000	60,000
Net cash (used in) provided by investing activities	51,837	(56,054)
Financing Activities
Proceeds from exercise of stock options	705	398
Payment of finance lease obligations	(35)	(13)
Payment of withholding taxes on net share settlement of equity awards	(11,260)	(8,208)
Repayment of line of credit		(14,250)
Payment of tax distributions to redeemable noncontrolling interest holders	(12,691)
Payments made to third party payment processor	(2,363)
Net cash used in financing activities	(25,644)	(22,073)
Impact of foreign currency on cash, cash equivalents, and restricted cash	(912)	(135)
Net increase in cash, cash equivalents, and restricted cash	112,876	3,073
Cash, cash equivalents, and restricted cash at beginning of period	248,280	200,926
Cash, cash equivalents, and restricted cash at end of period	361,156	203,999
Supplemental disclosure of cash flow information:
Cash paid for income taxes	41,160	8,220
Cash paid for operating lease liabilities	9,220	8,064
Supplemental noncash disclosure of cash flow information:
Unpaid purchases of property and equipment, capitalized website development, capitalized internal-use software and capitalized hosting arrangements	362	245
Capitalized stock-based compensation expense in website development and internal-use software costs and hosting arrangements	2,471	1,435
Obtaining a right-of-use asset in exchange for a finance lease liability		664
Obtaining a right-of-use asset in exchange for an operating lease liability	5,307	12,336
Issuance of stock for acquisition		$ 103,645
Accretion of Redeemable Noncontrolling Interest to Redemption Value	111,620
Accrued tax distributions to redeemable noncontrolling interest holders	$ 3,638