Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
OPERATING ACTIVITIES:
Net income	$ 11,528	$ 14,360
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,686	6,686
Provision for credit loss	48	89
Amortization of debt discount and issuance costs	418	2,800
Stock-based compensation expense	18,614	9,648
Deferred income taxes	(67)	(687)
Other, net	107	(18)
Changes in assets and liabilities:
Accounts receivable	21,735	8,768
Prepaid expenses and other current assets	(138)	(805)
Other long-term assets	2,139	(3,628)
Accounts payable	(302)	(767)
Accrued compensation and benefits	(6,896)	2,626
Other accrued expenses and current liabilities	(61,759)	309
Deferred revenue	12,673	(2,810)
Net cash provided by operating activities	5,786	36,571
INVESTING ACTIVITIES:
Payments for acquisition of businesses, net of cash acquired	(12,971)
Capital expenditures	(2,190)	(3,039)
Other investing activities, net	(343)	(412)
Net cash used in investing activities	(15,504)	(3,451)
FINANCING ACTIVITIES:
Proceeds from employee stock purchase plan contributions	2,362
Proceeds from the exercise of common stock options	237	271
Payments on revolving commitment		(30,000)
Other financing activities	(90)	(107)
Net cash provided by (used in) financing activities	2,509	(29,836)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(970)	(1,331)
Net (decrease) increase in cash, cash equivalents and restricted cash	(8,179)	1,953
Cash, cash equivalents and restricted cash at beginning of year	414,012	241,547
Cash, cash equivalents and restricted cash at end of period	405,833	243,500
Supplemental disclosure of cash flow:
Interest paid	1	47
Income taxes paid	3,187	2,381
Supplemental disclosure of non-cash investing and financing activities:
Property and equipment in accounts payable, other current liabilities and other liabilities	$ 772	$ 619