Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
OPERATING ACTIVITIES:
Net (loss) income	$ (1,959)	$ 11,528
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	9,750	7,686
Stock-based compensation expense	22,161	18,614
Loss on mark-to-market adjustment of contingent consideration	(7,006)	0
Other, net	640	506
Changes in assets and liabilities:
Accounts receivable	39,872	21,735
Prepaid expenses and other current assets	1,981	(138)
Other long-term assets	(1,944)	2,139
Accounts payable	(5,362)	(302)
Accrued compensation and benefits	(12,283)	(6,896)
Other accrued expenses and current liabilities	2,015	(61,759)
Deferred revenue	(2,678)	12,673
Net cash provided by operating activities	59,199	5,786
INVESTING ACTIVITIES:
Capital expenditures	(1,727)	(2,190)
Payments for acquisition of businesses, net of cash acquired	0	(12,971)
Other investing activities, net	(1,405)	(343)
Net cash used in investing activities	(3,132)	(15,504)
FINANCING ACTIVITIES:
Proceeds from the exercise of common stock options	9,872	237
Payments for repurchase of common stock	6,255	0
Proceeds from employee stock purchase plan contributions	1,868	2,362
Other financing activities	(29)	(90)
Net cash provided by financing activities	5,456	2,509
Effect of exchange rate changes on cash, cash equivalents and restricted cash	379	(970)
Net increase (decrease) in cash, cash equivalents and restricted cash	61,902	(8,179)
Cash, cash equivalents and restricted cash at beginning of year	316,958	414,012
Cash, cash equivalents and restricted cash at end of period	378,860	405,833
Supplemental disclosure of cash flow:
Interest paid	3	1
Income taxes paid	4,751	3,187
Supplemental disclosure of non-cash investing and financing activities:
Property and equipment in accounts payable, other current liabilities and other liabilities	$ 1,559	$ 772