CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Cash Flows [Abstract]
Net income (loss)	$ (5,871)	$ 4,779
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,432	7,183
Unrealized gain on equity investment	0	(1,373)
Stock-based compensation	7,059	5,136
Deferred income taxes	(4,327)	(1,645)
Accretion of discount on marketable securities	(1,057)	23
Non-cash operating lease expense	1,532	1,272
Other	(3)	54
Changes in operating assets and liabilities:
Accounts receivable	61,292	68,557
Prepaid expenses and other assets	894	2,054
Accounts payable	(55,387)	(58,588)
Accrued liabilities	(833)	(6,822)
Operating lease liabilities	(1,265)	(1,177)
Other liabilities, non-current	(712)	(139)
Net cash provided by operating activities	12,754	19,314
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(1,417)	(148)
Capitalized software development costs	(6,001)	(4,235)
Purchases of marketable securities	(40,343)	(39,422)
Proceeds from maturities of marketable securities	29,500	16,000
Net cash used in investing activities	(18,261)	(27,805)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercise of stock options	314	481
Principal payments on finance lease obligations	(31)	(28)
Payments to acquire treasury stock	(7,898)	0
Net cash provided by (used in) financing activities	(7,615)	453
NET DECREASE IN CASH AND CASH EQUIVALENTS	(13,122)	(8,038)
CASH AND CASH EQUIVALENTS - Beginning of period	92,382	82,505
CASH AND CASH EQUIVALENTS - End of period	79,260	74,467
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Income taxes paid	349	323
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION:
Stock-based compensation capitalized as internal-use software costs	547	333
Property and equipment included in accounts payable and accrued liabilities	1,311	334
Capitalized software costs included in accounts payable and accrued liabilities	820	516
Operating lease right-of-use assets obtained in exchange for new lease obligations	167	4,632
Business combination purchase consideration - indemnification claims holdback	$ 2,148	$ 0