Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ 1,887	$ 7,002
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	6,395	5,184
Impairment charge		1,326
Deferred income taxes	(359)	2,987
Non-cash interest	280	139
Amortization of syndication contracts	116	119
Payments on syndication contracts	(118)	(124)
Non-cash stock-based compensation	2,573	1,071
(Gain) loss on disposal of property and equipment	(151)
Change in fair value of contingent consideration	5,100
Changes in assets and liabilities:
(Increase) decrease in accounts receivable	29,380	9,927
(Increase) decrease in prepaid expenses and other assets	(2,405)	1,177
Increase (decrease) in accounts payable, accrued expenses and other liabilities	10,521	(5,356)
Net cash provided by operating activities	53,219	23,452
Cash flows from investing activities:
Proceeds from sale of property and equipment and intangibles	164
Purchases of property and equipment	(1,547)	(1,838)
Purchases of marketable securities	(85,517)
Proceeds from marketable securities		12,120
Net cash provided by (used in) investing activities	(86,900)	10,282
Cash flows from financing activities:
Proceeds from stock option exercises	218
Tax payments related to shares withheld for share-based compensation plans	(257)	(9)
Payments on long-term debt	(750)	(750)
Dividends paid	(2,167)	(2,126)
Repurchase of Class A common stock	(7,142)
Payment of contingent consideration	(14,730)
Pricipal payments under finance lease obligation	(10)
Net cash used in financing activities	(24,838)	(2,885)
Effect of exchange rates on cash, cash equivalents and restricted cash	(1)	(24)
Net increase (decrease) in cash, cash equivalents and restricted cash	(58,520)	30,825
Cash, cash equivalents and restricted cash:
Beginning	185,843	119,911
Ending	127,323	150,736
Cash payments for:
Interest	1,556	1,578
Income taxes	1,211	(195)
Supplemental disclosures of non-cash investing and financing activities:
Capital expenditures financed through accounts payable, accrued expenses and other liabilities	$ 922	$ 837