Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net income (loss)	$ 7,002	$ (35,592)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	5,184	4,512
Impairment charge	1,326	39,835
Deferred income taxes	2,987	(1,813)
Non-cash interest	139	169
Amortization of syndication contracts	119	130
Payments on syndication contracts	(124)	(130)
Non-cash stock-based compensation	1,071	789
Changes in assets and liabilities:
(Increase) decrease in accounts receivable	9,927	7,482
(Increase) decrease in prepaid expenses and other assets	1,177	1,026
Increase (decrease) in accounts payable, accrued expenses and other liabilities	(5,356)	(4,394)
Net cash provided by operating activities	23,452	12,014
Cash flows from investing activities:
Purchases of property and equipment	(1,838)	(2,671)
Purchases of intangible assets		(155)
Proceeds from marketable securities	12,120	16,617
Net cash provided by (used in) investing activities	10,282	13,791
Cash flows from financing activities:
Tax payments related to shares withheld for share-based compensation plans	(9)
Payments on long-term debt	(750)	(750)
Dividends paid	(2,126)	(4,218)
Repurchase of Class A common stock		(525)
Net cash used in financing activities	(2,885)	(5,493)
Effect of exchange rates on cash, cash equivalents and restricted cash	(24)	77
Net increase (decrease) in cash, cash equivalents and restricted cash	30,825	20,389
Cash, cash equivalents and restricted cash:
Beginning	119,911	33,857
Ending	150,736	54,246
Cash payments for:
Interest	1,578	2,511
Income taxes	(195)	145
Supplemental disclosures of non-cash investing and financing activities:
Capital expenditures financed through accounts payable, accrued expenses and other liabilities	$ 837	$ 1,770