Condensed Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Total	Treasury Stock	Add’l Paid in Capital	Accumulated Comprehensive Income	Accumulated Deficit	Non-controlling interest	Series AA PREF Stock Preferred Stock	Class A CMN Stock Common Stock	Class B CMN Stock Common Stock
Beginning balance at Dec. 31, 2021	$ 1,217,089	$ (50,852)	$ 2,001,399	$ 855	$ (734,415)	$ 0	$ 0	$ 88	$ 14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation	1,405		1,405
Issuance of common stock through stock awards	30,145		30,145
Exercise of stock options	1,307		1,307
Issuance of common stock through employee purchase plan	3,589		3,589
Purchase of treasury stock	(10,446)	(10,446)
Foreign currency translation	314			314
Net income	92,151				92,151
Dividends/distributions to common shareholders	(111,602)				(111,602)
Dividends, preferred stock	(91)				(91)
Ending balance at Mar. 31, 2022	1,223,861	(61,298)	2,037,845	1,169	(753,957)	0	0	88	14
Beginning balance at Dec. 31, 2022	1,195,374	(61,358)	2,061,671	(659)	(804,382)	0	0	88	14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation	3,305		3,305
Issuance of common stock through stock awards	15,934		15,934
Exercise of stock options	678		678
Issuance of common stock through employee purchase plan	3,530		3,530
Purchase of treasury stock	(5,946)	(5,946)
Foreign currency translation	(2)			(2)
Net income	76,198				76,041	157
Reallocation of capital	(619)		(1,016)			397
Dividends/distributions to common shareholders	(127,674)				(127,460)	(214)
Dividends, preferred stock	(91)				(91)
Ending balance at Mar. 31, 2023	$ 1,160,687	$ (67,304)	$ 2,084,102	$ (661)	$ (855,892)	$ 340	$ 0	$ 88	$ 14