CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CONSOLIDATED STATEMENTS OF OPERATIONS
Net revenues	$ 1,282,233	$ 1,304,028	$ 1,336,542
Operating expense:
Cost of services and products (exclusive of depreciation and amortization)	569,629	560,644	574,936
Selling, general and administrative expenses	271,125	275,361	299,088
Acquisition and other transaction costs		7,646
Loss on impairment of assets held for sale	5,704
Depreciation and amortization	300,597	324,864	381,237
Income from operations	135,178	135,513	81,281
Other income (expense):
Interest expense, net of interest income	(175,195)	(143,591)	(136,660)
Gain (loss) on extinguishment of debt	(17,101)	(18,264)	4,510
Investment income	42,307	41,062	38,088
Change in fair value of contingent payment rights	(86,476)	23,802
Other, net	873	9,716	(10,864)
Income (loss) before income taxes	(100,414)	48,238	(23,645)
Income tax expense (benefit)	6,279	10,936	(3,714)
Net income (loss)	(106,693)	37,302	(19,931)
Less: dividends on Series A preferred stock	2,677
Less: net income attributable to noncontrolling interest	392	325	452
Net income (loss) attributable to common shareholders	$ (109,762)	$ 36,977	$ (20,383)
Net income (loss) per common share - basic and diluted
Net income (loss) per basic common shares attributable to common shareholders	$ (1.26)	$ 0.47	$ (0.29)
Net income (loss) per diluted common shares attributable to common shareholders	$ (1.26)	$ 0.47	(0.29)
Dividends declared per common share (in dollars per share)			$ 0.39