CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Revenues		$ 481,252	$ 437,714	$ 633,066
Cost of revenue (exclusive of depreciation of $10,662, $9,209, and $5,920, respectively, included below)		278,252	250,362	445,817
Marketing expense		6,529	12,197	17,720
Selling, general and administrative expenses		41,991	42,765	53,198
Depreciation expense		11,298	9,930	7,137
Restructuring and related charges			4,358	1,881
Operating income		143,182	118,102	107,313
Interest expense		34,762	43,477	41,803
Loss on extinguishment and modification of debt		19,027
Other (income) expense, net		(44,328)	226
Total non-operating expense, net		9,461	43,703	41,803
Income before income taxes		133,721	74,399	65,510
Income tax expense		26,345	17,530	20,293
Income from continuing operations		107,376	56,869	45,217
Loss from discontinued operations, net of income tax benefit of $844, $46,851, and $59,881, respectively		(2,462)	(280,500)	(332,038)
Net income (loss)		$ 104,914	$ (223,631)	$ (286,821)
Earnings (loss) per share - basic:
Continuing operations		$ 2.17	$ 1.17	$ 0.97
Discontinued operations		(0.05)	(5.75)	(7.14)
Net income (loss)	[1]	2.12	(4.59)	(6.17)
Earnings (loss) per share – diluted:
Continuing operations		2.13	1.16	0.96
Discontinued operations		(0.05)	(5.70)	(7.05)
Net income (loss)		$ 2.08	$ (4.54)	$ (6.09)
Comprehensive income (loss)		$ 114,052	$ (228,929)	$ (298,912)
Weighted average common shares and equivalents:
Basic		49,573	48,746	46,509
Diluted		50,424	49,217	47,103

[1] Figures may not add due to rounding.