CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022		Sep. 30, 2021
Revenues	$ 247,780,000	$ 217,410,000	$ 717,621,000		$ 650,901,000
Goodwill impairment charge			0		55,837,000
Provision for income taxes	(1,500,000)	(7,400,000)	(4,200,000)		(8,400,000)
Discontinued operations:
Net income (loss) from discontinued operations, net of income tax	3,747,000	(736,000)	16,268,000		3,980,000
Net loss	$ (22,873,000)	$ (91,182,000)	$ (76,887,000)	[1]	$ (142,966,000)	[1]
Basic and diluted net loss per common share:
Loss from continuing operations, basic (in dollars per share)	$ (0.62)	$ (2.92)	$ (2.25)		$ (4.75)
Loss from continuing operations, diluted (in dollars per share)	(0.62)	(2.92)	(2.25)		(4.75)
Income (loss) from discontinued operations, basic (in dollars per share)	0.09	(0.02)	0.39		0.13
Income (loss) from discontinued operations, diluted (in dollars per share)	0.09	(0.02)	0.39		0.13
Total, basic (in dollars per share)	(0.53)	(2.94)	(1.86)		(4.62)
Total, diluted (in dollars per share)	$ (0.53)	$ (2.94)	$ (1.86)		$ (4.62)
Weighted-average number of shares outstanding:
Weighted-average number of basic shares outstanding (in shares)	43,224	30,980	41,388		30,933
Weighted-average number of diluted shares outstanding (in shares)	43,224	30,980	41,388		30,933
Continuing Operations
Revenues	$ 218,339,000	$ 197,879,000	$ 628,917,000		$ 591,043,000
Operating expenses	162,322,000	153,369,000	479,656,000		458,237,000
Gross margin	56,017,000	44,510,000	149,261,000		132,806,000
Selling, general and administrative expenses	57,746,000	60,444,000	184,174,000		182,624,000
Restructuring and other related charges, net	0	457,000	16,000		2,317,000
Goodwill impairment charge	0	55,837,000	0		55,837,000
Operating loss	(1,729,000)	(72,228,000)	(34,929,000)		(107,972,000)
Interest expense, net	(26,653,000)	(9,913,000)	(63,708,000)		(28,764,000)
Other income (expense)	3,227,000	(904,000)	9,664,000		(1,790,000)
Loss from continuing operations before income taxes	(25,155,000)	(83,045,000)	(88,973,000)		(138,526,000)
Provision for income taxes	(1,465,000)	(7,401,000)	(4,182,000)		(8,420,000)
Net loss from continuing operations	$ (26,620,000)	$ (90,446,000)	$ (93,155,000)		$ (146,946,000)

[1] Condensed consolidated statements of cash flows include discontinued operations. September 30, 2022September 30, 2021Cash and cash equivalents from continuing operations$56,387 $12,009 Cash and cash equivalents from discontinued operations10,641 4,963 Total$67,028 $16,972