CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenues	$ 210,758	$ 206,715	$ 638,976	$ 648,484
Operating expenses	157,234	153,928	473,167	487,779
Gross margin	53,524	52,787	165,809	160,705
Selling, general and administrative expenses	50,366	54,045	157,878	165,113
Operating income (loss)	3,158	(1,258)	7,931	(4,408)
Interest expense, net	(11,770)	(10,067)	(35,777)	(43,499)
Loss on debt extinguishment	0	(3)	0	(1,585)
Other (expense) income, net	(2,010)	266	(1,189)	914
Loss before income taxes	(10,622)	(11,062)	(29,035)	(48,578)
Provision for income taxes	(504)	(1,072)	(2,049)	(4,020)
Net loss	$ (11,126)	$ (12,134)	$ (31,084)	$ (52,598)
Loss per common share:
Basic (in usd per share)	$ (2.52)	$ (2.78)	$ (7.04)	$ (12.07)
Diluted (in usd per share)	$ (2.52)	$ (2.78)	$ (7.04)	$ (12.07)
Weighted-average number of shares outstanding:
Basic (in shares)	4,422	4,368	4,418	4,358
Diluted (in shares)	4,422	4,368	4,418	4,358