Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Sep. 28, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenue	$ 671,476	$ 624,468	$ 2,016,079	$ 1,892,186
Costs and expenses:
Cost of services (excluding depreciation and impairment)	$ 521,093	$ 468,422	$ 1,518,818	$ 1,357,299
Cost, Product and Service [Extensible Enumeration]	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember
Depreciation and amortization	$ 29,641	$ 27,069	$ 87,393	$ 80,582
Selling, general, and administrative expenses	65,110	68,477	234,148	220,597
Impairment Losses	1,257	1,776	7,140	7,081
Total costs and expenses	617,101	565,744	1,847,499	1,665,559
Income from operations	54,375	58,724	168,580	226,627
Interest expense	39,459	38,451	119,806	114,365
Interest income	(1,260)	(1,581)	(5,120)	(4,119)
Other (income) expense, net	(1,937)	716	(5,721)	(1,725)
Income before income tax	18,113	21,138	59,615	118,106
Income tax expense	4,154	5,102	18,872	30,375
Net income	13,959	16,036	40,743	87,731
Other comprehensive (loss) income, net of tax:
Change in net (losses) gains on cash flow hedges	(14,406)	(65)	(6,285)	2,420
Total comprehensive (loss) income	$ (447)	$ 15,971	$ 34,458	$ 90,151
Net income per common share:
Basic	$ 0.15	$ 0.18	$ 0.45	$ 0.97
Diluted	$ 0.15	$ 0.18	$ 0.45	$ 0.97
Weighted average number of common shares
Basic	90,366	90,366	90,366	90,366
Diluted	90,366	90,366	90,366	90,396