CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Income Statement [Abstract]
Revenue	$ 466,413	$ 450,534
Cost of revenue, excluding depreciation and amortization	321,948	305,708
Branch and regional administrative expenses	91,708	88,743
Corporate expenses	30,935	36,567
Depreciation and amortization	4,041	5,819
Acquisition-related costs	70	91
Other operating expense (income)	72	(170)
Operating income	17,639	13,776
Interest income	75	62
Interest expense	(35,958)	(22,364)
Other (expense) income	(12,188)	36,457
(Loss) income before income taxes	(30,432)	27,931
Income tax expense	(1,566)	(2,597)
Net (loss) income	$ (31,998)	$ 25,334
Net (loss) income per share:
Net (loss) income per share, basic	$ (0.17)	$ 0.14
Weighted average shares of common stock outstanding, basic	189,054	184,927
Net (loss) income per share, diluted	$ (0.17)	$ 0.14
Weighted average shares of common stock outstanding, diluted	189,054	185,427