CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Income Statement [Abstract]
Revenue	$ 443,009	$ 411,276	$ 1,336,498	$ 1,264,548
Cost of revenue, excluding depreciation and amortization	308,426	271,534	912,046	846,534
Branch and regional administrative expenses	89,542	76,370	267,283	223,462
Corporate expenses	33,215	37,873	105,984	97,673
Goodwill impairment			470,207
Depreciation and amortization	4,917	5,145	16,774	15,163
Acquisition-related costs		2,007	69	4,779
Other operating expense	2,122		1,953
Operating income (loss)	4,787	18,347	(437,818)	76,937
Interest income	164	44	369	182
Interest expense	(28,462)	(12,106)	(73,745)	(53,793)
Loss on debt extinguishment		(4,784)		(13,702)
Other income (expense)	45,140	(511)	86,523	(1,088)
Income (Loss) before income taxes	21,629	990	(424,671)	8,536
Income tax benefit	2,669	1,100	416	612
Net income (loss)	$ 24,298	$ 2,090	$ (424,255)	$ 9,148
Net income (loss) per share:
Net income (loss) per share, basic	$ 0.13	$ 0.01	$ (2.29)	$ 0.06
Weighted average shares of common stock outstanding, basic	186,113	184,554	185,327	165,877
Net income (loss) per share, diluted	$ 0.13	$ 0.01	$ (2.29)	$ 0.05
Weighted average shares of common stock outstanding, diluted	186,166	188,246	185,327	170,667