Discontinued Operations - Operations Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2022	Jul. 04, 2021	Jul. 03, 2022	Jul. 04, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) earnings before income taxes		$ (13,500)		$ 15,400
Benefits from (provision for) income taxes	$ 241	1,169	$ 584	1,267
Net (loss) income from discontinued operations, net of taxes	(20,616)	(11,887)	(46,321)	(13,125)
Net loss (income) from discontinued operations attributable to noncontrolling interests	0	449	250	967
Discontinued Operations | C&I Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenues	8,256	48,176	36,710	114,438
Total cost of revenues	14,830	47,856	59,860	110,210
Gross (loss) profit	(6,574)	320	(23,150)	4,228
Operating expenses	13,781	12,771	22,131	18,639
Operating (loss) income	(20,355)	(12,451)	(45,281)	(14,411)
Other (expense) income, net	(502)	(1,054)	(1,874)	(948)
(Loss) earnings before income taxes	(20,857)	(13,505)	(47,155)	(15,359)
Benefits from (provision for) income taxes	241	1,169	584	1,267
Net (loss) income from discontinued operations, net of taxes	(20,616)	(12,336)	(46,571)	(14,092)
Net loss (income) from discontinued operations attributable to noncontrolling interests	0	449	250	967
Net (loss) income from discontinued operations attributable to stockholders	$ (20,616)	$ (11,887)	$ (46,321)	$ (13,125)