Discontinued Operations - Operations Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2022	Oct. 03, 2021	Oct. 02, 2022	Oct. 03, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) earnings before income taxes		$ (12,000)		$ (27,400)
Benefits from (provision for) income taxes	$ 0	179	$ 584	1,446
Net (loss) income from discontinued operations, net of taxes	0	(11,669)	(46,321)	(24,794)
Net loss (income) from discontinued operations attributable to noncontrolling interests	$ 0	194	250	1,161
Discontinued Operations | C&I Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenues		40,324	36,710	154,762
Total cost of revenues		43,063	59,860	153,273
Gross (loss) profit		(2,739)	(23,150)	1,489
Operating expenses		7,829	22,131	26,468
Operating (loss) income		(10,568)	(45,281)	(24,979)
Other (expense) income, net		(1,474)	(1,874)	(2,422)
(Loss) earnings before income taxes		(12,042)	(47,155)	(27,401)
Benefits from (provision for) income taxes		179	584	1,446
Net (loss) income from discontinued operations, net of taxes		(11,863)	(46,571)	(25,955)
Net loss (income) from discontinued operations attributable to noncontrolling interests		194	250	1,161
Net (loss) income from discontinued operations attributable to stockholders		$ (11,669)	$ (46,321)	$ (24,794)