Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 29, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross carrying amount		$ 409,035	$ 430,712
Accumulated amortization		(175,216)	(158,809)
Intangible assets, net		233,819	271,903
Amortization of Intangible Assets		38,417	$ 48,097	$ 49,356
Future Amortization Expense, Year One		37,288
Future Amortization Expense, Year Two		35,830
Future Amortization Expense, Year Three		31,833
Future Amortization Expense, Year Four		30,095
Future Amortization Expense, Year Five		$ 20,525
Trade Names [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Gross carrying amount	$ 101,000
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	55,000
Impairment of Intangible Assets (Excluding Goodwill)	46,000
Customer Relationships [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted Average Useful Life		12 years	12 years	10 years
Gross carrying amount		$ 335,027	$ 354,305
Accumulated amortization		(157,151)	(148,632)
Intangible assets, net		$ 177,876	$ 205,673
Intangible Assets, Explanation of Significant Additions				20,000
Other Intangible Assets [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Weighted Average Useful Life		8 years	8 years
Gross carrying amount		$ 74,008	$ 76,407
Accumulated amortization		(18,065)	(10,177)
Intangible assets, net		$ 55,943	$ 66,230
Net of Tax [Member] | Trade Names [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)	$ 34,653