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Debt (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands	Oct. 01, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Unamortized discount on term loan B and debt issuance costs	$ (6,645)	$ (6,715)
Total debt	630,655	731,258
Current portion of long-term debt	(20,250)	(37,500)
Total long-term debt	610,405	693,758
Secured Debt | Senior secured term loan A
Debt Instrument [Line Items]
Long-term debt, gross	250,000	229,687
Secured Debt | Senior secured term loan B
Debt Instrument [Line Items]
Long-term debt, gross	350,000	508,286
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Long-term debt, gross	37,300	$ 0
Unamortized discount on term loan B and debt issuance costs	$ (1,200)

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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