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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The average effective interest rate during the reporting period.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 26, 2021	Sep. 27, 2020	Dec. 31, 2020	Apr. 30, 2020
Debt Instrument [Line Items]
Long-term debt, gross	$ 3,014,250	$ 2,714,250	$ 3,014,250
Less debt issuance costs and original issue discount	(50,207)	(52,316)	(60,006)
Total long-term debt	$ 2,964,043	$ 2,661,934	$ 2,954,244
Term debt \| Senior Secured Term Loan
Debt Instrument [Line Items]
Interest rate during period	1.86%	2.85%	2.70%
Long-term debt, gross	$ 264,250	$ 264,250	$ 264,250
2024 U.S. fixed rate senior unsecured notes at 5.375% \| Secured Debt
Debt Instrument [Line Items]
Interest rate, stated percentage	5.375%
Long-term debt, gross	$ 450,000	450,000	450,000
2025 U.S. fixed rate senior secured notes at 5.500% \| Secured Debt
Debt Instrument [Line Items]
Interest rate, stated percentage	5.50%			5.50%
Long-term debt, gross	$ 1,000,000	1,000,000	1,000,000
2027 U.S. fixed rate senior unsecured notes at 5.375% \| Secured Debt
Debt Instrument [Line Items]
Interest rate, stated percentage	5.375%
Long-term debt, gross	$ 500,000	500,000	500,000
2028 U.S. fixed rate senior unsecured notes at 6.500% \| Secured Debt
Debt Instrument [Line Items]
Interest rate, stated percentage	6.50%
Long-term debt, gross	$ 300,000	0	300,000
2029 U.S. fixed rate senior unsecured notes at 5.250% \| Secured Debt
Debt Instrument [Line Items]
Interest rate, stated percentage	5.25%
Long-term debt, gross	$ 500,000	$ 500,000	$ 500,000