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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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Long-Term Debt - Long Term Debt (Details) $ in Thousands, kr in Millions	Jun. 27, 2020 USD ($)	Jun. 27, 2020 DKK (kr)	Dec. 31, 2019 USD ($)	Sep. 28, 2019 USD ($)
Debt Instrument
Long-term debt, gross	$ 1,776,503		$ 1,528,146
Unamortized debt issuance costs and original issue discount	(14,652)		(10,774)
Current maturities of long-term debt	(69,194)		(65,846)
Long-term debt net of current maturities	1,692,657		1,451,526
Senior Secured Notes and Senior Notes
Debt Instrument
Long-term debt, gross	$ 1,050,000		800,000
Senior Secured Notes and Senior Notes \| Minimum
Debt Instrument
Effective interest rate, percent	4.63%	4.63%
Senior Secured Notes and Senior Notes \| Maximum
Debt Instrument
Effective interest rate, percent	6.25%	6.25%
Term Loan \| Term Loan
Debt Instrument
Long-term debt, gross	$ 589,075		591,153
Unamortized debt issuance costs and original issue discount				$ (600)
Term Loan \| Term Loan \| Minimum
Debt Instrument
Effective interest rate, percent	1.30%	1.30%
Term Loan \| Term Loan \| Maximum
Debt Instrument
Effective interest rate, percent	3.45%	3.45%
Term Loan \| Finance leases and other financing arrangements
Debt Instrument
Long-term debt, gross	$ 109,945		108,613
Term Loan \| Finance leases and other financing arrangements \| Minimum
Debt Instrument
Effective interest rate, percent	1.68%	1.68%
Term Loan \| Finance leases and other financing arrangements \| Maximum
Debt Instrument
Effective interest rate, percent	6.00%	6.00%
Mortgage notes
Debt Instrument
Long-term debt, gross	$ 27,483	kr 182.6	28,175
Effective interest rate, percent	1.65%	1.65%
Line of Credit \| Revolving credit facilities \| Minimum
Debt Instrument
Effective interest rate, percent	2.25%	2.25%
Line of Credit \| Revolving credit facilities \| Maximum
Debt Instrument
Effective interest rate, percent	2.55%	2.55%
Installment notes for stock
Debt Instrument
Long-term debt, gross	$ 0		$ 205
Effective interest rate, percent	0.00%	0.00%