Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 26, 2021

Accounting Policies [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis

Financial assets and liabilities measured at fair value on a recurring basis as of June 26, 2021 and December 26, 2020 are summarized as follows:

Items Measured at Fair Value at June 26, 2021
(in thousands)	Level 1		Level 2		Total
Mutual fund investments held in rabbi trust	$	980	$	—	$	980
Derivative liabilities	$	—	$	(3,098)	$	(3,098)

Items Measured at Fair Value at December 26, 2020
(in thousands)	Level 1		Level 2		Total
Mutual fund investments held in rabbi trust	$	704	$	—	$	704
Derivative assets not designated as hedging instruments	—		227		227
Total assets measured at fair value on a recurring basis	$	704	$	227	$	931
Derivative liabilities designated as hedging instruments	$	—	$	(9,561)	$	(9,561)
Derivative liabilities not designated as hedging instruments	—		(12,197)		(12,197)
Total derivative liabilities	$	—	$	(21,758)	$	(21,758)

Schedule of Carrying Values and Estimated Fair Value of Total Long-Term Debt

The carrying value and estimated fair value of total long-term debt were as follows:

	June 26, 2021				December 26, 2020
(in thousands)	Carrying value		Estimated fair value		Carrying value		Estimated fair value
Long-term debt	$	1,521,750	$	1,589,090	$	2,125,207	$	2,169,597

Schedule of Accumulated Other Comprehensive Income (Loss)

The following tables present changes, net of tax, in each component of accumulated other comprehensive income (loss).

	Three months ended June 26, 2021
(in thousands)	Foreign currency translation adjustment		Cash flow hedges		Defined benefit pension plan		Accumulated other comprehensive income
Balance at March 27, 2021	$	7,591	$	(57)	$	(91)	$	7,443
Net change	11,411		—		—		11,411
Balance at June 26, 2021	$	19,002	$	(57)	$	(91)	$	18,854

	Three months ended June 27, 2020
(in thousands)	Foreign currency translation adjustment		Cash flow hedges		Defined benefit pension plan		Accumulated other comprehensive income (loss)
Balance at March 28, 2020	$	(12,141)	$	—	$	—	$	(12,141)
Net change	4,652		—		—		4,652
Balance at June 27, 2020	$	(7,489)	$	—	$	—	$	(7,489)

	Six months ended June 26, 2021
(in thousands)	Foreign currency translation adjustment		Cash flow hedges		Defined benefit pension plan		Accumulated other comprehensive income
Balance at December 26, 2020	$	16,834	$	(87)	$	(219)	$	16,528
Net change	2,168		30		128		2,326
Balance at June 26, 2021	$	19,002	$	(57)	$	(91)	$	18,854

	Six months ended June 27, 2020
(in thousands)	Foreign currency translation adjustment		Cash flow hedges		Defined benefit pension plan		Accumulated other comprehensive income (loss)
Balance at December 28, 2019	$	3,626	$	—	$	—	$	3,626
Net change	(11,115)		—		—		(11,115)
Balance at June 27, 2020	$	(7,489)	$	—	$	—	$	(7,489)