Fair Value of Financial Instruments - Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Sep. 27, 2020	Dec. 29, 2019	Sep. 29, 2019
Assets:
Available-for-sale securities	$ 3,682	$ 1,296	$ 1,148
Derivatives	15,736	48,973	54,030
Total assets	19,418	50,269	55,178
Liabilities:
Derivatives	372	5,733	11,508
Option agreement	20,615	22,145	22,196
Total liabilities	20,987	27,878	33,704
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Available-for-sale securities	3,682	1,296	1,148
Derivatives	0	0	0
Total assets	3,682	1,296	1,148
Liabilities:
Derivatives	0	0	0
Option agreement	0	0	0
Total liabilities	0	0	0
Significant Other Observable Inputs (Level 2)
Assets:
Available-for-sale securities	0	0	0
Derivatives	15,736	48,973	54,030
Total assets	15,736	48,973	54,030
Liabilities:
Derivatives	372	5,733	11,508
Option agreement	0	0	0
Total liabilities	372	5,733	11,508
Significant Unobservable Inputs (Level 3)
Assets:
Available-for-sale securities	0	0	0
Derivatives	0	0	0
Total assets	0	0	0
Liabilities:
Derivatives	0	0	0
Option agreement	20,615	22,145	22,196
Total liabilities	$ 20,615	$ 22,145	$ 22,196