Financial Instruments Measured at Fair Value - Fair Value Hierarchy (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Method Investment, Ownership Percentage		8.40%		8.40%
Debt and Equity Securities, Unrealized Gain (Loss)		$ 1,755	$ 14	$ 6,865	$ (4,993)
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents		5,886		5,886		$ 6,062
Equity investments		54,472		54,472		45,879
Interest rate swaps designated as cash flow hedges - asset		45,375		45,375		20,983
Foreign exchange contracts designated as net investment hedges		33,650		33,650		12,760
Total Fair Value Assets And Liabilities Measured On Recurring Basis		139,383		139,383		85,684
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents		5,886		5,886		6,062	[1]
Equity investments	[2]	54,472		54,472		45,879
Interest rate swaps designated as cash flow hedges - asset		0		0		0
Foreign exchange contracts designated as net investment hedges		0		0		0
Total Fair Value Assets And Liabilities Measured On Recurring Basis		60,358		60,358		51,941
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents		0		0		0
Equity investments		0		0		0
Interest rate swaps designated as cash flow hedges - asset		45,375		45,375		20,983
Foreign exchange contracts designated as net investment hedges		33,650		33,650		12,760
Total Fair Value Assets And Liabilities Measured On Recurring Basis		79,025		79,025		33,743
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents		0		0		0
Equity investments		0		0		0
Interest rate swaps designated as cash flow hedges - asset		0		0		0
Foreign exchange contracts designated as net investment hedges		0		0		0
Total Fair Value Assets And Liabilities Measured On Recurring Basis		$ 0		$ 0		$ 0

[1] Cash equivalents include highly liquid investments with an original maturity of less than three months.

[2] The company has an 8.4% equity ownership interest in Marubun Corporation and a portfolio of mutual funds with quoted market prices. The company recorded an unrealized gain of $1,755 and $6,865 for the third quarter and first nine months of 2021, respectively, on equity securities held at the end of the quarter. The company recorded an unrealized gain of $14 and unrealized loss of $4,993 for the third quarter and first nine months of 2020, respectively, on equity securities held at the end of the quarter.