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Accumulated Other Comprehensive Loss - Before and After Tax Amounts for Comprehensive Income (Loss) Components (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income/(loss)	$ 3,447	$ (26,198)
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income/(loss) before tax	(185)	(32,021)
Other comprehensive income/(loss), tax	0	0
Other comprehensive income/(loss)	(185)	(32,021)
Defined benefit pension items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss)/income before reclassifications before tax	(1,276)	151
Other comprehensive (loss)/income before reclassifications, tax	305	(36)
Other comprehensive (loss)/income before reclassifications, net of tax	(971)	115
Other comprehensive income/(loss) before tax	251	7,052
Other comprehensive income/(loss), tax	(60)	(1,667)
Other comprehensive income/(loss)	191	5,385
Defined benefit pension items | Net Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income/(loss) before tax	1,527	6,901
Amounts reclassified from accumulated other comprehensive income/(loss), tax	(365)	(1,631)
Amounts reclassified from accumulated other comprehensive income/(loss) net of tax	1,162	5,270
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive (loss)/income before reclassifications before tax	7,179	1,338
Other comprehensive (loss)/income before reclassifications, tax	(2,060)	(340)
Other comprehensive (loss)/income before reclassifications, net of tax	5,119	998
Other comprehensive income/(loss) before tax	3,575	1,284
Other comprehensive income/(loss), tax	(1,025)	(326)
Other comprehensive income/(loss)	2,550	958
Cash Flow Hedges | Fixed Assets
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income/(loss) before tax	117	(13)
Amounts reclassified from accumulated other comprehensive income/(loss), tax	(32)	3
Amounts reclassified from accumulated other comprehensive income/(loss) net of tax	85	(10)
Cash Flow Hedges | Net Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income/(loss) before tax	(3,721)	(41)
Amounts reclassified from accumulated other comprehensive income/(loss), tax	1,067	11
Amounts reclassified from accumulated other comprehensive income/(loss) net of tax	(2,654)	(30)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income/(loss) before tax	3,641	(23,685)
Other comprehensive income/(loss), tax	(1,085)	(1,993)
Other comprehensive income/(loss)	$ 2,556	$ (25,678)

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