Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 27, 2021	Mar. 28, 2021	Jun. 28, 2020	Mar. 29, 2020	Jun. 27, 2021	Jun. 28, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	$ 1,976,386	$ 1,722,785	$ 1,691,983	$ 1,803,999	$ 1,722,785	$ 1,803,999
Total other comprehensive loss, net of tax	14,500	13,780	27,092	(42,341)	28,280	(15,249)
Balance, end of period	2,184,272	1,976,386	1,623,705	1,691,983	2,184,272	1,623,705
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(469,637)	(483,417)	(579,290)	(536,949)	(483,417)	(536,949)
Other comprehensive income, before reclassifications	15,296		52,385		(52,515)	(21,608)
Income tax expense	(3,301)		(7,299)		7,527	2,335
Net other comprehensive income (loss) before reclassifications	11,995		45,086		(44,988)	(19,273)
Total reclassifications before tax	3,859		(22,964)		95,202	5,545
Income tax benefit (expense)	(1,354)		4,970		(21,934)	(1,521)
Net reclassifications	2,505		(17,994)		73,268	4,024
Total other comprehensive loss, net of tax	14,500	13,780	27,092	(42,341)	28,280	(15,249)
Balance, end of period	(455,137)	(469,637)	(552,198)	(579,290)	(455,137)	(552,198)
Foreign currency translation adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(24,927)	(7,589)	(75,268)	(40,813)	(7,589)	(40,813)
Other comprehensive income, before reclassifications	1,722		22,056		(15,352)	(13,765)
Income tax expense	(307)		(613)		(571)	753
Net other comprehensive income (loss) before reclassifications	1,415		21,443		(15,923)	(13,012)
Total reclassifications before tax	0		0		0	0
Income tax benefit (expense)	0		0		0	0
Net reclassifications	0		0		0	0
Total other comprehensive loss, net of tax	1,415		21,443		(15,923)	(13,012)
Balance, end of period	(23,512)	(24,927)	(53,825)	(75,268)	(23,512)	(53,825)
Derivative financial instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(28,586)	(46,116)	(34,431)	(14,586)	(46,116)	(14,586)
Other comprehensive income, before reclassifications	13,574		30,329		(37,163)	(7,843)
Income tax expense	(2,994)		(6,686)		8,098	1,582
Net other comprehensive income (loss) before reclassifications	10,580		23,643		(29,065)	(6,261)
Total reclassifications before tax	(13,898)		(38,592)		59,688	(25,711)
Income tax benefit (expense)	2,816		8,640		(13,595)	5,818
Net reclassifications	(11,082)		(29,952)		46,093	(19,893)
Total other comprehensive loss, net of tax	(502)		(6,309)		17,028	(26,154)
Balance, end of period	(29,088)	(28,586)	(40,740)	(34,431)	(29,088)	(40,740)
Pension and postretirement benefit plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(416,124)	(429,712)	(469,591)	(481,550)	(429,712)	(481,550)
Other comprehensive income, before reclassifications	0		0		0	0
Income tax expense	0		0		0	0
Net other comprehensive income (loss) before reclassifications	0		0		0	0
Total reclassifications before tax	17,757		15,628		35,514	31,256
Income tax benefit (expense)	(4,170)		(3,670)		(8,339)	(7,339)
Net reclassifications	13,587		11,958		27,175	23,917
Total other comprehensive loss, net of tax	13,587		11,958		27,175	23,917
Balance, end of period	(402,537)	$ (416,124)	(457,633)	$ (469,591)	(402,537)	(457,633)
Pension and postretirement benefit plans - Prior service credits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Total reclassifications before tax	(893)		(867)		(1,786)	(1,734)
Pension and postretirement benefit plans - Actuarial losses
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Total reclassifications before tax	$ 18,650		$ 16,495		$ 37,300	$ 32,990