Other Comprehensive Earnings (Loss) - Schedule of Accumulated Other Comprehensive Earnings (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period			$ (184,220)	$ (294,514)
Current period other comprehensive earnings (loss)	$ (13,356)	$ 109,164	(123,908)	121,339
Balance at the end of the period	(308,128)	(173,175)	(308,128)	(173,175)
Pension and Postretirement Amounts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period			(36,129)	(143,134)
Current period other comprehensive earnings (loss)			550	110,740
Balance at the end of the period	(35,579)	(32,394)	(35,579)	(32,394)
Gains (Losses) on Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period			(5,232)	1,549
Current period other comprehensive earnings (loss)			12,382	(283)
Balance at the end of the period	7,150	1,266	7,150	1,266
Unrealized Holding Gains (Losses) on Available- for-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period			(230)	(744)
Current period other comprehensive earnings (loss)			2,124	555
Balance at the end of the period	1,894	(189)	1,894	(189)
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at the beginning of the period			(142,629)	(152,185)
Current period other comprehensive earnings (loss)			(138,964)	10,327
Balance at the end of the period	$ (281,593)	$ (141,858)	$ (281,593)	$ (141,858)