Supplemental Stockholders' Equity Information - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2022	Jun. 27, 2021	Jun. 26, 2022	Jun. 27, 2021
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 1,495,076	$ 1,355,462	$ 1,540,725	$ 1,328,111
Other comprehensive loss before reclassifications, before tax			(15,443)
Amounts reclassified from accumulated other comprehensive loss, before tax			10,124
Income tax (benefit)/expense	(104)	1,756	(1,484)	2,465
Other comprehensive (loss)/income, net of tax	(100)	4,809	(3,835)	6,737
Balance, end of period	1,540,134	1,418,787	1,540,134	1,418,787
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			3,754
Other comprehensive loss before reclassifications, before tax			(5,616)
Amounts reclassified from accumulated other comprehensive loss, before tax			0
Income tax (benefit)/expense			(1,564)
Other comprehensive (loss)/income, net of tax			(4,052)
Balance, end of period	(298)		(298)
Funded Status of Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			(385,680)
Other comprehensive loss before reclassifications, before tax			0
Amounts reclassified from accumulated other comprehensive loss, before tax			10,124
Income tax (benefit)/expense			2,717
Other comprehensive (loss)/income, net of tax			7,407
Balance, end of period	(378,273)		(378,273)
Net Unrealized Loss on Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			(1,276)
Other comprehensive loss before reclassifications, before tax			(9,827)
Amounts reclassified from accumulated other comprehensive loss, before tax			0
Income tax (benefit)/expense			(2,637)
Other comprehensive (loss)/income, net of tax			(7,190)
Balance, end of period	(8,466)		(8,466)
Total Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(386,937)	(408,253)	(383,202)	(410,181)
Other comprehensive (loss)/income, net of tax	(100)	4,809	(3,835)	6,737
Balance, end of period	$ (387,037)	$ (403,444)	$ (387,037)	$ (403,444)