Supplemental Stockholders' Equity Information - Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 25, 2022	Sep. 30, 2023	Sep. 25, 2022
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	$ 1,607,220	$ 1,540,134	$ 1,599,972	$ 1,540,725
Other comprehensive income before reclassifications, before tax			4,785
Amounts reclassified from accumulated other comprehensive loss, before tax			4,656
Income tax expense			2,463
Net current-period other comprehensive income, net of tax	813	(3,004)	6,978	(6,839)
Balance, end of period	1,655,240	1,542,358	1,655,240	1,542,358
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			(510)
Other comprehensive income before reclassifications, before tax			(1,199)
Amounts reclassified from accumulated other comprehensive loss, before tax			0
Income tax expense			(352)
Net current-period other comprehensive income, net of tax			(847)
Balance, end of period	(1,357)		(1,357)
Funded Status of Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			(348,947)
Other comprehensive income before reclassifications, before tax			0
Amounts reclassified from accumulated other comprehensive loss, before tax			4,656
Income tax expense			1,230
Net current-period other comprehensive income, net of tax			3,426
Balance, end of period	(345,521)		(345,521)
Net Unrealized Loss on Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period			(8,390)
Other comprehensive income before reclassifications, before tax			5,984
Amounts reclassified from accumulated other comprehensive loss, before tax			0
Income tax expense			1,585
Net current-period other comprehensive income, net of tax			4,399
Balance, end of period	(3,991)		(3,991)
Total Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning of period	(351,682)	(387,037)	(357,847)	(383,202)
Net current-period other comprehensive income, net of tax	813	(3,004)	6,978	(6,839)
Balance, end of period	$ (350,869)	$ (390,041)	$ (350,869)	$ (390,041)