Accumulated Other Comprehensive Income (Loss) - Changes in AOCI by Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	$ 801,060
Other comprehensive income (loss) before reclassifications	3,274	$ 505
Amounts reclassified from AOCI	(1,738)	13,382
Balance at end of year	1,256,963	801,060
Accumulated other comprehensive loss
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	(54,883)	(68,770)
Balance at end of year	(53,347)	(54,883)
Cumulative Translation Adjustment
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	(37,339)	(46,198)
Other comprehensive income (loss) before reclassifications	(4,964)	8,859
Amounts reclassified from AOCI	0	0
Balance at end of year	(42,303)	(37,339)
Unrealized Gain (Loss) on Derivatives
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	984	476
Other comprehensive income (loss) before reclassifications	2,361	(4,583)
Amounts reclassified from AOCI	(2,542)	5,091
Balance at end of year	803	984
Pension/ OPEB Liability Adjustment
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	(17,203)	(21,855)
Other comprehensive income (loss) before reclassifications	4,899	(3,639)
Amounts reclassified from AOCI	804	8,291
Balance at end of year	(11,500)	(17,203)
Attributable to Unconsol. Affiliates
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	(1,325)	(1,193)
Other comprehensive income (loss) before reclassifications	978	(132)
Amounts reclassified from AOCI	0	0
Balance at end of year	$ (347)	$ (1,325)