Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Changes in accumulated other comprehensive income [Roll Forward]
Beginning balance		$ (42,923)	$ (10,819)
Other comprehensive income (loss) before reclassifications		(17,584)	(38,839)
Amounts reclassified from AOCI		5,517	6,735
Ending balance		(54,990)	(42,923)	$ (10,819)
Reclassification Adjustments out of AOCI [Abstract]
Cost of goods sold		(1,809,702)	(2,043,719)	(1,862,089)
Depreciation expense		(30,556)	(30,205)	(30,946)
Interest expense		(7,667)	(5,740)	(3,990)
Net of tax and noncontrolling interest	[1]	(1,056)	(2,499)	1,713
Selling, general, and administrative expense		(130,358)	(131,740)	(134,914)
Cumulative Translation Adjustment [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Beginning balance		(7,076)	(462)
Other comprehensive income (loss) before reclassifications		(17,697)	(12,613)
Amounts reclassified from AOCI		0	5,999
Ending balance		(24,773)	(7,076)	(462)
Unrealized (Losses)/Gains on Derivatives [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Beginning balance		(953)	1,546
Other comprehensive income (loss) before reclassifications		(4,604)	(2,766)
Amounts reclassified from AOCI		3,548	267
Ending balance		(2,009)	(953)	1,546
Unrealized (Losses)/Gains on Derivatives [Member] | Amount Reclassified from AOCI [Member]
Reclassification Adjustments out of AOCI [Abstract]
Cost of goods sold		4,486	328	5,618
Depreciation expense		0	0	54
Interest expense		372	0	0
Income tax expense		(1,310)	(61)	(1,857)
Net of tax		3,548	267	3,815
Noncontrolling interest		0	0	0
Net of tax and noncontrolling interest		3,548	267	3,815
Minimum Pension/OPEB Liability Adjustment [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Beginning balance		(35,164)	(12,158)
Other comprehensive income (loss) before reclassifications		4,766	(23,475)
Amounts reclassified from AOCI		1,969	469
Ending balance		(28,429)	(35,164)	(12,158)
Minimum Pension/OPEB Liability Adjustment [Member] | Amount Reclassified from AOCI [Member]
Reclassification Adjustments out of AOCI [Abstract]
Selling, general, and administrative expense		2,688	541	3,844
Income tax expense		(719)	(72)	(1,326)
Net of tax		1,969	469	2,518
Noncontrolling interest		0	0	0
Net of tax and noncontrolling interest		1,969	469	2,518
Unrealized Gains on Equity Investments [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Beginning balance		270	255
Other comprehensive income (loss) before reclassifications		(49)	15
Amounts reclassified from AOCI		0	0
Ending balance		221	270	255
Loss Recognized Upon Sale of Business [Member] | Amount Reclassified from AOCI [Member]
Reclassification Adjustments out of AOCI [Abstract]
Gain on sale of assets		0	5,999	0
Income tax benefit		0	0	0
Net of tax		0	5,999	0
Noncontrolling interest		0	0	0
Net of tax and noncontrolling interest		$ 0	$ 5,999	$ 0

[1] Net of taxes of $575 in 2015, $1,362 in 2014, and $(962) in 2013