Accumulated Other Comprehensive Income (Loss) - Changes in AOCI by Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	$ 536,028
Total other comprehensive (loss) income, net	(30,074)	$ 17,272	$ (14,541)
Balance at end of year	563,260	536,028
Cumulative Translation Adjustment [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	(38,163)	(49,965)
Other comprehensive income (loss) before reclassifications	(16,094)	15,579
Amounts reclassified from AOCI	0	(3,777)
Total other comprehensive (loss) income, net	(16,094)
Reclassification of stranded effects of the Act	0
Balance at end of year	(54,257)	(38,163)	(49,965)
Unrealized Losses on Derivatives [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	847	(300)
Other comprehensive income (loss) before reclassifications	(802)	(389)
Amounts reclassified from AOCI	(371)	1,536
Total other comprehensive (loss) income, net	(1,173)
Reclassification of stranded effects of the Act	112
Balance at end of year	(214)	847	(300)
Minimum Pension/OPEB Liability Adjustment [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	(20,610)	(23,046)
Other comprehensive income (loss) before reclassifications	(3,642)	1,394
Amounts reclassified from AOCI	303	1,042
Total other comprehensive (loss) income, net	(3,339)
Reclassification of stranded effects of the Act	(1,018)
Balance at end of year	(24,967)	(20,610)	(23,046)
Unrealized Gains on Equity Investments [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	0	380
Other comprehensive income (loss) before reclassifications	0	(1)
Amounts reclassified from AOCI	0	(379)
Total other comprehensive (loss) income, net	0
Reclassification of stranded effects of the Act	0
Balance at end of year	0	0	380
Accumulated Other Comprehensive Income Attributable to Unconsolidated Affiliates [Member]
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	6,870	5,975
Other comprehensive income (loss) before reclassifications	(8,686)	895
Amounts reclassified from AOCI	0	0
Total other comprehensive (loss) income, net	(8,686)
Reclassification of stranded effects of the Act	1,462
Balance at end of year	(354)	6,870	5,975
Accumulated other comprehensive loss:
Changes in accumulated other comprehensive income [Roll Forward]
Balance at beginning of year	(51,056)	(66,956)	(54,990)
Other comprehensive income (loss) before reclassifications	(29,224)	17,478
Amounts reclassified from AOCI	(68)	(1,578)
Total other comprehensive (loss) income, net	(29,292)	15,900	(11,966)
Reclassification of stranded effects of the Act	556
Balance at end of year	$ (79,792)	$ (51,056)	$ (66,956)