Other Comprehensive Income (Loss) - Schedule of Components of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Other Comprehensive Income (Loss) [Line Items]
Pre-tax	$ (24,414)	$ 11,296	$ (30,210)
Tax	47	385	(1,302)
Total change in other comprehensive (loss) income	(24,461)	10,911	(28,908)
Pension and postretirement liability and reclassification adjustments
Other Comprehensive Income (Loss) [Line Items]
Pre-tax	924	1,532	(4,563)
Tax	47	385	(1,302)
Total change in other comprehensive (loss) income	877	1,147	(3,261)
Unrealized gain (loss) on investments
Other Comprehensive Income (Loss) [Line Items]
Pre-tax	0	(974)	(815)
Tax	0	0	0
Total change in other comprehensive (loss) income	0	(974)	(815)
Foreign currency translation adjustment
Other Comprehensive Income (Loss) [Line Items]
Pre-tax	(25,338)	10,738	(24,832)
Tax	0	0	0
Total change in other comprehensive (loss) income	$ (25,338)	$ 10,738	$ (24,832)