Recent Accounting Pronouncements - Summary of Reclassification of Tax Effects to Retained Earnings from AOCI (Detail) - USD ($) $ in Thousands		12 Months Ended
	Dec. 31, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Pension and postretirement plans		$ 8,474	$ (897)	$ 2,238
Retained Earnings
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Pension and postretirement plans	$ (17,097)
Hedged financial instruments	(1,709)
Total reclassifications of stranded income tax effects to retained earnings from AOCI	(18,806)
AOCI
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Pension and postretirement plans	17,097
Hedged financial instruments	1,709
Total reclassifications of stranded income tax effects to retained earnings from AOCI	$ 18,806