Benefit Plans - Net Periodic Pension Cost (Benefit) (Detail) - Pension Plans [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5,484	$ 2,553	$ 461
Interest cost	11,350	11,938	12,182
Expected return on plan assets	(15,415)	(13,597)	(13,822)
Recognized net actuarial loss	3,830	3,402	3,031
Amortization of prior service cost	25	28	28
Net periodic pension cost (benefit)	$ 5,274	$ 4,324	$ 1,880