Benefit Plans - Net Periodic Pension Cost (Benefit) (Detail) - Pension Plans [Member] - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 461	$ 116	$ 109
Interest cost	12,182	11,875	11,603
Expected return on plan assets	(13,822)	(13,541)	(13,775)
Amortization of prior service cost	28	35	36
Recognized net actuarial loss	3,031	3,230	1,743
Net periodic pension cost (benefit)	$ 1,880	$ 1,715	$ (284)