XML 126 R89.htm IDEA: XBRL DOCUMENT v3.7.0.1
Benefit Plans - Components of Net Periodic Pension Cost (Detail) - Pension Plans [Member] - USD ($)
$ in Thousands
3 Months Ended
Apr. 02, 2017
Apr. 03, 2016
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 150 $ 28
Interest cost 2,979 3,031
Expected return on plan assets (3,399) (3,458)
Recognized net actuarial loss 807 741
Amortization of prior service cost 7 7
Net periodic pension cost $ 544 $ 349