Pension and Postretirement Benefit Obligations - Components of Net Periodic Pension Cost (Detail) - Pension Plans - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2021	Mar. 29, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1,863	$ 1,659
Interest cost	2,453	2,760
Expected return on plan assets	(3,250)	(3,383)
Recognized net actuarial loss	1,219	1,189
Amortization of prior service cost	1	5
Net periodic pension/postretirement benefit cost	$ 2,286	$ 2,230