Benefit Plans - Net Periodic Pension Cost (Details) - Pension Plans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 29, 2019
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 7,529	$ 6,331	$ 4,853
Interest cost	9,846	10,957	12,299
Expected return on plan assets	(13,000)	(13,617)	(10,290)
Recognized net actuarial loss	4,954	4,619	3,688
Amortization of prior service cost	3	19	22
Net periodic pension/postretirement benefit cost	$ 9,332	$ 8,309	$ 10,572