Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2022

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The components of net periodic benefit costs for the defined benefit plans and other postretirement benefits for the three and six months ended June 30, 2022, and 2021 are as follows:

	Three months ended June 30,			Six months ended June 30,
	2022		2021	2022		2021
Service cost	$	2,652	2,688	$	5,304	5,423
Interest cost	2,861		2,530	5,721		5,110
Expected return on assets	(5,045)		(4,742)	(10,088)		(9,494)
Unrecognized actuarial loss	1,200		1,794	2,364		3,574
Amortization of prior service cost	4		13	8		25
Total	$	1,672	2,283	$	3,309	4,638