Pension Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2020

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The following table presents the components of pension expense for the Company's significant pension plans. The Company's other pension and post-retirement benefit plans are not significant individually or in the aggregate.

	Three Months Ended March 31,
	2020			2019
Interest cost	$	3,275		$	4,449
Expected return on plan assets	(5,574		)	(4,964		)
Amortization of actuarial loss	2,849			2,484
Total	$	550		$	1,969