Defined Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2020

Retirement Benefits [Abstract]

Net Periodic Cost (Benefit)

The components of the combined net periodic expense (benefit) for our defined benefit pension plans are presented in the table below.

	Three Months Ended   March 31,
	2020			2019
Expected return on plan assets, net of expenses	$	(3,072	)	$	(2,693	)
Interest cost on projected benefit obligation	1,252			1,618
Net amortization and deferral	1,330			1,406
Net periodic expense (benefit)	$	(490	)	$	331