Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2020

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Income for the Pension Plans

Net periodic benefit income from the Company's pension plans included the following components for the three months ended March 31:

	Pension Benefits
	2020		2019
Service cost	$	2,982	$	2,390
Interest cost	20,925		24,348
Expected return on plan assets	(38,523)		(38,527)
Amortization of prior service credit	173		(17)
Amortization of actuarial loss	11,122		7,749
Net periodic benefit income	$	(3,321)	$	(4,057)