Pension and Postretirement Benefits

3 Months Ended

Mar. 31, 2018

General Discussion Of Pension And Other Postretirement Benefits [Abstract]

Pension And Other Postretirement Benefits Disclosure [Text Block]

Note 8 – Pension and Other Postretirement Benefits

The components of net periodic benefit cost for the three months endedMarch 31, 2018 and 2017 are as follows:

	Three Months Ended March 31,
					Other
	Pension Benefits				Postretirement Benefits
		2018		2017		2018		2017
Service cost	$	988	$	918	$	2	$	3
Interest cost		1,049		1,008		33		33
Expected return on plan assets		(1,290)		(1,326)		—		—
Actuarial loss amortization		800		869		15		5
Prior service cost amortization		(31)		(23)		—		—
Total net periodic benefit cost	$	1,516	$	1,446	$	50	$	41

Employer Contributions

The Company previously disclosed in its financial statements for the year ended December 31, 2017, that it expected to make minimum cash contributions of$9.9 million to its pension plans and$0.4 million to its other postretirement benefit plans in 2018. As of March 31, 2018,$3.9 million and$0.1 million of contributions have been made to the Company’s pension plans and its postretirement benefit plans, respectively.