Pensions and Other Employee Benefit Plans

3 Months Ended

Mar. 31, 2018

Pensions and Other Employee Benefit Plans [Abstract]

Pensions and Other Employee Benefit Plans

11. Pensions and Other Employee Benefit Plans

The following tables provide the components of net periodic cost for our qualified retirement plan (the “Pension Benefits”) and health care and life insurance benefits for retired employees and dependents (the “Other Benefits”) for the three months ended March 31, 2018 and 2017 (in thousands):

	Pension Benefits Three Months Ended March 31,				Other Benefits Three Months Ended March 31,
	2018		2017		2018		2017
Service cost (1)	$	187	$	173	$	—	$	—
Interest cost (2)		464		486		4		5
Expected return on plan assets (2)		(657)		(532)		—		—
Amortization of net actuarial loss (2)		263		232		—		1
Amortization of prior service credits (2)		—		—		6		6
Net periodic cost	$	257	$	359	$	10	$	12

⁽¹⁾ Included in general and administrative expenses.

⁽²⁾ Included in other expense.