Pension and Other Post-Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2017

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

The Company's net periodic benefit costs for its defined benefit pension plans and post-retirement healthcare plans for both continuing and discontinued operations are as follows (in thousands):

	Three Months Ended September 30,												Nine Months Ended September 30,
	Pension Plans						Post-Retirement Healthcare Plan						Pension Plans						Post-Retirement Healthcare Plan
	2017			2016			2017			2016			2017			2016			2017			2016
Service cost	$	—		$	—		$	39		$	31		$	—		$	—		$	117		$	93
Interest cost	8,396			8,968			36			42			25,946			26,904			108			126
Expected return on plan assets	(10,520		)	(10,264		)	—			—			(32,379		)	(30,792		)	—			—
Settlement charge	12,923			—			—			—			12,923			—			—			—
Amortization of prior service cost	—			—			(13		)	(26		)	—			—			(39		)	(78		)
Amortization of net loss	1,944			3,368			71			40			5,819			10,104			213			120
Net periodic benefit cost	$	12,743		$	2,072		$	133		$	87		$	12,309		$	6,216		$	399		$	261