Pensions and Postretirement Benefits Other than Pensions (Tables)

9 Months Ended

Sep. 30, 2017

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Costs

The following tables disclose the amount of net periodic benefit costs for the three and nine months ended September 30, 2017 and 2016 for the Company’s defined benefit plans and other postretirement benefits:

	Pension Benefits - Domestic
	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Components of net periodic benefit cost:
Service cost	$	2,465		$	2,403		$	7,395		$	7,210
Interest cost	9,813			10,617			29,439			31,850
Expected return on plan assets	(13,515		)	(13,391		)	(40,544		)	(40,175		)
Amortization of actuarial loss	9,281			9,576			27,842			28,729
Pension settlement charge	$	—		$	11,462		$	—		$	11,462
Net periodic benefit cost	$	8,044		$	20,667		$	24,132		$	39,076

	Pension Benefits - International
	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Components of net periodic benefit cost:
Service cost	$	—		$	2		$	—		$	7
Interest cost	2,927			3,417			8,557			10,877
Expected return on plan assets	(2,860		)	(2,744		)	(8,362		)	(8,736		)
Amortization of actuarial loss	1,384			1,244			4,045			3,961
Net periodic benefit cost	$	1,451		$	1,919		$	4,240		$	6,109

	Other Postretirement Benefits
	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Components of net periodic benefit cost:
Service cost	$	501		$	537		$	1,502		$	1,611
Interest cost	2,515			2,705			7,547			8,115
Amortization of prior service credit	(141		)	(141		)	(424		)	(424		)
Net periodic benefit cost	$	2,875		$	3,101		$	8,625		$	9,302