Pensions and Postretirement Benefits Other than Pensions

6 Months Ended

Jun. 30, 2017

Compensation and Retirement Disclosure [Abstract]

Pensions and Postretirement Benefits Other than Pensions

Pensions and Postretirement Benefits Other than Pensions

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

	Pension Benefits - Domestic
	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Components of net periodic benefit cost:
Service cost	$	2,465		$	2,403		$	4,930		$	4,806
Interest cost	9,813			10,617			19,626			21,233
Expected return on plan assets	(13,514		)	(13,391		)	(27,029		)	(26,783		)
Amortization of actuarial loss	9,280			9,576			18,561			19,152
Net periodic benefit cost	$	8,044		$	9,205		$	16,088		$	18,408

	Pension Benefits - International
	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Components of net periodic benefit cost:
Service cost	$	—		$	2		$	—		$	4
Interest cost	2,860			3,737			5,630			7,461
Expected return on plan assets	(2,795		)	(3,002		)	(5,502		)	(5,992		)
Amortization of actuarial loss	1,351			1,361			2,661			2,717
Net periodic benefit cost	$	1,416		$	2,098		$	2,789		$	4,190

	Other Postretirement Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Components of net periodic benefit cost:
Service cost	$	501		$	537		$	1,002		$	1,074
Interest cost	2,516			2,705			5,031			5,410
Amortization of prior service credit	(142		)	(142		)	(283		)	(283		)
Net periodic benefit cost	$	2,875		$	3,100		$	5,750		$	6,201