Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2017

Defined benefit pension plans

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

	Three Months Ended March 31,
	U.S. Plan						Non-U.S. Plans
	2017			2016			2017			2016
Service cost	$	3,021		$	3,478		$	1,317		$	1,373
Interest cost	5,429			5,762			1,264			1,375
Expected return on plan assets	(9,953		)	(9,698		)	(1,804		)	(1,948		)
Amortization:
Prior service cost (credit)	107			183			(110		)	(99		)
Recognized actuarial loss	1,396			1,609			841			665
Transition obligation	—			—			1			1
Net periodic expense	$	—		$	1,334		$	1,509		$	1,367

Supplemental Employee Retirement Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

	Three Months Ended March 31,
	2017			2016
Service cost	$	618		$	740
Interest cost	1,019			1,317
Amortization:
Prior service cost	1,102			1,567
Recognized actuarial gain	(298		)	(140		)
Net periodic expense	$	2,441		$	3,484

Post-Retirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

	Three Months Ended March 31,
	2017			2016
Service cost	$	8		$	13
Interest cost	73			105
Amortization:
Prior service cost (credit)	2			(36		)
Recognized actuarial gain	(40		)	(59		)
Net periodic expense	$	43		$	23