Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2016

Defined benefit pension plans

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

	Three Months Ended June 30,												Six Months Ended June 30,
	U.S. Plan						Non-U.S. Plans						U.S. Plan						Non-U.S. Plans
	2016			2015			2016			2015			2016			2015			2016			2015
Service Cost	$	3,479		$	3,916		$	1,405		$	1,663		$	6,957		$	7,831		$	2,778		$	3,351
Interest Cost	5,761			5,791			1,394			1,476			11,523			11,582			2,769			2,962
Expected return on plan assets	(9,699		)	(10,393		)	(1,974		)	(2,011		)	(19,397		)	(20,786		)	(3,922		)	(4,030		)
Amortization:
Prior service cost	183			224			(100		)	22			366			448			(199		)	45
Recognized actuarial loss	1,610			3,155			675			661			3,219			6,310			1,340			1,336
Transition obligation	—			—			1			9			—			—			2			18
Curtailments, special termination benefits, and settlements	—			—			—			1						810						3
Net periodic expense	$	1,334		$	2,693		$	1,401		$	1,821		$	2,668		$	6,195		$	2,768		$	3,685

Supplemental Employee Retirement Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

	Three Months Ended June 30,					Six Months Ended June 30,
	2016			2015		2016			2015
Service Cost	$	739		$	935	$	1,479		$	1,870
Interest Cost	1,317			1,265		2,634			2,531
Amortization:
Prior service cost	1,566			1,732		3,133			3,464
Recognized actuarial (gain) loss	(140		)	72		(280		)	143
Net periodic expense	$	3,482		$	4,004	$	6,966		$	8,008

Post-Retirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Service Cost	$	13		$	40		$	26		$	81
Interest Cost	104			128			209			256
Amortization:
Prior service cost	(35		)	(93		)	(71		)	(186		)
Recognized actuarial gain	(59		)	(7		)	(118		)	(15		)
Net periodic expense	$	23		$	68		$	46		$	136