Retirement Benefits (Tables)

12 Months Ended

Dec. 31, 2015

Defined Benefit Pension Plans

Defined Benefit Plans and Other Postretirement Benefit Plans

Schedule of components of net periodic pension expense

	U.S. Pension Plan									Non-U.S. Pension Plans
	Year Ended December 31,									Year Ended December 31,
(in thousands)	2015			2014			2013			2015			2014			2013
Service cost	$	6,800		$	3,800		$	6,453		$	20,517		$	16,217		$	15,390
Interest cost		16,116			31,675			29,100			26,511			34,536			32,176
Expected return on assets		(19,711	)		(30,105	)		(30,975	)		(49,066	)		(48,077	)		(46,420	)
Amortization of prior service cost/(credits)		867			750			103			(814	)		—			—
Recognized net actuarial loss		9,714			4,435			6,039			7,681			7,738			6,788
Loss on settlement/(gain on curtailment)		250,946			—			(309	)		390			—			—
Net periodic pension expense	$	264,732		$	10,555		$	10,411		$	5,219		$	10,414		$	7,934

Schedule of assumptions for determining projected benefit obligation at year end and net periodic cost for year

	U.S. Pension Plan						Non-U.S. Pension Plans
	December 31,						December 31,
	2015		2014		2013		2015		2014		2013
For determining projected benefit obligation at year-end:
Discount rates		N/A		1.95%		4.95%		2.35-5.50%		2.20-5.00%		3.55-5.50%
Rates of increase in compensation levels		N/A		N/A		N/A		2.25-7.00%		2.25-8.00%		2.25-9.00%
For determining net periodic cost for the year:
Discount rates		1.95%		4.95%		4.05%		2.20-5.00%		3.55-5.00%		3.60-6.00%
Rates of increase in compensation levels		N/A		N/A		N/A		2.25-8.00%		2.25-9.00%		2.25-9.00%
Expected long-term rates of return on assets		2.95%		4.55%		4.25%		4.90-7.00%		4.75-7.00%		5.00-7.00%

Schedule of target allocations and weighted average actual allocations of plan assets

		U.S. Plan Assets December 31,			Non-U.S. Plan Assets December 31,
	Target Allocation	2015	2014	Target Allocation	2015	2014
Asset category:
Debt securities	95% - 100%	N/A	93%	65% - 75%	70%	71%
Equity securities	0% - 5%	N/A	2%	20% - 30%	27%	25%
Other	0% - 5%	N/A	5%	0% - 10%	3%	4%
Total		N/A	100%		100%	100%

Schedule of plan assets and liabilities of defined benefit pension plans, measured at fair value on a recurring basis

U.S. Pension Plan

	December 31, 2015								December 31, 2014
	Fair Value Hierarchy								Fair Value Hierarchy
(in thousands)	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Assets:
Equity securities:
Common stock	$	—	$	—	$	—	$	—	$	19	$	19	$	—	$	—
Limited Partnerships		—		—		—		—		12,393		—		—		12,393
Debt securities:
Common or collective trusts		—		—		—		—		698,193		—		698,193		—
Other:
Common or collective trusts — money market funds		—		—		—		—		40,640		—		40,640		—
Plan assets measured at fair value, net	$	—	$	—	$	—	$	—	$	751,245	$	19	$	738,833	$	12,393
Plan assets not measured at fair value, net		—								23
Total plan assets, net	$	—							$	751,268

Non-U.S. Pension Plans

	December 31, 2015										December 31, 2014
	Fair Value Hierarchy										Fair Value Hierarchy
(in thousands)	Total			Level 1		Level 2			Level 3		Total			Level 1		Level 2			Level 3
Assets:
Equity securities:
Common stock	$	2,150		$	2,150	$	—		$	—	$	54,890		$	54,890	$	—		$	—
Common or collective trusts		242,028			—		242,028			—		200,701			—		200,701			—
Debt securities:
Common or collective trusts		318,103			—		318,103			—		378,569			—		378,569			—
Corporate bonds		147,559			—		147,559			—		149,152			—		149,152			—
Government securities		169,433			—		169,433			—		195,305			—		195,305			—
Other:
Common or collective trusts		29,265			—		29,265			—		37,092			—		30,441			6,651
Other assets		16,489			—		16,489			—		13,006			—		13,006			—
Liabilities:
Foreign currency contracts and other		(19,211	)		—		(19,211	)		—		(11,038	)		—		(11,038	)		—
Plan assets measured at fair value, net	$	905,816		$	2,150	$	903,666		$	—	$	1,017,677		$	54,890	$	956,136		$	6,651
Plan assets not measured at fair value, net		14,661										14,456
Total plan assets, net	$	920,477									$	1,032,133

Reconciliation of beginning and ending balances of fair value measurements using significant unobservable inputs (Level 3)

	U.S. Pension Plan						Non-U.S. Pension Plans
(in thousands)	2015			2014			2015			2014
Balance at beginning of year	$	12,393		$	17,546		$	$ 6,651		$	7,742
Actual return on plan assets:
Assets still held at reporting date		—			(2,454	)		—			(886	)
Assets sold during the period		136			124			(344	)		3
Purchases		—			—			—			—
Sales		(12,529	)		(2,823	)		(6,307	)		(208	)
Settlements		—			—			—			—
Balance at end of year	$	—		$	12,393		$	—		$	6,651

Schedule of change in projected benefit obligation, plan assets and funded status of U.S and non-U.S plans

	U.S. Pension Plan						Non-U.S. Pension Plans
	December 31,						December 31,
(in thousands)	2015			2014			2015			2014
Change in projected benefit obligation
Benefit obligation at beginning of year	$	815,368		$	686,977		$	1,005,138		$	908,530
Service cost		6,800			3,800			20,517			16,217
Interest cost		16,116			31,675			26,511			34,536
Employee contributions		—			—			—			4,448
Currency translation		—			—			(76,801	)		(110,188	)
Actuarial (gain) loss		(40,050	)		146,643			(32,104	)		196,021
Plan amendments		—			2,236			—			(17,921	)
Benefits paid		(22,068	)		(52,199	)		(31,711	)		(26,505	)
Settlements		(768,185	)		—			—			—
Other		(7,981	)		(3,764	)		—			—
Projected benefit obligation at end of year		—			815,368			911,550			1,005,138
Change in plan assets
Plan assets at beginning of year		751,268			708,730			1,032,133			945,837
Actual return on plan assets		(8,034	)		62,501			(8,349	)		191,929
Company contributions		55,000			36,000			3,446			26,816
Employee contributions		—			—			—			4,448
Currency translation		—			—			(75,042	)		(110,392	)
Benefits paid		(22,068	)		(52,199	)		(31,711	)		(26,505	)
Settlements		(768,185	)		—			—			—
Other		(7,981	)		(3,764	)		—			—
Plan assets at end of year		—			751,268			920,477			1,032,133
Funded Status — (Under)/overfunded	$	—		$	(64,100	)	$	8,927		$	26,995

Schedule of amounts recognized in Consolidated Balance Sheet

Amounts recognized in the Consolidated Balance Sheet
Pension assets included in other assets	$	—	$	—		$	84,328		$	82,820
Pension liabilities included in noncurrent liabilities		—		(64,100	)		(75,401	)		(55,825	)
Accumulated other comprehensive loss (pre-tax)	$	—	$	273,832		$	247,541		$	250,399

Defined Benefit Non-U.S. Pension Plans

Defined Benefit Plans and Other Postretirement Benefit Plans

Schedule of expected benefit payments for non-U.S defined benefit pension plans

(in thousands)	Non-U.S. Pension Plans
Year Ended December 31,
2016	$	30,892
2017		31,897
2018		32,511
2019		34,491
2020		36,390
2021 — 2025		193,659

Postretirement Benefit

Defined Benefit Plans and Other Postretirement Benefit Plans

Schedule of components of net periodic pension expense

	Year Ended December 31,
(in thousands)	2015		2014		2013
Service cost	$	—	$	—	$	—
Interest cost		335		388		351
Expected return on assets		—		—		—
Amortization of prior service cost		—		—		—
Recognized net actuarial loss		40		151		341
Net periodic postretirement benefit cost	$	375	$	539	$	692

Schedule of change in accumulated postretirement benefit obligation

	Year Ended December 31,
(in thousands)	2015			2014
Change in accumulated postretirement benefit obligation
Benefit obligation at beginning of year	$	11,310		$	12,629
Service cost		—			—
Interest cost		335			388
Employee contributions		543			356
Actuarial (gain) loss		(1,722	)		(252	)
Benefits paid		(1,735	)		(1,811	)
Benefit obligation at end of year	$	8,731		$	11,310
Funded status — (Under)/overfunded	$	(8,731	)	$	(11,310	)