Retirement Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2014

Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]

Weighted-average asset allocations by asset category of the U.S. and U.K. Pension Plans

Weighted-average asset allocations by asset category of the U.S. and U.K. Pension Plans as of December 31, 2014 are as follows:



Asset Category	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and Cash Equivalents	$	505	$	505	$	—	$	—
Mutual Funds:
U.S. Large-Cap	12,955		12,955		—		—
U.S. Small-Cap	4,004		4,004		—		—
International Equities	3,788		3,788		—		—
Fixed-Income Domestic	30,652		30,652		—		—
Investment Account held by Pension Plan ⁽¹⁾	9,989		—		—		9,989
Total	$	61,893	$	51,904	$	—	$	9,989


(1)	This category is comprised of investments in insurance contracts.

Weighted-average asset allocations by asset category of the U.S. and U.K. Pension Plans as of December 31, 2013 are as follows:



Asset Category	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and Cash Equivalents	$	746	$	746	$	—	$	—
Mutual Funds:
U.S. Large-Cap	20,597		20,597		—		—
U.S. Small-Cap	6,971		6,971		—		—
International Equities	6,328		6,328		—		—
Fixed-Income Domestic	17,755		17,755		—		—
Investment Account held by Pension Plan⁽¹⁾	9,733		—		—		9,733
Total	$	62,130	$	52,397	$	—	$	9,733


(1)	This category is comprised of investments in insurance contracts.

Reconciliation of beginning and ending balances of Level 3 plan assets

A reconciliation of the beginning and ending balances of the Level 3 investments of our U.K. Pension Plan during the years ended are as follows:



	2014			2013
Fair value at beginning of year	$	9,733		$	8,855
Purchases, sales, issuances and settlements, net	(96		)	74
Net gain	974			601
Foreign currency	(622		)	203
Fair value at end of year	$	9,989		$	9,733

Weighted-average assumptions used to determine benefit obligations and net periodic benefit costs

Weighted-average assumptions used to determine benefit obligations as of December 31 are as follows:



	U.S. Pension Benefits				Non-U.S. Pension Benefits				Postretirement Medical Benefits
	2014		2013		2014		2013		2014		2013
Discount rate	3.76	%	4.63	%	3.38	%	4.33	%	3.39	%	4.10	%
Rate of compensation increase	3.00	%	3.00	%	3.50	%	4.50	%	—		—

Weighted-average assumptions used to determine net periodic benefit costs as of December 31 are as follows:



	U.S. Pension Benefits						Non-U.S. Pension Benefits						Postretirement Medical Benefits
	2014		2013		2012		2014		2013		2012		2014		2013		2012
Discount rate	4.63	%	3.79	%	4.39	%	4.33	%	4.41	%	4.94	%	4.10	%	3.27	%	4.20	%
Expected long-term rate of return on plan assets	5.70	%	6.50	%	7.70	%	5.60	%	4.70	%	4.80	%	—		—		—
Rate of compensation increase	3.00	%	3.00	%	3.00	%	4.50	%	4.50	%	4.60	%	—		—		—

Accumulated benefit obligations for all defined benefit plans

The accumulated benefit obligations as of December 31, for all defined benefit plans are as follows:



	2014		2013
U.S. Pension Plans	$	45,695	$	42,241
U.K. Pension Plan	10,658		9,803
German Pension Plan	1,027		897

Plans with accumulated benefit obligation in excess of plan assets

Information for our plans with an accumulated benefit obligation in excess of plan assets as of December 31 is as follows:



	2014		2013
Accumulated benefit obligation	$	13,872	$	12,778
Fair value of plan assets	9,989		9,733

Plans with projected benefit obligations in excess of plan assets

Information for our plans with a projected benefit obligation in excess of plan assets as of December 31 is as follows:



	2014		2013
Projected benefit obligation	$	14,207	$	13,481
Fair value of plan assets	9,989		9,733

Assumed healthcare cost trend rates

Assumed healthcare cost trend rates as of December 31 are as follows:



	2014		2013
Healthcare cost trend rate assumption for the next year	7.50	%	8.30	%
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)	5.00	%	5.00	%
Year that the rate reaches the ultimate trend rate	2031		2031

Effect of one-percentage-point change in assumed healthcare cost trends

To illustrate, a one-percentage-point change in assumed healthcare cost trends would have the following effects:



	1-Percentage- Point Decrease			1-Percentage- Point Increase
Effect on total of service and interest cost components	$	(46	)	$	52
Effect on postretirement benefit obligation	$	(981	)	$	1,113

Changes in benefit obligations and plan assets and funded status

Summaries related to changes in benefit obligations and plan assets and to the funded status of our defined benefit and postretirement medical benefit plans are as follows:



	U.S. Pension Benefits						Non-U.S. Pension Benefits						Postretirement Medical Benefits
	2014			2013			2014			2013			2014			2013
Change in benefit obligation:
Benefit obligation at beginning of year	$	43,653		$	48,824		$	11,238		$	10,011		$	13,186		$	14,090
Service cost	493			690			155			142			128			154
Interest cost	1,964			1,803			476			422			497			443
Plan participants' contributions	—			—			21			23			—			—
Actuarial loss (gain)	5,907			(4,901		)	1,421			668			591			(1,001		)
Foreign exchange	—			—			(815		)	265			—			—
Benefits paid	(1,706		)	(2,763		)	(482		)	(293		)	(1,110		)	(500		)
Settlement	(3,284		)	—			—			—			—			—
Benefit obligation at end of year	$	47,027		$	43,653		$	12,014		$	11,238		$	13,292		$	13,186
Change in fair value of plan assets and net accrued liabilities:
Fair value of plan assets at beginning of year	$	52,397		$	46,942		$	9,733		$	8,855		$	—		$	—
Actual return on plan assets	4,236			7,827			974			601			—			—
Employer contributions	242			391			365			343			1,110			500
Plan participants' contributions	—			—			21			23			—			—
Foreign exchange	—			—			(622		)	204			—			—
Benefits paid	(1,706		)	(2,763		)	(482		)	(293		)	(1,110		)	(500		)
Settlement	(3,284		)	—			—			—			—			—
Fair value of plan assets at end of year	51,885			52,397			9,989			9,733			—			—
Funded status at end of year	$	4,858		$	8,744		$	(2,025	)	$	(1,505	)	$	(13,292	)	$	(13,186	)
Amounts recognized in the Consolidated Balance Sheets consist of:
Noncurrent Other Assets	$	7,051		$	10,987		$	—		$	—		$	—		$	—
Current Liabilities	(185		)	(149		)	(37		)	(41		)	(947		)	(919		)
Long-Term Liabilities	(2,008		)	(2,094		)	(1,988		)	(1,464		)	(12,345		)	(12,267		)
Net accrued asset (liability)	$	4,858		$	8,744		$	(2,025	)	$	(1,505	)	$	(13,292	)	$	(13,186	)
Amounts recognized in Accumulated Other Comprehensive Loss consist of:
Prior service (cost) credit	$	(109	)	$	(152	)	$	—		$	—		$	—		$	6
Net actuarial loss	(5,993		)	(2,142		)	(1,682		)	(704		)	(2,178		)	(1,587		)
Accumulated Other Comprehensive Loss	$	(6,102	)	$	(2,294	)	$	(1,682	)	$	(704	)	$	(2,178	)	$	(1,581	)

Components of the net periodic benefit cost

The components of the net periodic benefit cost for the three years ended December 31 were as follows:



	U.S. Pension Benefits									Non-U.S. Pension Benefits									Postretirement Medical Benefits
	2014			2013			2012			2014			2013			2012			2014			2013			2012
Service cost	$	493		$	690		$	686		$	155		$	142		$	138		$	128		$	154		$	142
Interest cost	1,964			1,803			1,928			476			422			437			497			443			551
Expected return on plan assets	(2,683		)	(2,911		)	(2,279		)	(539		)	(402		)	(387		)	—			—			—
Amortization of net actuarial loss	147			1,751			1,131			9			9			—			—			201			57
Amortization of prior service cost (credit)	43			73			382			—			—			—			(6		)	(103		)	(580		)
Foreign currency	—			—			—			(61		)	21			16			—			—			—
Settlement credit	356			—			—			—			—			—			—			—			—
Net periodic benefit cost	$	320		$	1,406		$	1,848		$	40		$	192		$	204		$	619		$	695		$	170

Changes in accumulated other comprehensive loss

The changes in Accumulated Other Comprehensive Loss for the three years ended December 31 were as follows:



	U.S. Pension Benefits									Non-U.S. Pension Benefits								Postretirement Medical Benefits
	2014			2013			2012			2014			2013			2012		2014		2013			2012
Net actuarial loss (gain)	4,353			(9,817		)	2,355			987			467			244		591		(1,001		)	926
Amortization of prior service (cost) credit	(43		)	(73		)	(382		)	—			—			—		6		103			580
Amortization of net actuarial loss	(503		)	(1,751		)	(1,132		)	(9		)	(9		)	—		—		(201		)	(57		)
Total recognized in other comprehensive loss (income)	$	3,807		$	(11,641	)	$	841		$	978		$	458		$	244	$	597	$	(1,099	)	$	1,449
Total recognized in net periodic benefit (cost) and other comprehensive loss (income)	$	4,127		$	(10,235	)	$	2,689		$	1,018		$	650		$	448	$	1,216	$	(404	)	$	1,619

Expected future benefit payments

The following benefit payments, which reflect expected future service, are expected to be paid for our U.S. and Non-U.S. plans:



	U.S. Pension Benefits		Non-U.S. Pension Benefits		Postretirement Medical Benefits
2015	$	2,239	$	229	$	947
2016	2,419		235		1,012
2017	2,577		241		1,063
2018	2,724		247		1,064
2019	2,822		254		1,089
2020 to 2024	15,135		1,384		5,294
Total	$	27,916	$	2,590	$	10,469

Amounts in accumulated other comprehensive loss to be recognized over next fiscal year

The following amounts are included in Accumulated Other Comprehensive Loss as of December 31, 2014 and are expected to be recognized as components of net periodic benefit cost during 2015:



	Pension Benefits		Postretirement Medical Benefits
Net actuarial loss	$	1,561	$	140
Prior service cost	42		—