Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2012

Compensation and Retirement Disclosure [Abstract]

Schedule of Costs of Retirement Plans

Net periodic pension and postretirement benefit expense (income) recorded in the Company's statement of income for defined benefit pension plans and postretirement benefit plans include the following components:

	Pension Benefit									Postretirement Benefit
	2012			2011			2010			2012			2011			2010
	(dollars in thousands)
Service cost	$	600		$	640		$	600		$	—		$	—		$	—
Interest cost	1,620			1,590			1,570			50			50			70
Expected return on plan assets	(1,720		)	(1,600		)	(1,570		)	—			—			—
Amortization of prior-service cost	—			—			—			(200		)	(270		)	(270		)
Settlement/curtailment	190			—			—			(1,490		)	—			—
Amortization of net (gain)/loss	1,070			720			440			(80		)	(90		)	(50		)
Net periodic benefit expense (income)	$	1,760		$	1,350		$	1,040		$	(1,720	)	$	(310	)	$	(250	)

Schedule of Assumptions Used

Weighted-average assumptions used in accounting for the U.S. defined benefit pension plans and postretirement benefit plans are as follows:

	Pension Benefit						Postretirement Benefit
	2012		2011		2010		2012		2011		2010
Discount rate for obligations	4.24	%	4.78	%	5.50	%	3.69	%	4.54	%	4.66	%
Discount rate for benefit costs	4.78	%	5.50	%	6.13	%	4.54	%	4.66	%	5.25	%
Rate of increase in compensation levels	N/A		N/A		N/A		N/A		N/A		N/A
Expected long-term rate of return on plan assets	7.75	%	7.75	%	8.00	%	N/A		N/A		N/A

The Company utilizes a high-quality (Aa) corporate bond yield curve as the basis for its domestic discount rate for its pension and postretirement benefit plans. Management believes this yield curve removes the impact of including additional required corporate bond yields (potentially considered in the above-median curve) resulting from the uncertain economic climate that does not necessarily reflect the general trend in high-quality interest rates.

Actuarial valuations of the Company's non-U.S. defined benefit pension plans were prepared as of December 31, 2012, 2011 and 2010. Weighted-average assumptions used in accounting for the non-U.S. defined benefit pension plans are as follows:

	Pension Benefit
	2012		2011		2010
Discount rate for obligations	4.50	%	4.80	%	5.50	%
Discount rate for benefit costs	4.80	%	5.50	%	5.90	%
Rate of increase in compensation levels	3.70	%	4.00	%	4.00	%
Expected long-term rate of return on plan assets	5.50	%	7.00	%	7.00	%

Schedule of Changes in Projected Benefit Obligations and Fair Value of Plan Assets

	Pension Benefit						Postretirement Benefit
	2012			2011			2012			2011
	(dollars in thousands)
Changes in Projected Benefit Obligations
Benefit obligations at January 1	$	(34,560	)	$	(29,850	)	$	(1,040	)	$	(1,100	)
Service cost	(600		)	(640		)	—			—
Interest cost	(1,620		)	(1,590		)	(50		)	(50		)
Participant contributions	(40		)	(40		)	(10		)	(20		)
Actuarial gain (loss)	(2,900		)	(4,090		)	80			90
Benefit payments	1,890			1,550			50			40
Settlement/curtailment	(190		)	—			—			—
Change in foreign currency	(710		)	100			—			—
Projected benefit obligations at December 31	(38,730		)	(34,560		)	(970		)	(1,040		)
Changes in Plan Assets
Fair value of plan assets at January 1	$	21,280		$	20,150		$	—		$	—
Actual return on plan assets	1,680			470			—			—
Employer contributions	6,130			2,290			40			20
Participant contributions	40			40			10			20
Benefit payments	(1,890		)	(1,550		)	(50		)	(40		)
Change in foreign currency	620			(120		)	—			—
Fair value of plan assets at December 31	27,860			21,280			—			—
Funded status at December 31	$	(10,870	)	$	(13,280	)	$	(970	)	$	(1,040	)

Schedule of Amounts Recognized in Balance Sheet

	Pension Benefit						Postretirement Benefit
	2012			2011			2012			2011
	(dollars in thousands)
Amounts Recognized in Balance Sheet
Prepaid benefit cost	$	1,020		$	1,060		$	—		$	—
Current liabilities	(410		)	(390		)	(90		)	(110		)
Noncurrent liabilities	(11,480		)	(13,940		)	(880		)	(930		)
Net liability recognized at December 31	$	(10,870	)	$	(13,270	)	$	(970	)	$	(1,040	)

Schedule of Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income as of December 31 are as follows:

	2012			2011
	(dollars in thousands)
Foreign currency translation adjustments	$	53,380		$	49,450
Unrecognized prior service cost and unrecognized loss in actuarial assumptions	(12,440		)	(9,870		)
Unrealized loss on derivatives	(1,680		)	—
Accumulated other comprehensive income	$	39,260		$	39,580

	Pension Benefit				Postretirement Benefit
	2012		2011		2012			2011
	(dollars in thousands)
Amounts Recognized in Accumulated Other Comprehensive Income (Loss)
Unrecognized prior-service cost	$	130	$	130	$	—		$	(1,530	)
Unrecognized net loss/(gain)	19,430		17,280		(570		)	(680		)
Total accumulated other comprehensive income (loss) recognized at December 31	$	19,560	$	17,410	$	(570	)	$	(2,210	)

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets

	Pension Benefit						Postretirement Benefit
	2012			2011			2012			2011
	(dollars in thousands)
Accumulated benefit obligations at December 31	$	(36,320	)	$	(32,320	)	$	(970	)	$	(1,040	)
Plans with Benefit Obligation Exceeding Plan Assets
Benefit obligation	$	(37,660	)	$	(33,470	)	$	(970	)	$	(1,040	)
Plan assets	25,770			19,140			—			—
Benefit obligation in excess of plan assets	$	(11,890	)	$	(14,330	)	$	(970	)	$	(1,040	)

Schedule of Effect of Change in Discount Rate and Expected Return on Assets on Benefit Obligations and Expense

	December 31, 2012 Benefit Obligation						2012 Expense
	Pension			Postretirement Benefit			Pension			Postretirement Benefit
	(dollars in thousands)
Discount rate
25 basis point increase	$	(1,380	)	$	(20	)	$	(110	)	$	—
25 basis point decrease	$	1,450		$	20		$	110		—
Expected return on assets
50 basis point increase	N/A			N/A			$	(150	)	N/A
50 basis point decrease	N/A			N/A			$	150		N/A

Schedule of Allocation of Plan Assets

The actual weighted average asset allocation of the Company's domestic and foreign pension plans' assets at December 31, 2012 and 2011 and target allocations by class, were as follows:

	Domestic Pension						Foreign Pension
			Actual						Actual
	Target		2012		2011		Target		2012		2011
Equity securities	50%-70%		61	%	57	%	40	%	30	%	35	%
Fixed income securities	30%-50%		37	%	37	%	60	%	49	%	65	%
Cash and cash equivalents	—		2	%	6	%	—		21	%	—	%
Total	100	%	100	%	100	%	100	%	100	%	100	%

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

The following table summarizes the level under the fair value hierarchy (see Note 3) that the Company's pension plan assets are measured on a recurring basis as of December 31, 2012:

	Total		Level 1		Level 2		Level 3
Equity Securities
Investment funds	$	11,740	$	4,300	$	7,440	$	—
Fixed Income Securities
Investment funds	8,120		—		8,120		—
Government bonds	2,400		2,400		—		—
Government agencies	440		440		—		—
Corporate bonds	1,040		1,040		—		—
Other(a)	350		110		240		—
Cash and Cash Equivalents
Short term investment funds	3,770		150		3,620		—
Total	$	27,860	$	8,440	$	19,420	$	—

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^(a)  Comprised of mortgage-backed and asset backed securities.

Schedule of Expected Benefit Payments

The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid:

	Pension Benefit		Postretirement Benefit
	(dollars in thousands)
December 31, 2013	$	1,800	$	90
December 31, 2014	$	1,850	$	90
December 31, 2015	$	1,890	$	80
December 31, 2016	$	1,960	$	80
December 31, 2017	$	2,060	$	60
Years 2018-2022	$	11,630	$	250

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates

A one-percentage point change in the assumed health care cost trend would have the following effects:

	One Percentage-Point Increase		One Percentage-Point Decrease
	(dollars in thousands)
Effect on total service and interest cost	$	—	$	—
Effect on postretirement benefit obligation	$	70	$	(60	)