Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2011

Benefit Plans [Abstract]

Schedule Of Reconciliation Of Changes In The Benefit Obligations And Fair Value Of Plan Assets

	Pension Benefits												Other Postretirement  Benefits
	U.S. Plans						Non-U.S. Plans
	2011			2010			2011			2010			2011			2010
Reconciliation of benefit obligations:
Obligations as of January 1	$	71,116			71,524		$	219,832			220,326		$	14,896			16,621
Service cost		—			—			1,205			1,054			28			26
Interest cost		3,505			3,738			12,179			11,650			769			888
Participant contributions		—			—			50			—			—			—
Actuarial losses (gains)		5,456			718			(843	)		4,495			1,811			(1,304	)
Plan amendments		—			—			—			127			—			—
Benefit payments		(5,210	)		(4,864	)		(8,109	)		(7,393	)		(1,497	)		(1,428	)
Transfers		—			—			3,238			(769	)		—			—
Effect of foreign currency exchange rate changes		—			—			(3,045	)		(9,658	)		(166	)		93
Benefit obligations as of December 31	$	74,867			71,116		$	224,507			219,832		$	15,841			14,896
Reconciliation of fair value of plan assets:
Fair value of plan assets as of January 1	$	52,169			47,037		$	158,329			150,788
Actual return on plan assets		1,150			5,353			3,734			15,466
Transfers		—			—			2,617			—
Employer contributions		6,578			4,643			5,850			5,227
Participant contributions		—			—			50			—
Benefit payments and plan expenses		(5,210	)		(4,864	)		(8,109	)		(7,409	)
Effect of foreign currency exchange rate changes		—			—			(1,383	)		(5,743	)
Fair value of plan assets as of December 31	$	54,687			52,169		$	161,088			158,329
Funded status as of December 31	$	(20,180	)		(18,947	)	$	(63,419	)		(61,503	)	$	(15,841	)		(14,896	)

Amounts Recognized As A Component Of Accumulated Other Comprehensive Income

	Pension Benefits								Other Postretirement  Benefits
	U.S. Plans				Non-U.S. Plans
	2011		2010		2011		2010		2011			2010
Net actuarial losses (gains)	$	27,463		20,270	$	33,454		27,540	$	(7,213	)		(10,334	)
Prior-service cost (credit)		1		2		323		363		(259	)		(319	)
Amounts included in accumulated other comprehensive income	$	27,464		20,272	$	33,777		27,903	$	(7,472	)		(10,653	)

Schedule Of Amounts Recognized In Balance Sheet

	2011			2010
Accrued liabilities	$	(2,779	)		(2,910	)
Postretirement benefits other than pensions		(14,462	)		(13,431	)
Other liabilities		(82,199	)		(79,005	)
Total pension and other postretirement accrued benefit liability	$	(99,440	)		(95,346	)

Accumulated Benefit Obligation In Excess Of Plan Assets

	U.S. Plans				Non-U.S. Plans
	2011		2010		2011		2010
Projected benefit obligation	$	74,867		71,116	$	223,833		219,120
Accumulated benefit obligation		74,867		71,116		205,957		202,055
Fair value of plan assets		54,687		52,169		160,397		157,569

Components Of Net Periodic Benefit Cost And Other Amounts Recognized In Other Comprehensive Income

	Pension Benefits																		Other Postretirement Benefits
	U.S. Plans									Non-U.S. Plans
	2011			2010			2009			2011			2010			2009			2011			2010			2009
Net periodic benefit cost (income):
Service cost	$	—			—			—		$	1,205			1,054			1,092		$	28			26			38
Interest cost		3,505			3,738			4,214			12,179			11,650			11,077			769			888			1,069
Expected return on plan assets		(4,118	)		(3,603	)		(3,193	)		(11,256	)		(10,390	)		(9,028	)		—			—			—
Amortization of prior-service cost (credit)		—			—			7			37			29			32			(59	)		(128	)		(165	)
Amortization of net loss (gain)		1,231			1,340			1,787			904			983			(75	)		(1,271	)		(1,446	)		(1,360	)
Net periodic benefit cost (income)		618			1,475			2,815			3,069			3,326			3,098		$	(533	)		(660	)		(418	)
Gain due to settlements or curtailments		—			—			—			—			(818	)		(66	)		—			—			—
Total net periodic benefit cost (income) recognized	$	618			1,475			2,815		$	3,069			2,508			3,032		$	(533	)		(660	)		(418	)
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net actuarial loss (gain)	$	8,423			(1,032	)		(3,604	)	$	6,641			(582	)		21,382		$	1,812			(1,304	)		(631	)
Amortization of net actuarial (loss) gain		(1,231	)		(1,340	)		(1,787	)		(904	)		(917	)		75			1,271			1,446			1,360
Prior service cost		—			—			—			—			127			—			—			—			—
Amortization of prior service (cost) credit		—			—			(7	)		(37	)		(29	)		(118	)		59			128			165
Effect of foreign currency exchange rate changes		—			—			—			(442	)		(3,704	)		(28	)		39			(16	)		—
Total recognized in other comprehensive income	$	7,192			(2,372	)		(5,398	)	$	5,258			(5,105	)		21,311		$	3,181			254			894
Total recognized in net periodic benefit cost and other comprehensive income	$	7,810			(897	)		(2,583	)	$	8,327			(2,597	)		24,343		$	2,648			(406	)		476

Assumptions Used To Determine Net Periodic Benefit Cost And Benefit Obligations

	Pension Benefits																		Other Postretirement  Benefits
	U.S. Plans									Non-U.S. Plans
	2011			2010			2009			2011			2010			2009			2011			2010			2009
Discount rate		5.3	%		5.7	%		6.3	%		5.4	%		5.7	%		6.4	%		5.5	%		6.0	%		6.4	%
Expected long-term rate of return on plan assets		7.8	%		7.8	%		7.8	%		6.8	%		7.2	%		7.0	%		N/A			N/A			N/A
Rate of compensation increases		N/A			N/A			N/A			3.6	%		3.8	%		3.4	%		N/A			N/A			N/A

The following weighted-average actuarial assumptions were used to determine benefit obligations at December 31:

	Pension Benefits																		Other Postretirement  Benefits
	U.S. Plans									Non-U.S. Plans
	2011			2010			2009			2011			2010			2009			2011			2010			2009
Discount rate		4.6	%		5.3	%		5.7	%		4.8	%		5.4	%		5.7	%		4.8	%		5.5	%		6.0	%
Rate of compensation increases		N/A			N/A			N/A			3.0	%		3.6	%		3.8	%		N/A			N/A			N/A

Schedule Of Health Care Cost Trend Rates

	2011			2010			2009
Healthcare cost trend rate assumed for next year		9.8	%		7.0	%		8.1	%
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)		5.1	%		5.2	%		5.3	%
Year that the rate reaches the ultimate trend rate		2021			2015			2013

Effects Of A One-Percentage-Point Change In Assumed Healthcare Cost Trend Rates

	1% Increase		1% Decrease
Effect on total of service and interest cost components of net periodic benefit cost — increase (decrease)	$	58	$	(50	)
Effect on the postretirement benefit obligation — increase (decrease)		1,094		(965	)

Estimated Benefit Payments For The Next Five Years And For The Years 2017 Through 2021

	Pension Benefits				Other Postretirement Benefits
	U.S. Plans		Non-U.S. Plans
2012	$	6,041		7,250		1,685
2013		5,648		8,983		1,714
2014		5,496		8,890		1,719
2015		5,219		9,745		1,719
2016		5,227		9,965		1,675
Aggregate 2017-2021		24,968		61,715		7,208

Long-Term Target Allocations Of Assets For U.S And U.K Plans

	U.S. Plan			UK Plan
Asset category:
Cash and cash equivalents		—			4%
Equity		60	%		50%
Fixed income		38	%		26%
Real estate and other		2	%		20%
Total		100	%		100%

Changes In Fair Value Of Plan Assets

	December 31, 2011
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Asset Category
Cash and cash equivalents(1)	$	6,205		198		—		6,403
Equity securities:
U.S. large-cap		6,460		22,869		—		29,329
U.S. mid-cap and small-cap		—		3,346		—		3,346
International(2)		73,388		7,021		—		80,409
Total Equity securities		79,848		33,236		—		113,084
Fixed income securities:
Corporate bonds — domestic		—		18,371		—		18,371
Corporate bonds — international		17,369		11,581		—		28,950
UK Index-Linked Gilts		22,041		—		—		22,041
Diversified domestic securities		—		1,594		—		1,594
Total Fixed income securities		39,410		31,546		—		70,956
Other types of investments:
U.S. real estate(3)		—		1,289		—		1,289
International real estate(3)		12,463		—		—		12,463
Other(4)		—		—		11,580		11,580
Total	$	137,926		66,269		11,580		215,775

	December 31, 2010
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
Asset Category
Cash and cash equivalents(1)	$	16,522		247		—		16,769
Equity securities:
U.S. large-cap		7,645		21,428		—		29,073
U.S. mid-cap and small-cap		—		3,058		—		3,058
International(2)		81,713		6,648		—		88,361
Total Equity securities		89,358		31,134		—		120,492
Fixed income securities:
Corporate bonds — domestic		—		17,057		—		17,057
Corporate bonds — international		15,904		11,747		—		27,651
UK Index-Linked Gilts		17,113		—		—		17,113
Diversified domestic securities		—		1,187		—		1,187
Total Fixed income securities		33,017		29,991		—		63,008
Other types of investments:
U.S. real estate(3)		—		—		1,111		1,111
Other(4)		—		—		9,118		9,118
Total	$	138,897		61,372		10,229		210,498

(1) Cash and cash equivalents consist of traditional domestic and foreign highly liquid short-term securities with the goal of providing liquidity and preservation of capital while maximizing return on assets.

(2) The International category consists of mutual fund investments focused on companies operating in developed and emerging markets outside of the U.S. These investments target broad diversification across large and mid/small-cap companies and economic sectors.

(3) U.S. and International real estate consists primarily of equity and debt investments made, directly or indirectly, in various interests in unimproved and improved real properties.

(4) Other investments consist of insurance and reinsurance contracts securing the retirement benefits. The fair value of these contracts was calculated at the discount value of premiums paid by the Company, less expenses charged by the insurance providers. The insurance providers with which the Company has placed these contracts are well-known financial institutions with an established history of providing insurance services.