Employee Benefits - Changes in Postretirement Benefit Obligation and Plan Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	$ 523,298	$ 440,646
Service cost for benefits earned	3,121	3,602	3,781
Interest cost on projected benefit obligation	24,314	24,373	24,191
Actuarial loss (gain)	47,547	78,026
Plan amendments
Adjustments for expense/tax contained in service cost
Plan participants' contributions
Benefits paid	(24,574)	(23,349)
Curtailments / settlements
Special termination benefits
Translation adjustments
Benefit obligation at end of year	573,706	523,298	440,646
Fair value of plan assets at beginning of year	372,142	347,084
Actual return on plan assets	39,306	25,172
Employer contributions	18,415	23,235
Plan participants' contributions
Benefits paid	(24,574)	(23,349)
Settlements
Translation adjustments
Fair value of plan assets at end of year	405,289	372,142	347,084
Funded status at end of year	(168,417)	(151,156)
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	670,231	625,052
Service cost for benefits earned	12,585	10,560	9,804
Interest cost on projected benefit obligation	30,944	34,033	32,954
Actuarial loss (gain)	76,786	43,067
Plan amendments		(191)
Adjustments for expense/tax contained in service cost	(2,282)	(2,382)
Plan participants' contributions	2,492	2,523
Benefits paid	(27,234)	(28,923)
Curtailments / settlements	(2,641)	(11,290)
Special termination benefits		738	178
Translation adjustments	19,283	(2,956)
Benefit obligation at end of year	780,164	670,231	625,052
Fair value of plan assets at beginning of year	702,366	671,559
Actual return on plan assets	64,765	53,853
Employer contributions	16,767	18,817
Plan participants' contributions	2,492	2,523
Benefits paid	(27,234)	(28,923)
Settlements	(2,641)	(11,290)
Translation adjustments	19,673	(4,173)
Fair value of plan assets at end of year	776,188	702,366	671,559
Funded status at end of year	(3,976)	32,135
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	128,719	108,710
Service cost for benefits earned	1,357	1,178	1,378
Interest cost on projected benefit obligation	5,656	5,861	6,468
Actuarial loss (gain)	(10,921)	16,909
Plan amendments
Adjustments for expense/tax contained in service cost
Plan participants' contributions	979	1,015
Benefits paid	(6,482)	(4,954)
Curtailments / settlements
Special termination benefits
Translation adjustments
Benefit obligation at end of year	119,308	128,719	108,710
Plan participants' contributions	979	1,015
Benefits paid	$ (6,482)	$ (4,954)

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Defined Benefit Plan, Curtailments And Settlements, Benefit Obligation

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The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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Amount of gain (loss) from a decision to temporarily deviate from the substantive plan, or from a change in benefit obligation or plan asset value from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover or salary scale.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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-Glossary Postretirement Benefits

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The increase in the fair value of plan assets from contributions made by the employer.

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The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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Amount of gain (loss) from foreign currency exchange rate changes for benefit obligation for plans of a foreign operation whose functional currency is not the reporting currency.

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The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.

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The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The amount of increase or decrease due to a change in the terms of an existing plan or the initiation of a new plan. A plan amendment may increase or decrease benefits, including those attributed to years of service already rendered.

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Amount of net gain (loss) recognized in net periodic benefit cost as a result of an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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The amount of increase related to special termination benefits offered to and accepted by employees in connection with their termination of employment that are only offered for a short period of time. A situation involving termination benefits may also involve a curtailment.

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-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)(10)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

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