Summary of Accumulated Benefit Obligation Related to All Defined Pension Plans (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 31, 2012
United States Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 15,911	$ 14,040
Accumulated benefit obligation	15,911	14,040
Fair value of plan assets	10,334	9,192
United States Plans \| Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	15,911	14,040
United States Plans \| Defined Benefit Plans With An Accumulated Benefit Obligation In Excess Of The Fair Value Of Plan Assets
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	15,911	14,040
Accumulated benefit obligation	15,911	14,040
Fair value of plan assets	10,334	9,192
International Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	59,876	28,003
Accumulated benefit obligation	56,135	26,445
Fair value of plan assets	29,468	789
International Plans \| Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	56,135	50,416
International Plans \| Unfunded Defined Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	28,444	26,892
Accumulated benefit obligation	27,032	25,508
International Plans \| Defined Benefit Plans With An Accumulated Benefit Obligation In Excess Of The Fair Value Of Plan Assets
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	29,571	28,003
Accumulated benefit obligation	27,985	26,445
Fair value of plan assets	$ 777	$ 789

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

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If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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- Definition

If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

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- Definition

If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References+ Details