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Summary of Accumulated Benefit Obligation Related to All Defined Pension Plans (Detail) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
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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 |
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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 |
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International Plans | Pension Plans, Defined Benefit
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||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Accumulated benefit obligation | 56,135 | 50,416 |
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International Plans | Unfunded Defined Benefit Plan
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||
| 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
|
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| 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 |