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Retirement Plans - Summary of Accumulated Benefit Obligation Related to All Defined Pension Plans (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
United States Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 16,647	$ 16,713
Accumulated benefit obligation	16,647	16,713
Fair value of plan assets	13,763	13,928
International Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	75,038	82,033
Accumulated benefit obligation	71,350	77,724
Fair value of plan assets	36,791	38,757
Unfunded Defined Benefit Plan | United States Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	0	0
Accumulated benefit obligation	0	0
Unfunded Defined Benefit Plan | International Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	32,320	33,124
Accumulated benefit obligation	30,328	31,270
Defined Benefit Plans With An Accumulated Benefit Obligation In Excess Of The Fair Value Of Plan Assets | United States Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	16,647	16,713
Accumulated benefit obligation	16,647	16,713
Fair value of plan assets	13,763	13,928
Defined Benefit Plans With An Accumulated Benefit Obligation In Excess Of The Fair Value Of Plan Assets | International Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	74,235	81,253
Accumulated benefit obligation	70,654	77,021
Fair value of plan assets	$ 36,077	$ 37,986

X

- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

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Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

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Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

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