Retirement Plans - Summary of Accumulated Benefit Obligation Related to All Defined Pension Plans (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019
United States Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 18,110	$ 16,647
Accumulated benefit obligation	18,110	16,647
Fair value of plan assets	12,036	13,763
International Plans
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	68,603	75,038
Accumulated benefit obligation	65,337	71,350
Fair value of plan assets	32,831	36,791
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	30,773	32,320
Accumulated benefit obligation	28,926	30,328
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	18,110	16,647
Accumulated benefit obligation	18,110	16,647
Fair value of plan assets	12,036	13,763
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	68,603	74,235
Accumulated benefit obligation	65,337	70,654
Fair value of plan assets	$ 32,831	$ 36,077

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.

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

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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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