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Retirement Plans - Summary of Accumulated Benefit Obligation Related to All Defined Pension Plans (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020
United States Plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 17,806	$ 18,111
Projected benefit obligation	17,806	18,111
Fair value of plan assets	16,265	12,036
United States Plans | Unfunded defined benefit plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	0	0
Projected benefit obligation	0	0
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	17,806	18,111
Fair value of plan assets	16,265	12,036
Accumulated benefit obligation	17,806	18,111
International Plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	78,360	65,336
Projected benefit obligation	82,814	68,602
Fair value of plan assets	42,390	32,831
International Plans | Unfunded defined benefit plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	31,970	28,926
Projected benefit obligation	34,932	30,773
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	82,814	68,602
Fair value of plan assets	42,390	32,831
Accumulated benefit obligation	$ 77,928	$ 65,336

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.

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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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