Retirement Plans - Change in Projected Benefit Obligations and Change in Plan Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
United States Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at the beginning of the period	$ 16,647	$ 16,713
Service cost	0	0	$ 0
Interest cost	616	631	658
Benefits paid, inclusive of plan expenses	(1,132)	(1,061)
Plan curtailments and settlements	0	0
Experience loss	1,980	364
Foreign currency translation adjustment	0	0
Benefit obligation at the end of the period	18,111	16,647	16,713
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the period	13,763	13,928
Actual return on plan assets	(649)	758
Employer contributions	54	138
Benefits paid, inclusive of plan expenses	(1,132)	(1,061)
Defined Benefit Plan, Settlements and Curtailments, Plan Assets	0	0
Foreign currency translation adjustment	0	0
Fair value of plan assets at the end of the period	12,036	13,763	13,928
Funded status deficit	(6,075)		(2,884)
International Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at the beginning of the period	75,038	82,033
Service cost	906	997	1,025
Interest cost	1,485	1,831	1,795
Benefits paid, inclusive of plan expenses	(2,262)	(1,758)
Plan curtailments and settlements	(678)	(1,130)
Experience loss	(3,024)	(261)
Foreign currency translation adjustment	(2,863)	(6,674)
Benefit obligation at the end of the period	68,602	75,038	82,033
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at the beginning of the period	36,791	38,757
Actual return on plan assets	(1,605)	2,109
Employer contributions	2,098	1,670
Benefits paid, inclusive of plan expenses	(2,262)	(1,758)
Defined Benefit Plan, Settlements and Curtailments, Plan Assets	(482)	(1,130)
Foreign currency translation adjustment	(1,709)	(2,857)
Fair value of plan assets at the end of the period	32,831	36,791	$ 38,757
Funded status deficit	$ (35,771)	$ (38,247)