Derivative Financial Instruments - Additional Information (Detail) $ in Thousands, lb in Millions	12 Months Ended
	Mar. 31, 2020 USD ($) lb	Mar. 31, 2019 USD ($) lb
Derivatives, Fair Value [Line Items]
Foreign currency contract, maturity	1 year
Cost of Sales
Derivatives, Fair Value [Line Items]
Derivative gain (loss) to be recorded in income within 12 months, before tax	$ 7,635
Lead hedge forward contracts
Derivatives, Fair Value [Line Items]
Hedge forward contracts, maturity	1 year
Derivative, nonmonetary notional amount, mass | lb	35.0	42.0
Total purchase price of derivative	$ 30,078	$ 39,218
Designated as Hedging Instrument | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Notional amount	34,008	42,318
Not Designated as Hedging Instrument | Foreign currency forward contracts
Derivatives, Fair Value [Line Items]
Notional amount	$ 42,232	$ 22,201