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Income Taxes - Additional Information (Detail) - USD ($)	9 Months Ended
	Dec. 31, 2019	Mar. 31, 2019
Income Taxes [Line Items]
Liability unrecognized tax benefits	$ 0	$ 0
Earliest Tax Year [Member] | Federal Tax Jurisdictions [Member]
Income Taxes [Line Items]
Open tax year	2015
Earliest Tax Year [Member] | State Tax Jurisdictions [Member]
Income Taxes [Line Items]
Open tax year	2014
Earliest Tax Year [Member] | International Tax Jurisdictions [Member]
Income Taxes [Line Items]
Open tax year	2016
Latest Tax Year [Member] | Federal Tax Jurisdictions [Member]
Income Taxes [Line Items]
Open tax year	2018
Latest Tax Year [Member] | State Tax Jurisdictions [Member]
Income Taxes [Line Items]
Open tax year	2018
Latest Tax Year [Member] | International Tax Jurisdictions [Member]
Income Taxes [Line Items]
Open tax year	2018

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Income taxes.

+ References

No definition available.

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

+ References

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Amount of unrecognized tax benefits.

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