Consolidated Balance Sheet Detail - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019
Property Plant And Equipment [Line Items]
Total property and equipment	$ 84,939	$ 83,374
Less: accumulated depreciation	(39,433)	(36,081)
Total property and equipment, net	45,506	47,293
Plant and Equipment [Member]
Property Plant And Equipment [Line Items]
Total property and equipment	53,546	51,327
Leasehold Improvements [Member]
Property Plant And Equipment [Line Items]
Total property and equipment	$ 31,393	$ 32,047

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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