Composition of Certain Financial Statement Captions - Summary of Equipment and Improvements (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023
Property Plant And Equipment [Line Items]
Equipment and improvements, gross	$ 65,752	$ 67,021
Accumulated depreciation and amortization	(60,191)	(60,600)
Equipment and improvements, net	5,561	6,421
Computer Equipment
Property Plant And Equipment [Line Items]
Equipment and improvements, gross	35,512	35,019
Internal-Use Software
Property Plant And Equipment [Line Items]
Equipment and improvements, gross	20,391	20,064
Leasehold Improvements
Property Plant And Equipment [Line Items]
Equipment and improvements, gross	5,766	7,067
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Equipment and improvements, gross	$ 4,083	$ 4,871

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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