Equity-Based Compensation - 2017 Equity Incentive Plan (Details)	12 Months Ended
Mar. 31, 2021 shares
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option expiration period	1 year
Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance (in shares)	5,000,000
Shares available for grant (in shares)	3,252,890
Award Expiration Period One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Award Expiration Period Two \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option expiration period	10 years
Award Expiration Period Three \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option expiration period	3 months

Aggregate number of common shares reserved for future issuance.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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