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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Description of Business - Additional Information (Details) $ in Millions	1 Months Ended	9 Months Ended
	Oct. 31, 2020 USD ($) shares	Sep. 30, 2020 USD ($) platform	Mar. 31, 2020 USD ($)
Subsidiary, Sale of Stock [Line Items]
Number of platforms \| platform		2
IPO \| Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Shares sold in offering \| shares	5,750,000
Total gross proceeds from stock offering	$ 230.0
Aggregate net proceeds from stock offering	$ 215.8
Over-Allotment Option \| Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Shares sold in offering \| shares	750,000
Term Loan Agreement
Subsidiary, Sale of Stock [Line Items]
Repayments of debt		$ 88.6
Senior Notes \| Convertible Notes
Subsidiary, Sale of Stock [Line Items]
Debt instrument face amount			$ 230.0
Debt instrument stated rate		2.625%	2.625%
Proceeds from issuance of debt		$ 222.6