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Face amount or stated value per share of common stock.

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The cash inflow associated with the amount received from entity's first offering of stock to the public.

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Price of a single share of a number of saleable stocks of a company.

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Number of new stock issued during the period.

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Number of share options (or share units) exercised during the current period.

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Organization (Details) - USD ($) $ / shares in Units, $ in Millions	Feb. 11, 2020	Dec. 31, 2019	Sep. 30, 2019
Organization [Abstract]
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common Class A [Member] \| Subsequent Event [Member]
Organization [Abstract]
Common stock, par value (in dollars per share)	$ 0.01
Common Class A [Member] \| Initial Public Offering [Member] \| Subsequent Event [Member]
Organization [Abstract]
Number of shares issued (in shares)	5,307,693
Common stock, par value (in dollars per share)	$ 0.01
Number of shares issued on exercise of options (in shares)	692,308
Offering price of shares (in dollars per share)	$ 12.00
Proceeds from offering	$ 59.2