Amount of excess of rental payment required by lease over rental income recognized.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	Feb. 01, 2021	Jan. 14, 2021	Nov. 08, 2021	Jan. 01, 2021
Sale of Stock [Line Items]
Offering costs	$ 0.4
Accounting Standards Update 2016-02 \| Other Assets
Sale of Stock [Line Items]
Right-of-use asset			$ 0.3	$ 16.9
Accounting Standards Update 2016-02 \| Other Liabilities
Sale of Stock [Line Items]
Lease liabilities				$ 17.2
Deferred rent credit			$ (0.3)
Public Stock Offering
Sale of Stock [Line Items]
Net proceeds from sale		$ 525.7
Underwriter's option
Sale of Stock [Line Items]
Net proceeds from sale	$ 114.6	$ 114.6