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Equity - Deferred Compensation (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Jul. 31, 2021	Apr. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Compensation And Benefits
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Share-based compensation expense			$ 14.2	$ 14.2	$ 9.3
Selling and Administrative Expense
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Share-based compensation expense			$ 0.7	$ 0.8	$ 0.6
Chief Executive Officer | Common Stock
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Restricted stock vested during period, net settled (in shares)			153,287	120,665	150,530
Chief Executive Officer | ACM Acquisition | Common Stock
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Restricted stock vested during period, net settled (in shares)			172,513	186,772	229,083
Restricted Common Stock
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Total grant date fair value			$ 23.7	$ 21.3
Restricted stock vested with grant date fair value (in shares)			874,611
Restricted stock vested during the period, grant date fair value			$ 11.1
Unvested restricted common stock outstanding (in shares)			1,657,078	1,389,427
Unrecognized compensation cost			$ 8.1
Remaining weighted-average vesting period			1 year 9 months 18 days
Restricted Common Stock | 2020 Plan | Chief Executive Officer
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			247,275
Total grant date fair value			$ 2.9
Restricted Common Stock | Employees
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)				652,596
Total grant date fair value				$ 11.1
Restricted Common Stock | Employees | 2020 Plan
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			943,788		384,758
Total grant date fair value			$ 11.3		$ 6.4
Restricted Common Stock | Employees | 2020 Plan | Vested on Grant Date
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			299,710	232,899	144,951
Total grant date fair value			$ 3.6	$ 4.0	$ 2.4
Restricted Common Stock | Employees | 2020 Plan | First Anniversaries
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			277,751		101,475
Total grant date fair value			$ 3.4	$ 3.7	$ 1.7
Restricted Common Stock | Employees | 2020 Plan | Second Anniversaries
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			253,479	181,968	88,788
Total grant date fair value			$ 3.0	$ 3.1	$ 1.5
Restricted Common Stock | Employees | 2020 Plan | Third anniversaries
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			78,126	9,951	25,479
Total grant date fair value			$ 0.9	$ 0.2	$ 0.4
Restricted Common Stock | Employees | 2020 Plan | Fourth Anniversaries
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			34,722	9,938	24,065
Total grant date fair value			$ 0.4	$ 0.2	$ 0.4
RSUs | 2020 Plan | Director
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			40,796	25,012
Total grant date fair value			$ 0.5	$ 0.4
RSUs | 2020 Plan | Chief Executive Officer
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)				189,873
Total grant date fair value				$ 3.3
RSUs | Employees | First Anniversaries
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)				217,840
Time Based Vesting Equity Award | Chief Executive Officer
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)	165,746	184,729
Total grant date fair value	$ 3.0	$ 3.1
Performance-Based Restricted Stock | Chief Executive Officer
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			352,427					294,985
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period				381,503	448,980
Vesting period (in years)			4 years	4 years
Performance-Based Restricted Stock | Chief Executive Officer | ACM Acquisition
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)						313,152	246,508	294,985

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