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Equity - Deferred Compensation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Employee Compensation And Benefits
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Share-based compensation expense	$ 13.4	$ 14.2	$ 14.2
Selling and Administrative Expense
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Share-based compensation expense	0.8	$ 0.7	$ 0.8
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
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
Restricted Common Stock
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Total grant date fair value	$ 22.2	$ 23.7
Restricted stock vested with grant date fair value (in shares)	894,913
Restricted stock vested during the period, grant date fair value	$ 9.6
Unvested restricted common stock outstanding (in shares)	1,689,556	1,657,078
Unrecognized compensation cost	$ 8.8
Remaining weighted-average vesting period	1 year 10 months 24 days
Restricted Common Stock | Chief Executive Officer | Award One
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Restricted stock vested during period (in shares)	184,729
Restricted Common Stock | Chief Executive Officer | Award Two
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Restricted stock vested during period (in shares)	165,746
Restricted Common Stock | Chief Executive Officer | Common Stock | Award Two
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Restricted stock vested and settled (in shares)	81,132
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)	309,775
Total grant date fair value	$ 3.9
Restricted Common Stock | Employees
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)		943,788
Total grant date fair value		$ 11.3
Shares withheld for taxes (in shares)	273,163
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)	828,073		652,596
Total grant date fair value	$ 10.9		$ 11.1
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)	268,869	299,710	232,899
Total grant date fair value	$ 3.5	$ 3.6	$ 4.0
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)	244,794		217,840
Total grant date fair value	$ 3.2	$ 3.4	$ 3.7
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)	248,346	253,479	181,968
Total grant date fair value	$ 3.3	$ 3.0	$ 3.1
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)	31,314	78,126	9,951
Total grant date fair value	$ 0.5	$ 0.9	$ 0.2
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)	34,750	34,722	9,938
Total grant date fair value	$ 0.5	$ 0.4	$ 0.2
RSUs | 2020 Plan | Director
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)	36,688	40,796
Total grant date fair value	$ 0.5	$ 0.5
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)		247,275
Total grant date fair value		$ 2.9
RSUs | Employees | First Anniversaries
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)		277,751
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)	275,569					246,508
Restricted stock vested during period (in shares)		352,427	381,503
Vesting period (in years)		4 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
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)			189,873
Total grant date fair value			$ 3.3
Time Based Vesting Equity Award | Board Of Directors
Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]
Grants during the period (in shares)			25,012
Total grant date fair value			$ 0.4

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