Equity-Based Compensation and Cash Awards - PSU awards (Details) $ / shares in Units, $ in Millions	1 Months Ended			3 Months Ended	9 Months Ended
	Mar. 31, 2023 period	Jul. 31, 2020 USD ($)	Jan. 31, 2020 USD ($) tranche	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($)
Cash Awards
Unvested cash awards recorded in other liabilities | $				$ 0.4	$ 0.4	$ 1.0
2013 Plan
Cash Awards
Cash awards granted | $			$ 3.0
Number of tranches related to cash awards | tranche			3
2020 Plan
Cash Awards
Cash awards granted | $		$ 3.0
Vesting period for cash awards		4 years
PSUs
Stock-based compensation
Number of shares of common stock awards converted into | shares				400,000
Number of units
Total awarded and unvested at the beginning of the period (in shares) | shares					1,329,725
Granted (in shares) | shares					417,466
Vested (in shares) | shares					(335,000)
Total awarded and unvested at the end of the period (in shares) | shares				1,412,191	1,412,191
Weighted average grant date fair value
Total awarded and unvested at the beginning of the period (in dollars per share) | $ / shares					$ 23.18
Granted (in dollars per share) | $ / shares					28.51
Vested (in dollars per share) | $ / shares					2.97
Total awarded and unvested at the end of the period (in dollars per share) | $ / shares				$ 29.54	$ 29.54
Additional disclosures
Unamortized equity-based compensation expense | $				$ 26.0	$ 26.0
Weighted average period for recognizing unrecognized stock-based compensation expense					1 year 6 months
PSU Awards Based on Absolute TSR
Stock-based compensation
Vesting percentage achieved				112.00%
Weighted-average assumptions used to calculate fair value of performance share units granted
Volatility (as a percent)					82.00%
Risk-free interest rate (as a percent)					4.61%
Weighted average fair value of awards granted - Absolute TSR | $ / shares					$ 33.96
PSU Awards Based on Absolute TSR | Minimum
Stock-based compensation
Number of PSUs that may vest, as a percent	0.00%
PSU Awards Based on Absolute TSR | Maximum
Stock-based compensation
Number of PSUs that may vest, as a percent	200.00%
PSU Awards Based on Absolute TSR | One Year Period
Stock-based compensation
Service period	1 year
Number of performance periods | period	3
PSU Awards Based on Absolute TSR | Three Year Period
Stock-based compensation
Service period	3 years
Number of cumulative performance periods | period	1
PSU Awards Based On Relative TSR
Stock-based compensation
Vesting percentage achieved				126.00%
2023 PSU Awards Based on Leverage Ratio
Stock-based compensation
Service period	1 year
Number of performance periods | period	3
2023 PSU Awards Based on Leverage Ratio | Minimum
Stock-based compensation
Number of PSUs that may vest, as a percent	0.00%
2023 PSU Awards Based on Leverage Ratio | Maximum
Stock-based compensation
Number of PSUs that may vest, as a percent	200.00%