Equity-Based Compensation - PSU awards (Details) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2024 USD ($) period $ / shares shares	Mar. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 $ / shares shares	Dec. 31, 2022	Dec. 31, 2021
PSUs
Number of units
Total awarded and unvested at the beginning of the period (in shares) | shares		1,412,191
Granted (in shares) | shares		354,016
Vested (in shares) | shares		(207,456)
Total awarded and unvested at the end of the period (in shares) | shares	1,558,751	1,558,751	1,412,191
Weighted average grant date fair value
Total awarded and unvested at the beginning of the period (in dollars per share) | $ / shares		$ 29.54
Granted (in dollars per share) | $ / shares		29.39
Vested (in dollars per share) | $ / shares		9.52
Total awarded and unvested at the end of the period (in dollars per share) | $ / shares	$ 32.17	$ 32.17	$ 29.54
Additional disclosures
Unamortized equity-based compensation expense | $	$ 29	$ 29
Weighted average period for recognizing unrecognized stock-based compensation expense		1 year 7 months 6 days
PSU Awards Based on Absolute TSR
Weighted-average assumptions used to calculate fair value of performance share units granted
Volatility (as a percent)		55.00%
Risk-free interest rate (as a percent)		4.23%
Weighted average fair value of awards granted - Absolute TSR | $ / shares		$ 32.29
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
2021 PSU Awards Based on Leverage Ratio
Stock-based compensation
Service period					1 year
Vesting percentage achieved			200.00%	200.00%	200.00%
Shares issued to cover conversions (in shares) | shares		400,000
Number of performance periods					3
2021 PSU Awards Based on Leverage Ratio | Minimum
Stock-based compensation
Number of PSUs that may vest, as a percent					0.00%
2021 PSU Awards Based on Leverage Ratio | Maximum
Stock-based compensation
Number of PSUs that may vest, as a percent					200.00%
2024 PSU Awards Based on Leverage Ratio
Stock-based compensation
Service period	1 year
Number of performance periods | period	3
2024 PSU Awards Based on Leverage Ratio | Minimum
Stock-based compensation
Number of PSUs that may vest, as a percent	0.00%
2024 PSU Awards Based on Leverage Ratio | Maximum
Stock-based compensation
Number of PSUs that may vest, as a percent	200.00%