Employee Benefit Plans - PSU Awards (Details) - PSUs $ / shares in Units, $ in Millions	1 Months Ended			12 Months Ended
	Mar. 31, 2024 shares	Jan. 31, 2023 USD ($) $ / shares shares	Jan. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) item $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares
Employee Benefit Plans
Number of components of PSUs granted | item				2
Awards granted based on the performance of our common stock against peer group companies (as a percent)				50.00%
Awards granted based on cumulative total Free Cash Flow (as a percent)				50.00%
Vesting Period				3 years
Payout at vesting (as a percent)		77.00%	157.00%
Units
Awards outstanding at beginning of year (in shares)		1,888,024	1,381,469	1,888,024	1,381,469	1,297,126
Granted to executive officers and other employees (in shares)				489,498	1,065,705	452,381
Vested (in shares)		(369,938)	(559,150)	(369,938)	(559,150)	(368,038)
Awards outstanding at end of year (in shares)				2,007,584	1,888,024	1,381,469
Grant Date Fair Value
Awards outstanding at beginning of year (in dollars per share) | $ / shares		$ 6.25	$ 8.34	$ 6.25	$ 8.34	$ 9.99
Granted (in dollars per share) | $ / shares				9.26	4.25	5.33
Vested (in dollars per share) | $ / shares				13.15	7.60	10.44
Awards outstanding at end of year (in dollars per share) | $ / shares				$ 5.71	$ 6.25	$ 8.34
Compensation cost | $				$ 4.8	$ 4.8	$ 4.1
Future share-based compensation | $				$ 5.4
Weighted average vesting period (in years)				1 year
Shares issued upon vesting (in shares)		285,778	876,469
Fair value of awards vested | $		$ 3.6	$ 3.2
Subsequent Event
Employee Benefit Plans
Payout at vesting (as a percent)	181.00%
Grant Date Fair Value
Shares issued upon vesting (in shares)	818,810
Maximum
Employee Benefit Plans
Payout at vesting (as a percent)				200.00%
Minimum
Employee Benefit Plans
Payout at vesting (as a percent)				0.00%