Stock-Based Compensation and Employee Benefit Plans - Stock Options Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	1,000,000	0
Stock options and awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense	$ 0.2	$ 0.2
Stock options exercised, intrinsic value	0.5	0.8
Unrecognized compensation cost related to unvested stock options	$ 7.0		$ 0.1
Expense expected to be recognized over remaining weighted-average period	3 years 3 months 18 days		3 months 18 days
Cash received	$ 0.5	$ 0.8
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	955,000
Expiration period	10 years
Stock-based compensation vesting period	4 years
Requisite service period	3 years