Stock-Based Compensation and Other Employee Benefit Plans - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	May 31, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Stock-Based Compensation and Other Employee Benefit Plans [Line Items]
Stock-based compensation plans, number of shares available for future grant (in shares)		4,441,000		4,441,000
Non-cash stock-based compensation expense		$ 7.0	$ 8.6	$ 16.7	$ 17.1
Stock-based compensation, income tax benefits		$ 1.1	$ 1.5	3.0	11.8
Stock-based compensation, vested awards, net income tax benefit (deficiency)				$ (0.1)	$ 8.9
2013 Incentive Plan
Stock-Based Compensation and Other Employee Benefit Plans [Line Items]
Share-based compensation, number of additional shares authorized	1,200,000
2011 Incentive Plan
Stock-Based Compensation and Other Employee Benefit Plans [Line Items]
Share-based compensation, number of additional shares authorized	1,000,000