Fair Value of Financial Instruments - Schedule of Financial Instruments Measured on Not Measured at Fair Value (Details) - Nonrecurring - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Carrying Value
Assets
Measurement alternative investment	$ 0.9	$ 0.9
Total assets not accounted for at fair value	0.9	0.9
Liabilities
Debt obligations	662.2	707.4
Total liabilities not accounted for at fair value	662.2	707.4
Estimated Fair Value
Assets
Measurement alternative investment	0.9	0.9
Total assets not accounted for at fair value	0.9	0.9
Liabilities
Debt obligations	577.1	621.8
Total liabilities not accounted for at fair value	577.1	621.8
Estimated Fair Value | Quoted Prices (Level 1)
Assets
Measurement alternative investment	0.0	0.0
Total assets not accounted for at fair value	0.0	0.0
Liabilities
Debt obligations	0.0	0.0
Total liabilities not accounted for at fair value	0.0	0.0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Assets
Measurement alternative investment	0.0	0.9
Total assets not accounted for at fair value	0.0	0.9
Liabilities
Debt obligations	577.1	621.8
Total liabilities not accounted for at fair value	577.1	621.8
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Assets
Measurement alternative investment	0.9	0.0
Total assets not accounted for at fair value	0.9	0.0
Liabilities
Debt obligations	0.0	0.0
Total liabilities not accounted for at fair value	$ 0.0	$ 0.0