Long-Term Debt - U.K. Credit Agreement (Details) £ in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2025 GBP (£)	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
Outstanding debt | $	$ 1,771.5		$ 1,852.0
U.K. credit agreement — revolving credit line
Debt Instrument [Line Items]
Maximum credit available		£ 200.0
Additional facility capacity under accordion feature		100.0
Outstanding debt	$ 82.7	£ 64.0	$ 171.4
U.K. credit agreement — revolving credit line | Minimum
Debt Instrument [Line Items]
Line of credit basis spread on variable rate, increase (decrease) (as a percent)	1.10%
U.K. credit agreement — revolving credit line | Maximum
Debt Instrument [Line Items]
Line of credit basis spread on variable rate, increase (decrease) (as a percent)	2.10%