Long-Term Debt - U.K. Credit Agreement (Details) £ in Millions, $ in Millions	1 Months Ended	3 Months Ended
	Jan. 31, 2024	Mar. 31, 2024 USD ($)	Mar. 31, 2024 GBP (£)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Outstanding debt | $		$ 1,677.2		$ 1,629.2
U.K. credit agreement — revolving credit line
Debt Instrument [Line Items]
Maximum credit available			£ 200.0
Additional facility capacity under accordion feature			100.0
Extended term	1 year
Outstanding debt		$ 80.8	£ 64.0	$ 0.0
U.K. credit agreement — revolving credit line | Minimum | Sterling Overnight Index Average (SONIA)
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 | Sterling Overnight Index Average (SONIA)
Debt Instrument [Line Items]
Line of credit basis spread on variable rate, increase (decrease) (as a percent)		2.10%