Derivative Instruments and Fair Value Accounting FX Hedge (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Foreign Currency Fair Value Hedge Derivative [Line Items]
Total stockholders' equity		$ 1,298.5	$ 1,253.4	$ 1,298.5	$ 1,253.4	$ 1,304.0	$ 1,288.5	$ 1,275.5	$ 1,249.0	$ 1,250.4	$ 1,269.6
Foreign Exchange Forward | Designated as Hedging Instrument [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Derivative, Notional Amount		179.0		179.0
Derivative Liability		(9.0)		(9.0)
Foreign Exchange Forward | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Designated as Hedging Instrument [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Total stockholders' equity		$ 12.0		$ 12.0
Foreign Exchange Forward | Interest Expense [Member] | Designated as Hedging Instrument [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]		Cost of revenues	Cost of revenues	Cost of revenues	Cost of revenues
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	[1]	$ 11.3		$ 11.3
Foreign Exchange Option | Designated as Hedging Instrument [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Derivative, Notional Amount	[2]	0.0		0.0
Derivative Liability	[2]	0.0		0.0
Foreign Exchange Option | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Designated as Hedging Instrument [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Total stockholders' equity	[2]	$ 0.0		$ 0.0
Foreign Exchange Option | Interest Expense [Member] | Designated as Hedging Instrument [Member]
Foreign Currency Fair Value Hedge Derivative [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	[2]	Cost of revenues	Cost of revenues	Cost of revenues	Cost of revenues
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	[1],[2]	$ 0.0		$ 0.0

[1] Based on the fair value of open hedges as of September 30, 2024.

[2] The foreign currency options matured in June 2024