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Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 663.2	$ 605.1	$ 1,308.0	$ 1,187.0
Revenue, Remaining Performance Obligation, Amount	1,600.0		1,600.0
Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized			440.2	395.5
Deferred revenue, current and non-current	$ 647.5		$ 647.5		$ 607.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Percentage	45.00%		45.00%
Revenue, Remaining Performance Obligation, Percentage	45.00%		45.00%
Revenue performance period	6 months		6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Percentage	35.00%		35.00%
Revenue, Remaining Performance Obligation, Percentage	35.00%		35.00%
Revenue performance period	1 year		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Percentage	13.00%		13.00%
Revenue, Remaining Performance Obligation, Percentage	13.00%		13.00%
Revenue performance period	2 years		2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01
Disaggregation of Revenue [Line Items]
Revenue performance period	3 years		3 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01
Disaggregation of Revenue [Line Items]
Revenue performance period	4 years		4 years
License-based
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 455.1	428.4	$ 900.0	846.4
Asset-based
Disaggregation of Revenue [Line Items]
Consolidated revenue	96.8	82.4	191.9	168.1
Transaction-based
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 111.3	$ 94.3	$ 216.1	$ 172.5

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