Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 644.8	$ 581.9
Revenue, Remaining Performance Obligation, Amount	1,700.0
Contract with Customer, Liability, Change in Timeframe, Performance Obligation Satisfied, Revenue Recognized	273.7	252.9
Deferred revenue, current and non-current	$ 690.6	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	58.00%
Revenue, Remaining Performance Obligation, Percentage	58.00%
Revenue performance period	9 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	25.00%
Revenue, Remaining Performance Obligation, Percentage	25.00%
Revenue performance period	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	11.00%
Revenue, Remaining Performance Obligation, Percentage	11.00%
Revenue performance period	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
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2030-01-01
Disaggregation of Revenue [Line Items]
Revenue performance period	4 years
License-based
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 444.9	418.0
Asset-based
Disaggregation of Revenue [Line Items]
Consolidated revenue	95.1	85.7
Transaction-based
Disaggregation of Revenue [Line Items]
Consolidated revenue	$ 104.8	$ 78.2

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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