Share-Based Compensation - Narrative (Details) shares in Thousands, $ in Millions	1 Months Ended		4 Months Ended	12 Months Ended
	Oct. 31, 2023	May 31, 2018 USD ($) segment shares	Dec. 31, 2023 USD ($)	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Feb. 29, 2024 USD ($) shares
Class of Stock [Line Items]
Stock-based compensation				$ 231.0	$ 257.0	$ 155.0
Allocation of recognized period costs, capitalized amount				$ 21.0	$ 18.0	$ 16.0
Capital shares reserved for future issuance (in shares) | shares				36,200
Typical vesting period				3 years
Number of shares authorized (up to) (in shares) | shares		25,000
Percentage in increment of eligible pay (in percentage)		1.00%
Performance Based Restricted Stock Units
Class of Stock [Line Items]
Compensation cost not yet recognized							$ 0.5
Stock granted, value, net of forfeitures				$ 62.0
Amount of non-cash compensation remaining in fiscal period				$ 33.0
Maximum | Performance Based Restricted Stock Units
Class of Stock [Line Items]
Shares reserved for future issuance (in shares) | shares							700
Employee stock option
Class of Stock [Line Items]
Award vesting period				3 years
Awards exercise period				10 years
Compensation cost not yet recognized				$ 9.0
Cost not yet recognized, period for recognition				1 year 4 months 24 days
Employee stock option | Minimum
Class of Stock [Line Items]
Stock options granted, expiration period				14 days
Employee stock option | Maximum
Class of Stock [Line Items]
Stock options granted, expiration period				60 days
Restricted Stock
Class of Stock [Line Items]
Grants in period (in shares) | shares				1,761,000	3,561,000	1,477,000
Accelerated cost			$ 55.0
Restricted Stock | Share-Based Payment Arrangement, Employee
Class of Stock [Line Items]
Award vesting period	5 years
Restricted Stock | Black Knight, Inc.
Class of Stock [Line Items]
Stock-based compensation				$ 25.0	$ 18.0
Restricted Stock | Minimum
Class of Stock [Line Items]
Award vesting period				3 years
Restricted Stock | Maximum
Class of Stock [Line Items]
Award vesting period				4 years
Time Based And Performance Based Restricted Stock
Class of Stock [Line Items]
Compensation cost not yet recognized				$ 239.0
Cost not yet recognized, period for recognition				1 year 7 months 6 days
Employee stock
Class of Stock [Line Items]
Stock-based compensation				$ 14.0	$ 13.0	$ 13.0
Percentage of maximum contribution of eligible pay (in percentage)		25.00%
Maximum amount of stock		$ 25,000.0
Shares employees are eligible for in each offering period (in shares) | shares		1,250,000
Number of offering periods per year | segment		2
Percentage of purchase price of common stock (in percentage)				85.00%