Business Combinations - Intangible Assets Acquired (Details) - ProQuest $ in Millions	Dec. 01, 2021 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 3,528.0
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 2,773.0
Customer relationships | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Remaining Range of Years	17 years
Customer relationships | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Remaining Range of Years	23 years
Technology & databases
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 709.3
Technology & databases | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Remaining Range of Years	5 years
Technology & databases | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Remaining Range of Years	17 years
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 45.7
Trade names | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Remaining Range of Years	2 years
Trade names | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Remaining Range of Years	10 years