Subsequent Events (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions			1 Months Ended			3 Months Ended
	Dec. 01, 2021	Oct. 01, 2021	Apr. 29, 2022	Jun. 30, 2021	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Feb. 07, 2022	Aug. 31, 2021
Subsequent Events
Impairment charge on right-of-use assets						$ 0.0	$ 41.0
Stock repurchase program, authorized amount								$ 1,000.0	$ 250.0
Stock repurchase program, remaining authorized repurchase amount						$ 933.6
Treasury Stock, Shares, Acquired						4.1
Stock repurchased and retired (in shares)						2.1
Treasury stock acquired, average cost per share (in dollars per share)		$ 30.99				$ 16.16
Treasury Stock Retired, Average Cost Per Share						$ 15.71
Treasury Stock, Value, Acquired, Par Value Method						$ 66.4
Stock repurchased and retired						$ 33.3
Preferred Shares
Subsequent Events
Number of shares issued (in shares)				14.4
Ordinary shares
Subsequent Events
Treasury Stock, Shares, Acquired						4.1
Stock repurchased and retired (in shares)						0.0
Stock repurchased and retired						$ 34.8
Subsequent Event
Subsequent Events
Stock repurchase program, remaining authorized repurchase amount			$ 825.0
Treasury Stock, Shares, Acquired			6.6
Stock repurchased and retired (in shares)			3.3
Treasury stock acquired, average cost per share (in dollars per share)			$ 16.43
Treasury Stock Retired, Average Cost Per Share			$ 16.72
Treasury Stock, Value, Acquired, Par Value Method			$ 108.6
Stock repurchased and retired			$ 55.1
CPA Global
Subsequent Events
Value of stock issued							$ 43.9
Newly issued ordinary shares (in shares)							1.5
Decision Resources Group
Subsequent Events
Newly issued ordinary shares (in shares)					2.9		2.9
ProQuest
Subsequent Events
Total consideration	$ 5,046.8
Cash	3,951.9
Clarivate stock to be issued	$ 1,094.9
Newly issued ordinary shares (in shares)	46.9