Subsequent Events (Details) - USD ($)			1 Months Ended	9 Months Ended
	Oct. 01, 2020	Mar. 12, 2019	Oct. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Subsequent Event [Line Items]
Total purchase price, net of cash acquired				$ 885,323,000	$ 0
Shares issued (in shares)		1,500,000
Newly issued ordinary shares (in shares)				2,895,638
Aggregate principal amount				$ 1,950,550,000		$ 1,665,000,000
Proceeds of revolving credit facility				$ 0	$ 5,000,000
Subsequent Event
Subsequent Event [Line Items]
Debt face amount	$ 1,600,000,000
Subsequent Event | Revolving Credit Facility
Subsequent Event [Line Items]
Long-term debt	2,052,926,000
Proceeds of revolving credit facility	60,000,000
Remaining borrowing capacity	187,663,000
Subsequent Event | CPA Global
Subsequent Event [Line Items]
Total purchase price, net of cash acquired	8,722,563,000
Cash and equivalents	91,878,000
Equity Holdback Consideration	46,485,000
Value of Clarivate stock issued	$ 6,761,515,000
Shares issued (in shares)	216,683,778		216,683,778
Shares issued percentage of ownership	35.00%
Cash paid for repayment CPA Global's parent company debt	$ 2,052,926,000
Subsequent Event | CPA Global | Maximum
Subsequent Event [Line Items]
Shares issued (in shares)	218,183,778
Newly issued ordinary shares (in shares)	218,306,663