Business Combinations - Narrative (Details)			3 Months Ended			6 Months Ended
	Feb. 28, 2020 USD ($)	May 13, 2019 USD ($) $ / shares shares	Jun. 30, 2020 USD ($)	Mar. 31, 2020	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) shares	Jun. 30, 2019 USD ($)
Business Acquisition [Line Items]
Conversion ratio				132.13667
Newly issued ordinary shares (in shares) | shares						2,895,638
Percentage of ownership		74.00%
Goodwill, purchase accounting adjustments						$ 2,100,000
Expense reduction increase (decrease)			$ (1,261,000)		$ 1,261,000	$ (26,187,000)	$ 26,626,000
Churchill Sponsor LLC
Business Acquisition [Line Items]
Percentage of ownership		26.00%
Jersey
Business Acquisition [Line Items]
Total purchase price		$ 3,052,500,000
Newly issued ordinary shares (in shares) | shares		305,250,000
Newly issued shares value (in dollars per share) | $ / shares		$ 10.00
Warrants excluded from ownership calculation (in shares) | shares		52,800,000
Compensatory options issued, excluded from ownership calculation (in shares) | shares		24,806,793
Ordinary shares owned by sponsor, excluded from ownership calculation (in shares) | shares		10,600,000
Jersey | Clarivate
Business Acquisition [Line Items]
Conversion ratio		132.13667
Decision Resources Group
Business Acquisition [Line Items]
Total purchase price	$ 964,997,000
Newly issued ordinary shares (in shares) | shares						2,895,638
Value of Clarivate stock issued	$ 2,895,638,000
Percentage of ownership after transaction	100.00%
Purchase price, net of cash	$ 900,000,000
Adjusted closing cash paid on the closing	6,100,000
Contingent consideration, liability	58,897,000		64,660,000			$ 64,660,000
Increase in contingent stock consideration			4,575,000			5,763,000
Acquisition cost expensed			$ 5,702,000			$ 25,465,000
DRG Acquisition
Business Acquisition [Line Items]
Purchase price, net of cash	$ 944,220,000
Company Owners | Jersey
Business Acquisition [Line Items]
Newly issued ordinary shares (in shares) | shares		217,500,000
Value of Clarivate stock issued		$ 2,175,000,000
Churchill Public Shareholders | Jersey
Business Acquisition [Line Items]
Newly issued ordinary shares (in shares) | shares		68,999,999
Value of Clarivate stock issued		$ 690,000,000
Churchill Sponsor LLC | Jersey
Business Acquisition [Line Items]
Total purchase price		$ 187,500,000
Newly issued ordinary shares (in shares) | shares		17,250,000
Certain Investors | Jersey
Business Acquisition [Line Items]
Newly issued ordinary shares (in shares) | shares		1,500,000