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Debt - Summary of Debt - Senior Unsecured Notes (Details) - USD ($)	Oct. 01, 2020	Mar. 31, 2021	Dec. 31, 2020
Debt
Total debt outstanding		$ 3,540,250,000	$ 3,547,400,000
Debt issuance costs		(49,346,000)	(51,309,000)
Term Loan Facility, discount		(9,222,000)	(9,591,000)
Debt face amount	$ 1,600,000
CPA Global
Debt
Cash	2,078,084,000
Revolving Credit Facility
Debt
Total debt outstanding		$ 0	$ 0
Interest Rate		0.00%	0.00%
Term Loan Facility
Debt
Total debt outstanding		$ 2,840,250,000	$ 2,847,400,000
Interest Rate		3.61%	3.626%
Senior Unsecured Notes 2024 [Member]
Debt
Total debt outstanding		$ 700,000,000	$ 700,000,000
Interest Rate		4.50%	4.50%
DRG Acquisition - Term Loan
Debt
Total debt outstanding	360,000
Bridge Facility - DRG Acquisition
Debt
Total debt outstanding	1,500,000
Sublimit	$ 950,000