Borrowings - Global Credit Revolving Credit Facility (Details) - USD ($)	1 Months Ended	12 Months Ended
	Aug. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jul. 31, 2023
Debt Instrument [Line Items]
Repayments under credit facility		$ 0	$ 0	$ 70,000,000.0
Interest		123,800,000	110,400,000	113,300,000
Revolving Credit Facililty
Debt Instrument [Line Items]
Borrowing capacity		1,000,000,000
Outstanding borrowing		0
Interest		$ 0	0	0
Revolving Credit Facililty | SOFR
Debt Instrument [Line Items]
Applicable margin over base rate		0.10%
Revolving Credit Facililty | Base Rate
Debt Instrument [Line Items]
Applicable margin over base rate		0.50%
Revolving Credit Facililty | Global Credit Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity	$ 300,000,000	$ 200,000,000			$ 250,000,000
Outstanding borrowing		0	0
Borrowings under credit facility		0	0	70,000,000
Repayments under credit facility				70,000,000
Borrowings outstanding				0
Interest		$ 0	$ 0	$ 0
Revolving Credit Facililty | Global Credit Revolving Credit Facility | SOFR
Debt Instrument [Line Items]
Applicable margin over base rate	2.00%
Revolving Credit Facililty | Global Credit Revolving Credit Facility | Base Rate
Debt Instrument [Line Items]
Applicable margin over base rate	1.00%