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Borrowings - Schedule of Borrowings (Details) - USD ($)	Dec. 31, 2021	May 28, 2021	Dec. 31, 2020	Apr. 29, 2020	Jun. 13, 2016
Debt Instrument [Line Items]
Total borrowings	$ 1,200,100,000		$ 1,050,200,000
Less current portion	0		100,000
Less deferred debt issuance costs	8,400,000		4,800,000
Less unaccreted debt discount	1,400,000		900,000
Long-term borrowings	$ 1,190,300,000		1,044,400,000
Senior Notes \| 4.20% Senior Notes, repaid in June 2021
Debt Instrument [Line Items]
Stated interest rate	4.20%
Total borrowings	$ 0		350,000,000.0
Senior Notes \| 3.20% Senior Notes, due June 2023
Debt Instrument [Line Items]
Stated interest rate	3.20%				3.20%
Total borrowings	$ 100,000,000.0		100,000,000.0
Senior Notes \| 3.37% Senior Notes, due June 2025
Debt Instrument [Line Items]
Stated interest rate	3.37%				3.37%
Total borrowings	$ 100,000,000.0		100,000,000.0
Senior Notes \| 3.00% Senior Notes, due May 2030
Debt Instrument [Line Items]
Stated interest rate	3.00%
Total borrowings	$ 500,000,000.0		500,000,000.0	$ 500,000,000
Less unaccreted debt discount				$ 900,000
Senior Notes \| 2.625% Senior Notes, due 2031
Debt Instrument [Line Items]
Stated interest rate	2.625%
Less unaccreted debt discount		$ 600,000
Long-term Debt	$ 500,000,000.0		0
Other Borrowings
Debt Instrument [Line Items]
Total borrowings	$ 100,000		$ 200,000