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Credit Facility and Other Long Term Debt - Components of Convertible Senior Notes (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Mar. 31, 2022	May 31, 2020	Jun. 30, 2016
Debt Instrument [Line Items]
Total principal payments due	$ 680,919	$ 680,919
Total amount outstanding	673,382	672,286
Credit Facility borrowings	0	0
Non-current portion of long-term debt	673,382	672,286
Credit Facility
Debt Instrument [Line Items]
Unamortized debt issuance costs - Credit facility	$ (4,127)	(4,623)
1.50% Convertible Senior Notes
Debt Instrument [Line Items]
Stated interest rate, percentage	1.50%		1.50%
1.50% Convertible Senior Notes \| Convertible Notes
Debt Instrument [Line Items]
Total principal payments due	$ 80,919	80,919
Unamortized debt issuance costs - Credit facility	$ (472)	(677)
Stated interest rate, percentage	1.50%
3.25% Senior Notes \| Senior Notes
Debt Instrument [Line Items]
Total principal payments due	$ 600,000	600,000
Unamortized debt discount	(941)	(1,067)
Unamortized debt issuance costs - Credit facility	$ (1,997)	$ (2,266)		$ (5,400)
Stated interest rate, percentage	3.25%			3.25%