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v3.25.3

Debt - Additional Information (Details) |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 05, 2025 USD ($) day $ / shares | Apr. 15, 2025 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Apr. 14, 2025 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Threshold says prior to the maturity date for redemption | day | 41 |  |  |  |  |  |
Call Option |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Strike price (in dollars per share) | $ / shares | $ 236.88 |  |  |  |  |  |
Initial cap price (in dollars per share) | $ / shares | $ 357.56 |  |  |  |  |  |
Convertible Senior Notes Due 2030 | Convertible Debt |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Principal amount issued | $ 900,000,000 |  |  |  |  |  |
Stated interest rate percentage | 0.00% |  |  |  |  |  |
Maximum face amount for over-allotment option | $ 115,000,000 |  |  |  |  |  |
Maximum special and additional interest percentage | 0.50% |  |  |  |  |  |
Proceeds from issuance of debt, net of issuance costs | $ 878,621,000 |  |  |  |  |  |
Conversion ratio | 0.0042215 |  |  |  |  |  |
Conversion price (in dollars per share) | $ / shares | $ 236.88 |  |  |  |  |  |
Threshold of convertible notes outstanding for partial redemption | $ 100,000,000 |  |  |  |  |  |
Amortization of debt issuance costs |  |  | $ 306,000 |  | $ 306,000 |  |
Unamortized debt issuance costs |  |  | 21,073,000 |  | $ 21,073,000 |  |
Effective interest rate percentage |  |  |  |  | 0.48% |  |
Convertible Senior Notes Due 2030 | Convertible Debt | Debt Conversion Terms One |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Threshold percentage of stock price trigger | 130.00% |  |  |  |  |  |
Threshold trading days | day | 20 |  |  |  |  |  |
Threshold consecutive trading days | day | 30 |  |  |  |  |  |
Convertible Senior Notes Due 2030 | Convertible Debt | Debt Conversion Terms Two |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Threshold percentage of stock price trigger | 98.00% |  |  |  |  |  |
Threshold trading days | day | 5 |  |  |  |  |  |
Threshold consecutive trading days | day | 10 |  |  |  |  |  |
Senior Secured Revolving Credit Facility | Revolving credit facility |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Amortization of debt issuance costs |  |  | 102,000 | $ 29,000 | $ 187,000 | $ 58,000 |
Borrowing capacity |  | $ 300,000,000 |  |  |  |  | $ 100,000,000
Debt term |  | 5 years |  |  |  |  |
Borrowings under the credit facility |  |  | 0 |  | 0 |  |
Unamortized debt issuance costs |  |  | $ 1,857,000 |  | $ 1,857,000 |  |
Senior Secured Revolving Credit Facility | Revolving credit facility | Minimum |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Annual unused commitment fee rate |  | 0.25% |  |  |  |  |
Senior Secured Revolving Credit Facility | Revolving credit facility | Minimum | SOFR |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.50% |  |  |  |  |
Senior Secured Revolving Credit Facility | Revolving credit facility | Minimum | Prime Rate |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.50% |  |  |  |  |
Senior Secured Revolving Credit Facility | Revolving credit facility | Maximum |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Annual unused commitment fee rate |  | 0.35% |  |  |  |  |
Senior Secured Revolving Credit Facility | Revolving credit facility | Maximum | SOFR |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  | 2.00% |  |  |  |  |
Senior Secured Revolving Credit Facility | Revolving credit facility | Maximum | Prime Rate |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |  |  |

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