Shareholders' Equity (Details) - USD ($) $ in Millions |
6 Months Ended | |||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Mar. 31, 2026 |
Sep. 19, 2022 |
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| Stock Repurchase Program | ||||
| Shareholders' Equity [Line Items] | ||||
| Common stock repurchase authorized amount | $ 1,500.0 | |||
| Share repurchase program, increased authorized, amount | $ 1,000.0 | |||
| Number of shares repurchased (in shares) | 9,359,498 | 20,269,450 | ||
| Repurchase of the Company’s common shares | $ 281.2 | $ 208.3 | ||
| Share repurchase program, remaining authorized, amount | 609.3 | |||
| Cowen | At-the-Market Equity Offering Program | ||||
| Shareholders' Equity [Line Items] | ||||
| Common shares aggregate offering price authorized | $ 400.0 | |||
| Common shares aggregate offering price authorized, remaining capacity available | $ 400.0 | |||
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- Definition The common shares aggregate offering price authorized remaining capacity to issue under equity offering program. No definition available.
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- Definition The common shares aggregate offering price authorized to issue under equity offering program. No definition available.
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- Definition Share Repurchase Program, Increased Authorized, Amount No definition available.
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- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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