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Shareholders' Equity - Schedule of Forward Sales Agreement (Details) $ / shares in Units, $ in Thousands | 6 Months Ended
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Mar. 31, 2025 USD ($) $ / shares shares
Forward Contract Indexed to Issuer's Equity [Line Items] |
Shares available (in shares) | shares | 12,598,259
Net proceeds available | $ | $ 1,659,625
Forward price (USD per share) | $ / shares | $ 131.73
Forward Sales Equity Agreement Maturing Quarter Ended June 30, 2025 |
Forward Contract Indexed to Issuer's Equity [Line Items] |
Shares available (in shares) | shares | 630,514
Net proceeds available | $ | $ 73,406
Forward price (USD per share) | $ / shares | $ 116.42
Forward Sales Equity Agreement Maturing Quarter Ended September 30, 2025 |
Forward Contract Indexed to Issuer's Equity [Line Items] |
Shares available (in shares) | shares | 815,655
Net proceeds available | $ | $ 96,313
Forward price (USD per share) | $ / shares | $ 118.08
Forward Sales Equity Agreement Maturing Quarter Ended December 31, 2025 |
Forward Contract Indexed to Issuer's Equity [Line Items] |
Shares available (in shares) | shares | 2,344,567
Net proceeds available | $ | $ 297,650
Forward price (USD per share) | $ / shares | $ 126.95
Forward Sales Equity Agreement Maturing Quarter Ended March 31, 2026 |
Forward Contract Indexed to Issuer's Equity [Line Items] |
Shares available (in shares) | shares | 3,627,033
Net proceeds available | $ | $ 463,284
Forward price (USD per share) | $ / shares | $ 127.73
Forward Sales Equity Agreement Maturing Quarter June 30, 2026 |
Forward Contract Indexed to Issuer's Equity [Line Items] |
Shares available (in shares) | shares | 669,043
Net proceeds available | $ | $ 89,150
Forward price (USD per share) | $ / shares | $ 133.25
Forward Sales Equity Agreement Maturing Quarter December 31, 2026 |
Forward Contract Indexed to Issuer's Equity [Line Items] |
Shares available (in shares) | shares | 3,392,352
Net proceeds available | $ | $ 472,749
Forward price (USD per share) | $ / shares | $ 139.36
Forward Sales Equity Agreement Maturing Quarter March 31, 2027 |
Forward Contract Indexed to Issuer's Equity [Line Items] |
Shares available (in shares) | shares | 1,119,095
Net proceeds available | $ | $ 167,073
Forward price (USD per share) | $ / shares | $ 149.29

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- Definition The per share price of the Company's stock at which the contract holder of the freestanding contract has the right to purchase or sell the Company's stock at a future date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 5 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(1) -SubTopic 10 -Topic 480 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481648/480-10-50-2 + Details
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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. + References No definition available. + Details
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- Definition Amount that would be paid upon settlement of forward contract indexed to equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (d) -SubTopic 40 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
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- Definition Number of shares as a settlement alternative for each freestanding forward contract. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (d) -SubTopic 40 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
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