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v3.24.4

Capitalization (Narrative) (Details) $ / shares in Units, $ in Thousands | 3 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 USD ($) $ / shares shares | Jan. 30, 2025 bank | Sep. 30, 2024 USD ($) | May 31, 2024 USD ($) bank | Apr. 01, 2024 USD ($) | Mar. 08, 2024 USD ($) | Feb. 29, 2024 bank | Feb. 14, 2024 USD ($) lender | Feb. 28, 2022 USD ($) bank
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  | $ 200,000 |  |  |
Share Repurchases (in shares) | shares | 393,038 |  |  |  |  |  |  |  |
Current Portion of Long-Term Debt | $ 500,000 |  | $ 500,000 |  |  |  |  |  |
Share Repurchase Plan |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Share Repurchases (in shares) | shares | 548,596 |  |  |  |  |  |  |  |
Share repurchase program, average cost per share (in dollars per share) | $ / shares | $ 61.27 |  |  |  |  |  |  |  |
Share Repurchases | $ 33,900 |  |  |  |  |  |  |  |
Credit Agreement |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of banks In syndicate | bank |  |  |  | 3 |  |  | 11 |  | 12
Maximum borrowing capacity |  |  |  | $ 1,000,000 |  |  |  |  | $ 1,000,000
Extended term of credit agreement |  |  |  |  |  |  | 1 year |  |
Credit Agreement | Subsequent Event |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Number of banks In syndicate | bank |  | 11 |  |  |  |  |  |  |
Extended term of credit agreement |  | 1 year |  |  |  |  |  |  |
7.38% Notes Due June 2025 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Current Portion of Long-Term Debt | $ 50,000 |  | $ 50,000 |  |  |  |  |  |
Long-term debt, interest rate | 7.38% |  | 7.38% |  |  |  |  |  |
5.20% Notes Due July 2025 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Current Portion of Long-Term Debt | $ 450,000 |  | $ 450,000 |  |  |  |  |  |
Long-term debt, interest rate | 5.20% |  | 5.20% |  |  |  |  |  |
Term Loan Agreement |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  | $ 300,000 |
Number of lenders | lender |  |  |  |  |  |  |  | 6 |
Long-term debt, face amount |  |  |  |  | $ 300,000 |  |  |  |
Proceeds from debt, net of issuance costs | $ 299,400 |  |  |  |  |  |  |  |
Rate adjustment to SOFR | 0.0010 |  |  |  |  |  |  |  |
Spread on variable rate | 1.375% |  |  |  |  |  |  |  |
Term Loan Agreement | 5.78% Through February 2025 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt, variable interest rate | 5.78% |  |  |  |  |  |  |  |

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