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v3.24.3

NOTES PAYABLE - DIRECT CORPORATE OBLIGATIONS - NARRATIVE (Details) - USD ($) | May 13, 2024 | Jul. 16, 2021 | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Outstanding amount |  |  | $ 1,832,900,000 | $ 1,140,500,000
Senior Notes | 6.450% Senior Notes due June 2034 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Aggregate principal amount | $ 700,000,000 |  |  |
Interest rate | 6.45% |  | 6.45% |
Debt default, percentage of principal amount outstanding | 25.00% |  |  |
Outstanding amount |  |  | $ 700,000,000.0 | 0
Senior Notes | 6.450% Senior Notes due June 2034 | Debt Instrument, Redemption, Period One |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Redemption price, percent | 100.00% |  |  |
Redemption day year | 360 days |  |  |
Redemption day month | 30 days |  |  |
Senior Notes | 5.250% Senior Notes due May 2025 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate |  |  | 5.25% |
Outstanding amount |  |  | $ 500,000,000.0 | 500,000,000.0
Senior Notes | US Treasury (UST) Interest Rate | 6.450% Senior Notes due June 2034 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Discount rate used to determine redemption amount | 0.30% |  |  |
Line of Credit | Revolving Credit Agreement |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Outstanding amount |  |  | $ 0 | $ 0
Line of credit maximum borrowing capacity |  | $ 250,000,000.0 |  |
Total capitalization percentage |  | 15.00% |  |
Debt covenant, required minimum debt to total capitalization ratio |  | 35.00% |  |
Debt covenant, actual debt to total capitalization ratio at period end |  |  | 31.30% |
Debt covenant, minimum required consolidated net worth, component one, amount |  | $ 2,674,000,000 |  |
Debt covenant, minimum required consolidated net worth, component two, as a percent of net equity proceeds received from issuance and sale of equity interests |  | 25.00% |  |
Debt covenant, actual consolidated net worth at period end |  |  | $ 3,803,800,000 |
Debt covenant, required minimum consolidated net worth, amount |  |  | $ 2,698,100,000 |
Line of Credit | Revolving Credit Agreement | SOFR | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.375% |  |
Line of Credit | Revolving Credit Agreement | SOFR | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 2.125% |  |
Line of Credit | Revolving Credit Agreement | Base Rate | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.375% |  |
Line of Credit | Revolving Credit Agreement | Base Rate | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.125% |  |
Line of Credit | Revolving Credit Agreement | Credit Spread Adjustment (SOFR) |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.10% |  |

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