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v3.24.0.1

Debt - Narrative (Details) - USD ($) |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 15, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Jul. 12, 2021 | Jul. 11, 2021
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Principal repayment on Revolving Credit Facility |  | $ 249,000,000.0 | $ 0 |  | $ 0 |  |  |
Principal borrowings on Revolving Credit Facility |  | $ 0 | $ 0 | [1] | $ 114,000,000.0 | [1] |  |
Purchase of FHLB activity-based common stock as percentage of borrowing, percentage, authorized |  | 15.00% | 25.00% |  |  |  |  |
Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Principal amount |  | $ 250,000,000 |  |  |  |  |  |
Stated rate |  | 4.50% |  |  |  |  |  |
Effective interest percentage |  | 4.53% |  |  |  |  |  |
Senior Notes | 2023 Senior Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Principal amount | $ 300,000,000 | $ 300,000,000.0 | $ 300,000,000.0 |  |  |  |  |
Stated rate | 7.25% | 7.25% |  |  |  |  |  |
Effective interest percentage | 7.29% |  |  |  |  |  |  |
Debt redemption price, percentage | 100.00% |  |  |  |  |  |  |
Debt redemption price, interest discounted at treasury yield margin | 0.45% |  |  |  |  |  |  |
Line of Credit |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Borrowing capacity |  |  |  |  |  |  | $ 325,000,000 | $ 225,000,000
Commitment fee percent |  | 0.15% |  |  |  |  |  |
Line of Credit | SOFR |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.15% |  |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Principal repayment on Revolving Credit Facility | $ 249,000,000 |  |  |  |  |  |  |
Principal borrowings on Revolving Credit Facility |  | $ 114,000,000 |  |  |  |  |  |
[1] | Recast for the adoption of ASU 2018-12. See Note 1 of the Consolidated Financial Statements

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