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Debt - Summary of Debt (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Short-term debt |  |
Revolving Credit Facility | $ 249,000,000.0 | $ 249,000,000.0
Long-term debt |  |
Long-term debt | 249,000,000.0 | 253,600,000
Total | 498,000,000.0 | 502,600,000
4.50% Senior Notes |  |
Long-term debt |  |
Long-term debt | $ 249,000,000.0 | $ 248,600,000
Interest Rates | 4.50% | 4.50%
Principal amount | $ 250,000,000.0 | $ 250,000,000.0
Unamortized discount | 200,000 | 300,000
Unamortized debt issuance costs | 800,000 | 1,100,000
FHLB borrowings |  |
Long-term debt |  |
Long-term debt | $ 0 | $ 5,000,000.0
Interest Rates | 0.00% |

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