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Disclosures About Offsetting Assets and Liabilities - Financial Liabilities and Derivative Liabilities that are Subject to Offset (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Offsetting Liabilities [Line Items] |  |
Gross amounts of recognized liabilities, Securities lending | $ (178,928) | $ (135,693)
Net amounts presented in the Statement of Financial Condition, Securities lending | (178,928) | (135,693)
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities lending | 74,488 | 23,691
Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities lending | 104,434 | 111,981
Securities lending, Net amount | (6) | (21)
Gross amounts of recognized liabilities, Securities purchased under agreements to resell | (580,170) | (417,644)
Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell | (580,170) | (417,644)
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities purchased under agreements to resell | 63,771 | 23,441
Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities purchased under agreements to resell | 516,399 | 394,203
Gross amounts of recognized liabilities | (869,923) | (671,988)
Net amounts presented in the Statement of Financial Condition | (869,923) | (671,988)
Gross amounts not offset in the Statement of Financial Position, Financial instruments | 143,882 | 61,688
Gross amounts not offset in the Statement of Financial Condition, Collateral pledged | 651,559 | 528,845
Net amount | (74,482) | (81,455)
Interest Rate Contracts [Member] |  |
Offsetting Liabilities [Line Items] |  |
Gross amounts of recognized liabilities | (110,825) | (118,651)
Net amounts presented in the Statement of Financial Condition | (110,825) | (118,651)
Gross amounts not offset in the Statement of Financial Position, Financial instruments | 5,623 | 14,556
Gross amounts not offset in the Statement of Financial Condition, Collateral pledged | 30,726 | 22,661
Offsetting liability interest rate contracts net | $ (74,476) | $ (81,434)

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