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Disclosures About Offsetting Assets and Liabilities - Financial Liabilities and Derivative Liabilities that are Subject to Offset (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
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Offsetting Liabilities [Line Items] |  |
Gross amounts of recognized liabilities, Securities lending | $ (100,973) | $ (68,105)
Net amounts presented in the Statement of Financial Condition, Securities lending | (100,973) | (68,105)
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities lending | 30,667 | 46,647
Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities lending | 70,290 | 21,448
Securities lending, Net amount | (16) | (10)
Gross amounts of recognized liabilities, Securities purchased under agreements to resell | (429,726) | (212,011)
Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell | (429,726) | (212,011)
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities purchased under agreements to resell | 24,355 | 12,028
Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities purchased under agreements to resell | 405,371 | 199,983
Gross amounts of recognized liabilities | (647,457) | (422,144)
Net amounts presented in the Statement of Financial Condition | (647,457) | (422,144)
Gross amounts not offset in the Statement of Financial Position, Financial instruments | 64,294 | 60,634
Gross amounts not offset in the Statement of Financial Condition, Collateral pledged | 496,635 | 247,281
Net amount | (86,528) | (114,229)
Interest Rate Contract [Member] |  |
Offsetting Liabilities [Line Items] |  |
Gross amounts of recognized liabilities | (116,758) | (142,028)
Net amounts presented in the Statement of Financial Condition | (116,758) | (142,028)
Gross amounts not offset in the Statement of Financial Position, Financial instruments | 9,272 | 1,959
Gross amounts not offset in the Statement of Financial Condition, Collateral pledged | 20,974 | 25,850
Offsetting liability interest rate contracts net | $ (86,512) | $ (114,219)

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