Offsetting Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivative assets
Gross Amounts Recognized	$ 82,916	$ 63,437
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts Presented in the Statement of Financial Position	82,916	63,437
Derivative assets, Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	40,098	41,341
Derivative assets, Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received/Pledged	0	0
Total net derivative assets	42,818	22,096
Derivative liabilities
Gross Amounts Recognized	74,647	102,467
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts Presented in the Statement of Financial Position	74,647	102,467
Derivative liabilities, Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	40,098	41,340
Derivative liabilities, Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received/Pledged	34,549	61,127
Total net derivative liabilities	0	0
Repurchase agreements
Gross Amounts Recognized	9,518,691	10,652,359
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts Presented in the Statement of Financial Position	9,518,691	10,652,359
Repurchase agreements, Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	9,518,691	10,652,359
Repurchase agreements, Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received/Pledged	0	0
Total net repurchase agreements	0	0
Offsetting Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned [Abstract]
Gross Amounts Recognized	9,593,338	10,754,826
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts Presented in the Statement of Financial Position	9,593,338	10,754,826
Liabilities, Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	9,558,789	10,693,699
Liabilities, Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received/Pledged	34,549	61,127
Total net liabilities	$ 0	$ 0