Offsetting Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivative assets
Gross Amounts Recognized	$ 133,016	$ 108,621
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts Presented in the Statement of Financial Position	133,016	108,621
Derivative assets, Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	82,124	69,221
Derivative assets, Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received/Pledged	0	0
Total net derivative assets	50,892	39,400
Derivative liabilities
Gross Amounts Recognized	85,657	91,404
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts Presented in the Statement of Financial Position	85,657	91,404
Derivative liabilities, Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	82,124	69,221
Derivative liabilities, Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received/Pledged	3,533	22,183
Total net derivative liabilities	0	0
Repurchase agreements
Gross Amounts Recognized	10,233,082	10,799,120
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts Presented in the Statement of Financial Position	10,233,082	10,799,120
Repurchase agreements, Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	10,233,082	10,799,120
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	10,318,739	10,890,524
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amounts Presented in the Statement of Financial Position	10,318,739	10,890,524
Liabilities, Gross Amounts Not Offset in the Statements of Financial Position, Financial Instruments	10,315,206	10,868,341
Liabilities, Gross Amounts Not Offset in the Statements of Financial Position, Cash Collateral Received/Pledged	3,533	22,183
Total net liabilities	$ 0	$ 0