Offsetting Assets and Liabilities - Offsetting Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Securities loaned
Gross Amounts of Recognized Liabilities		$ 272,580
Gross Amounts Offset in the Statement of Financial Condition		0
Net Amounts of Liabilities Presented in the Statement of Financial Condition		272,580
Financial Instruments Collateral		(267,053)
Cash Collateral Pledged		0
Net Amount		5,527
Derivatives
Cash Collateral Pledged	$ (5,600)	(4,200)
Securities loaned
Securities loaned
Gross Amounts of Recognized Liabilities	144,044
Gross Amounts Offset in the Statement of Financial Condition	0
Net Amounts of Liabilities Presented in the Statement of Financial Condition	144,044
Financial Instruments Collateral	(142,216)
Cash Collateral Pledged	0
Net Amount	1,828
Derivatives
Derivatives
Gross Amounts of Recognized Liabilities	14,665	13,712
Gross Amounts Offset in the Statement of Financial Condition	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Condition	14,665	13,712
Financial Instruments Collateral	0	0
Cash Collateral Pledged	(5,635)	(4,158)
Net Amount	$ 9,030	$ 9,554