Securities Held-To-Maturity - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) bond	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Schedule of Held-to-Maturity Securities [Line Items]
Held-to-maturity securities, face value	$ 231,708		$ 231,708		$ 234,255
Interest income, including the amortization of discount	3,900	$ 5,100	7,100	$ 10,300
APL certificates
Schedule of Held-to-Maturity Securities [Line Items]
Held-to-maturity securities, face value	192,791		192,791		$ 192,791
Amount purchased at a discount	$ 119,000		$ 119,000
Weighted average variable interest rate (as a percent)	3.94%		3.94%
Estimated weighted average remaining maturity period			7 years 18 days
Weighted average fixed interest rate			8.85%		8.85%
After one year through five years	$ 8,200		$ 8,200
After five years through ten years	$ 184,600		$ 184,600
APL certificates | Minimum
Schedule of Held-to-Maturity Securities [Line Items]
Securities maturity term			5 years
APL certificates | Maximum
Schedule of Held-to-Maturity Securities [Line Items]
Securities maturity term			10 years
Seven B Piece Bonds
Schedule of Held-to-Maturity Securities [Line Items]
Estimated weighted average remaining maturity period			6 years 1 month 6 days
Bonds retained percentage			49.00%
Initial face value of bonds purchased			$ 106,200
Number of B Piece bonds | bond			7
Discounted value of bonds purchased			$ 74,700
Held-to-maturity securities sold, percentage	51.00%		51.00%
Agency B Piece Bonds
Schedule of Held-to-Maturity Securities [Line Items]
Weighted average variable interest rate (as a percent)	3.74%		3.74%		12.20%
After one year through five years	$ 14,800		$ 14,800
Weighted average effective interest rate (as a percent)	11.31%		11.31%
Within one year	$ 7,600		$ 7,600
After ten years	$ 16,500		$ 16,500