Loans Held for Investment and Allowance for Credit Losses on Loans - Summary of Rental Income and Operating Expenses (Details) - Real Estate Investment [Member] - Commercial Real Estate [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Rental income	$ 2,911	$ 2,437	$ 8,379	$ 7,750
Operating expense	$ 2,690	$ 2,381	$ 8,038	$ 7,120