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
	Mar. 31, 2023	Mar. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Rental income	$ 2,690	$ 2,670
Operating expense	$ 2,381	$ 2,439