Real Estate Property Held For Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Real estate property held for sale	$ 16,800	$ 0
Kendall Manor, Houston, TX
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Real estate property held for sale	24,500
Book value	$ 16,800