Income Taxes - Schedule of income tax benefit of TRSs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Current	$ 439	$ (150)	$ 413
Deferred	8	(1,439)	3,191
Income tax benefit (expense)	$ 447	$ (1,589)	$ 3,604