Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets
Net loss	$ 1,403	$ 738
Net right-of-use assets and liabilities	9,660	4,588
Other	177	363
Total deferred tax assets		475
Valuation allowance	(771)	(873)
Total net deferred tax assets	10,469	5,291
Deferred tax liabilities
Property and equipment	(1,299)	(822)
Intangible assets	(5,859)
Total deferred tax liabilities	(9,841)	(4,469)
Total net deferred tax liabilities	(16,999)	$ (5,291)
Total adjusted deferred tax liabilities	$ (6,530)