Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Allowance for losses on notes	$ 2,674	$ 2,751
Basis difference in fixed assets	1,426	0
Deferred gain	5,168	5,199
Foreign currency translations	3,818	1,522
Net operating loss carryforward	15,234	18,371
Total deferred tax assets	28,320	27,843
Less: valuation allowance	(28,320)	(21,180)
Total net deferred tax assets	0	6,663
Deferred tax liabilities:
Deferred gain	0	0
Basis differences for fixed assets	0	6,663
Total deferred tax liability	0	6,663
Current net deferred tax asset	0	6,663
Long-Term net deferred tax liability	0	(6,663)
Net deferred tax asset (liability)	$ 0	$ 0