Notes Receivable - Components (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Notes receivable activities
Mezzanine loan Funded	$ 6,800
Notes receivable reserve	(204)	$ (128)
Total	20,157	12,715
Mezzanine loan with 12.0% Interest
Notes receivable activities
Mezzanine loan Funded	16,692	9,868
Other loans
Notes receivable activities
Mezzanine loan Funded	$ 3,669	$ 2,975

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant