Notes Receivable, Net (Narrative) (Details)	9 Months Ended
	Sep. 30, 2019
Notes receivable, maturity date description	The notes mature from 2020 through 2022
Minimum [Member]
Notes receivable term	24 months
Notes receivable interest rate	11.60%
Maximum [Member]
Notes receivable term	42 months
Notes receivable interest rate	16.49%