Variable Interest Entities and Acquisition of Assets and Liabilities (Details) $ in Thousands		1 Months Ended			9 Months Ended
	May 16, 2017 USD ($) installment	Oct. 31, 2017 USD ($)	May 31, 2017 USD ($)	Jul. 31, 2016 USD ($)	Sep. 30, 2017 USD ($)	Nov. 30, 2016 USD ($)
Variable Interest Entity [Line Items]
Cash paid					$ 2,000
YCD
Variable Interest Entity [Line Items]
Assets and liabilities acquired	$ 6,000
Cash paid		$ 900	$ 2,000
Principal amount	$ 3,000
Term of debt	2 years
Interest rate	5.00%
Debt, number of installments | installment	2
Rambler On
Variable Interest Entity [Line Items]
Amount advanced				$ 7,000
Term of promissory note				5 years
Note accrued interest rate				5.00%
Accounts receivable converted to promissory note						$ 7,700