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SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING STANDARDS - Concentrations of Risk (Details)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Concentration Risk [Line Items]
Document Period End Date	Sep. 30, 2019
Minimum
Concentration Risk [Line Items]
Financial institutions agreement, term	3 years
Maximum
Concentration Risk [Line Items]
Financial institutions agreement, term	7 years
One Customer | Customer Concentration Risk | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk	10.00%
Two Customer [Member] [Member] | Customer Concentration Risk | Accounts Receivable
Concentration Risk [Line Items]
Concentration risk	11.00%
Bank of America | Supplier Concentration Risk | Financial Institution Partner
Concentration Risk [Line Items]
Concentration risk	38.00%	68.00%
Chase | Supplier Concentration Risk | Financial Institution Partner
Concentration Risk [Line Items]
Concentration risk	40.00%	0.00%

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The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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