LOANS RECEIVABLE AND INVESTMENTS - Narrative 2 (Details) $ in Millions	3 Months Ended
Mar. 31, 2018 USD ($) loan
Accounts, Notes, Loans and Financing Receivable
Number of loans repaid \| loan	3
Weighted average interest rate	9.90%
Full Repayments on Loans Receivable
Accounts, Notes, Loans and Financing Receivable
Proceeds from collection of loans receivable \| $	$ 125.9

The cash inflow associated with the collection, including prepayments, of loans receivable issued for financing of goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585

Name:	us-gaap_ProceedsFromCollectionOfLoansReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration