INVESTMENTS IN EXCESS MORTGAGE SERVICING RIGHTS - Narrative (Details)	3 Months Ended
Mar. 31, 2017
Excess MSRs Investees [Member] \| MSRs [Member]
Investment [Line Items]
Weighted average discount rate, used to value investments in excess MSRs	9.80%

The average discount rate applied to insurance contracts to determine future policy benefits to be paid to or on behalf of policyholders.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65670685&loc=d3e14881-158438

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration