DERIVATIVE INSTRUMENTS (Details 3) - Free-Standing Derivatives - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Effect on income from free-standing derivatives
Realized gains (losses)	$ 2,181	$ 11,354
Unrealized gains (losses)	3,530	(21,570)
Total	5,711	(10,216)
Interest rate swaps
Effect on income from free-standing derivatives
Realized gains (losses)	0	0
Unrealized gains (losses)	1,715	(11,731)
Total	1,715	(11,731)
Foreign exchange forward contracts and options
Effect on income from free-standing derivatives
Realized gains (losses)	2,181	11,212
Unrealized gains (losses)	1,182	(10,242)
Total	3,363	970
Common stock warrants
Effect on income from free-standing derivatives
Realized gains (losses)	0	142
Unrealized gains (losses)	171	0
Total	171	142
Options
Effect on income from free-standing derivatives
Realized gains (losses)	0	0
Unrealized gains (losses)	462	403
Total	$ 462	$ 403

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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