UNCONSOLIDATED AFFILIATES AND COST METHOD INVESTMENT - Cost Method Investments (Details) $ in Thousands	3 Months Ended
Dec. 31, 2016 USD ($)
Jinsheng
Equity Securities without Readily Determinable Fair Value [Line Items]
Payments received for redemption of interest	$ 15,538
Cost method investments	5,325
Gain on cost-method investment	10,136
OTTI recognized on cost-method investment	$ 5,306
Jinsheng
Equity Securities without Readily Determinable Fair Value [Line Items]
Ownership interest in cost method investment (as a percent)	6.20%

Equity Securities without Readily Determinable Fair Value, Payments Received for Redemption of Interest

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- Definition

Amount of investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117539-209714

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Amount of cumulative impairment loss on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117539-209714

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Amount of cumulative gain from upward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84241550&loc=SL75117539-209714

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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