STOCKHOLDERS' EQUITY - Redemption of Preferred Stock (Details) - Series A Preferred Stock $ in Millions	6 Months Ended
Jun. 30, 2017 USD ($) shares
Class of Stock [Line Items]
Value of shares redeemed	$ 13.8
Numbers of shares redeemed (in shares) \| shares	83,502
Reduction in the value of the preferred stock	$ 8.4
Reduction in the accretive value of the preferred stock	5.4
Aggregate proceeds from private placement	$ 10.2

Decrease in Accretive Value of Preferred Stock Due to Stock Redeemed

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- Definition

Decrease in Value of Preferred Stock Due to Stock Redeemed

+ References

No definition available.

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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.

+ References

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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

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Equity impact of the value of stock bought back by the entity at the exercise price or redemption price.

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