DERIVATIVE INSTRUMENTS - Non-designated Hedges Interest Rate Swaps (Details) $ in Millions	Dec. 31, 2016 USD ($) interest_rate_swap	Dec. 31, 2015 USD ($)
Derivative [Line Items]
Number of interest rate swap agreements \| interest_rate_swap	2
Interest Rate Swap
Derivative [Line Items]
Fixed rate on derivative	3.135%
Not Designated as Hedging Instrument \| September 1, 2021 \| Other non-current liabilities
Derivative [Line Items]
Fixed rate on derivative	5.95%
Notional Amount	$ 11.2
Fair value of interest rate swap liability	$ (1.3)	$ (1.7)
Not Designated as Hedging Instrument \| March 1, 2021 \| Other non-current liabilities
Derivative [Line Items]
Fixed rate on derivative	5.98%
Notional Amount	$ 6.1
Fair value of interest rate swap liability	(0.5)	(0.8)
Not Designated as Hedging Instrument \| Interest Rate Swap \| Other non-current liabilities
Derivative [Line Items]
Notional Amount	17.3
Fair value of interest rate swap liability	$ (1.8)	$ (2.5)

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

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

No definition available.

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- Definition

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

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