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OTHER LONG-TERM DEBT (Credit Line) (Narrative) (Details) - Jazz [Member] - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Feb. 28, 2018	Feb. 29, 2016	Dec. 31, 2017
Line of Credit Facility [Line Items]
Term			5 years
Maximum borrowing amount			$ 70,000
Borrowing capacity			58,000
Letters of credit outstanding amount			$ 1,000
Maturity date			Dec. 31, 2018
Subsequent Event [Member]
Line of Credit Facility [Line Items]
Term	5 years
Borrowing capacity	$ 70,000
Prime Rate [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Basis spread over variable interest rate		0.25%
Prime Rate [Member] | Minimum [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Basis spread over variable interest rate	0.00%
Prime Rate [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Basis spread over variable interest rate		0.75%
Prime Rate [Member] | Maximum [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Basis spread over variable interest rate	0.50%
LIBOR [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Basis spread over variable interest rate		1.50%
LIBOR [Member] | Minimum [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Basis spread over variable interest rate	1.25%
LIBOR [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Basis spread over variable interest rate		2.00%
LIBOR [Member] | Maximum [Member] | Subsequent Event [Member]
Line of Credit Facility [Line Items]
Basis spread over variable interest rate	1.75%

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Balance Type:	credit
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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.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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X

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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