REVENUES (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Amount		$ 398,300
Percentage of Revenue Expected to be Recognized in Next Twelve Months		83.00%
Contract with Customer, Asset, Net		$ 87,000
Contract with Customer, Liability		51,000
Contract with Customer, Asset, Net, Current		94,082	$ 53,034
Contract with Customer, Liability, Current		$ 53,251	$ 49,035
Scenario, Forecast [Member]
Disaggregation of Revenue [Line Items]
Contract with Customer, Liability, Revenue Recognized	$ 20,000

Percentage of revenue expected to be realized in next twelve months.

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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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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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

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