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SIGNIFICANT ACCOUNTING POLICIES (Revenue Recognition and Deferred Revenue) (Details) | 12 Months Ended
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Dec. 31, 2017
Minimum |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |
Service interval | 49 days
Maximum |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |
Service interval | 98 days

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- Definition Revenue Recognition, Multiple Deliverable Arrangements, Service Interval Period + References No definition available. + Details
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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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Period Type: | duration

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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