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SIGNIFICANT ACCOUNTING POLICIES - FISCAL YEAR (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SIGNIFICANT ACCOUNTING POLICIES
Fiscal Period Duration	364 days	364 days	371 days

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- References

No definition available.

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Period Type:	duration

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- Definition

Duration of a fiscal period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter.

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No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration