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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Operating Expenses (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
(Gain) loss on disposition of long-lived assets	$ 2.6

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- References

No definition available.

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- Definition

Amount of gain (loss) on sale or disposal of other assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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