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REVENUE Variable Consideration (Details) | 3 Months Ended | 6 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Revenue, Methods, Inputs, and Assumptions Used [Abstract] |  |  |  |
Revenue, Information Used to Assess Variable Consideration Constraint | 31.7 million | 28.5 million | 54.9 million | 53.8 million

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- Definition Description of methods, inputs, and assumptions used to assess estimate of variable consideration with probability of subsequent revenue reversal. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130566-203045 + Details
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- References No definition available. + Details
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