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CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS - Short-term Investments (Details) $ in Millions | Dec. 31, 2017 USD ($)
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CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS |
Hold to maturity investment | $ 3.1

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- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26626-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558 + Details
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Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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