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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reclassifications (Details) - USD ($) $ in Thousands | 7 Months Ended | 12 Months Ended
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Dec. 31, 2016 | May 31, 2016 | May 31, 2015 | May 31, 2014
Accounting Policies [Abstract] |  |  |  |
Amortization of acquisition costs | $ 14,982 | $ 1,776 | $ 0 | $ 0
Capitalized customer acquisition costs |  | $ (12,000) |  |

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- Definition Capitalized Customer Acquisition Costs + References No definition available. + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of capitalized costs associated with acquisition of business. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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