DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative 1) (Details) $ in Millions	Nov. 30, 2018 USD ($)
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Contracted not recognized revenue	$ 46.6
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2018-12-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation expect to recognize in percentage	18.00%
Revenue, remaining Performance obligation, expected timing of satisfaction, year	2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-03-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation expect to recognize in percentage	36.00%
Revenue, remaining Performance obligation, expected timing of satisfaction, year	2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-03-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation expect to recognize in percentage	25.00%
Revenue, remaining Performance obligation, expected timing of satisfaction, year	2021
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2018-12-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining Performance obligation, expected timing of satisfaction, period	1 year
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-03-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining Performance obligation, expected timing of satisfaction, period	1 year
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-03-01
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Revenue, remaining Performance obligation, expected timing of satisfaction, period	1 year