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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]  
Schedule of Weighted Average Number of Shares
The following table sets forth the computation of the diluted weighted-average number of shares outstanding for all periods presented:
 
Year Ended December 31,
 
Seven Months Ended December 31,
 
Years Ended May 31,
 
2017
 
2016
 
2016
 
2015
 
 
 
 
 
 
 
 
 
(in thousands)
Basic weighted-average number of shares outstanding
154,652

 
153,342

 
132,284

 
134,072

Plus: Dilutive effect of stock options and other share-based awards
876

 
889

 
883

 
850

Diluted weighted-average number of shares outstanding
155,528

 
154,231

 
133,167

 
134,922