Annual report pursuant to Section 13 and 15(d)

STOCK COMPENSATION PLANS (Approved Grants) (Details)

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STOCK COMPENSATION PLANS (Approved Grants) (Details) - shares
 12 Months Ended
Jun. 26, 2017
Feb. 21, 2017
Feb. 09, 2015
Jan. 12, 2015
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted         1,999,562    
Stock Issued During Period, Shares, Restricted Stock Award, Gross         400,000    
Performance Shares [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted 249,106 553,725 410,105 464,470 802,831 0 874,575
Employee Stock Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted         0 0 412,710
A&R 2015 Equity Plan [Member] | Performance Shares [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted         249,106    
A&R 2015 Equity Plan [Member] | Restricted Stock Units (RSUs) [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock Issued During Period, Shares, Restricted Stock Award, Gross         532,358    
A&R 2015 Equity Plan [Member] | Employee Stock Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted         0    
2015 Equity Plan [Member] | Performance Shares [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted         553,725 0 0
2015 Equity Plan [Member] | Restricted Stock Units (RSUs) [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock Issued During Period, Shares, Restricted Stock Award, Gross         553,725 3,406,716 1,473,184
2015 Equity Plan [Member] | Employee Stock Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted         0 0 0
2012 Equity Plan [Member] | Performance Shares [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted             874,575
2012 Equity Plan [Member] | Restricted Stock Units (RSUs) [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock Issued During Period, Shares, Restricted Stock Award, Gross             874,575
2012 Equity Plan [Member] | Employee Stock Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of performance shares granted             412,710