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
Feb. 19, 2019
Feb. 21, 2018
Jun. 26, 2017
Feb. 21, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares granted         1,285,419    
Performance Shares [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares granted 572,104 675,599 249,106 553,725 572,104 675,599 802,831
A&R 2015 Equity Plan [Member] | Performance Shares [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares granted         572,104 675,599 249,106
A&R 2015 Equity Plan [Member] | Restricted Stock Units (RSUs) [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares granted         572,104 685,599 532,358
Amended 2015 Equity Plan [Domain] | Performance Shares [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares granted             553,725
Amended 2015 Equity Plan [Domain] | Restricted Stock Units (RSUs) [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares granted             553,725