STOCK-BASED COMPENSATION (Summary of Nonemployee Director Stock Award Activity) (Details) - Non-employee Directors' Stock-Based Compensation Plans [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-employee director compensation, cash	$ 193,750	$ 163,750
Weighted - average Grant Date Share Price	$ 25.90	$ 32.46
Options Vested	0	0
Directors' Fees Expense	$ 387,500	$ 327,500
Common Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	3,668	1,078
Deferred Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	3,813	3,966