FAIR VALUE (Amount of Activity Pertaining to Level 3 Assets and Liabilities Included in Earnings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Change in unrealized (losses) gains related to assets and liabilities held		$ (6)
Additional realized gains recognized	$ 28,606	21,875
Total net (losses) gains reported in earnings	28,606	21,869
Derivatives
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Change in unrealized (losses) gains related to assets and liabilities held		911
Change in unrealized losses related to assets and liabilities settled during the period	(195)	(98)
Additional realized gains recognized	153	2,342
Total net (losses) gains reported in earnings	$ (42)	$ 3,155