SHAREHOLDERS' EQUITY (Reconciliation of Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Effect of New Accounting Standards, Before Tax				$ (1,349)
Accumulated Other Comprehensive Income (Loss), Cumulative Effect of New Accounting Standards, Tax				355
Accumulated Other Comprehensive Income (Loss), Cumulative Effect of New Accounting Standards, Net of Tax				(994)
Net
Accumulated other comprehensive income (loss), beginning-of-period			$ (3,750)
Accumulated other comprehensive income (loss), end-of-period	$ 9,260		9,260
AOCI Attributable to Parent
Before Tax
Accumulated other comprehensive income (loss), beginning-of-period	4,204	$ (5,210)	(5,023)	2,287
Other comprehensive income (loss) before reclassification	6,530	(1,748)	18,058	(8,948)
Reclassification adjustment for realized losses (gains) included in net income	1,670	(208)	(631)	844
Comprehensive income (loss)	8,200	(1,956)	17,427	(8,104)
Accumulated other comprehensive income (loss), end-of-period	12,404	(7,166)	12,404	(7,166)
Income Tax
Accumulated other comprehensive income (loss), beginning-of-period	(1,066)	1,349	1,273	(593)
Other comprehensive income (loss) before reclassification	(1,655)	443	(4,577)	2,268
Reclassification adjustment for realized losses (gains) included in net income	(423)	24	160	(214)
Other Comprehensive Income (Loss), Tax	(2,078)	467	(4,417)	2,054
Accumulated other comprehensive income (loss), end-of-period	(3,144)	1,816	(3,144)	1,816
Net
Accumulated other comprehensive income (loss), beginning-of-period	3,138	(3,861)	(3,750)	1,694
Other comprehensive income (loss) before reclassification	4,875	(1,305)	13,481	(6,680)
Reclassification adjustment for realized losses (gains) included in net income	1,247	(184)	(471)	630
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	6,122	(1,489)	13,010	(6,050)
Accumulated other comprehensive income (loss), end-of-period	$ 9,260	$ (5,350)	$ 9,260	$ (5,350)