SHAREHOLDERS' EQUITY (Reconciliation of Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2017	Dec. 31, 2017
Net
Accumulated other comprehensive income (loss), beginning-of-period			$ (3,750)
Accumulated other comprehensive income (loss), end-of-period	$ 11,648		11,648
Accumulated other comprehensive income (loss)	11,648		11,648
AOCI Attributable to Parent
Before Tax
Accumulated other comprehensive income (loss), beginning-of-period	12,404	$ (7,166)	(5,023)
Cumulative effect of new accounting standards, Before Tax			0	$ (1,349)
Other comprehensive income (loss) before reclassification	3,921	(575)	21,979	(10,573)
Reclassification adjustment for realized losses (gains) included in net income	(893)	(162)	(1,524)	1,732
Comprehensive income (loss)	3,028	(737)	20,455	(8,841)
Accumulated other comprehensive income (loss), end-of-period	15,432	(7,903)	15,432
Income Tax
Accumulated other comprehensive income (loss), beginning-of-period	(3,144)	1,816	1,273
Cumulative effect of new accounting standards, Tax			0	355
Other comprehensive income (loss) before reclassification	(854)	145	(5,431)	2,679
Reclassification adjustment for realized losses (gains) included in net income	214	41	374	(439)
Other Comprehensive Income (Loss), Tax	(640)	186	(5,057)	2,240
Accumulated other comprehensive income (loss), end-of-period	(3,784)	2,002	(3,784)
Net
Accumulated other comprehensive income (loss), beginning-of-period	9,260	(5,350)	(3,750)
Cumulative effect of new accounting standards, Net			0	(994)
Other comprehensive income (loss) before reclassification	3,067	(430)	16,548	(7,894)
Reclassification adjustment for realized losses (gains) included in net income, Net	(679)	(121)	(1,150)	1,293
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	2,388	(551)	15,398	$ (6,601)
Accumulated other comprehensive income (loss), end-of-period	11,648	(5,901)	11,648
AOCI Including Portion Attributable to Noncontrolling Interest, before Tax	12,404	(7,166)	15,432		$ 2,287
AOCI Including Portion Attributable to Noncontrolling Interest, Tax	3,144	(1,816)	3,784		593
Accumulated other comprehensive income (loss)	$ 9,260	$ (5,350)	$ 11,648		$ 1,694