FAIR VALUE - Reconciliation Of Gains and Losses on Level 3 Assets - (Details) - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
State and municipal | Recurring basis
Reconciliation and income statement classification of gains and losses
Balance at the beginning of the period	$ 10,430	$ 11,863	$ 10,858	$ 12,810
Included in other comprehensive income	6	(6)	8	(36)
Settlements	(182)	(510)	(612)	(1,427)
Balance at the end of the period	10,254	11,347	10,254	11,347
Other securities
Reconciliation and income statement classification of gains and losses
Balance at the beginning of the period		2,527
Included in other comprehensive income		(2)
Balance at the end of the period		2,525		2,525
Other securities | Recurring basis
Reconciliation and income statement classification of gains and losses
Balance at the beginning of the period	6,601		6,524	2,503
Included in other comprehensive income	(2)		75	22
Balance at the end of the period	$ 6,599	$ 2,525	$ 6,599	$ 2,525