FAIR VALUE - Reconciliation Of Gains and Losses on Level 3 Assets - (Details) - Significant Unobservable Inputs (Level 3) - Recurring basis - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
State and municipal
Reconciliation and income statement classification of gains and losses
Balance at the beginning of the period	$ 10,858	$ 12,810
Included in other comprehensive income	(1)	(36)
Settlements	(737)	(1,916)
Balance at the end of the period	10,120	10,858
Other securities
Reconciliation and income statement classification of gains and losses
Balance at the beginning of the period	6,524	2,503
Included in other comprehensive income	74	21
Purchases		4,000
Balance at the end of the period	$ 6,598	$ 6,524