CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements of Comprehensive Income [Abstract]
Tax expense (benefit) related to reclassification adjustment for losses included in net income	$ 22,000	$ 117,000	$ 169,000	$ 142,000
Tax expense (benefit) related to unrealized holding (losses) gains arising during period	(3,686,000)	3,625,000	(1,649,000)	7,024,000
Tax expense (benefit) related to (gains) losses on AFS securities	(142,000)	(9,000)	(209,000)	(19,000)
Tax expense (benefit) related to (gains) losses for AFS securities transferred to HTM	$ (112,000)	$ 0	$ (112,000)	$ 0