Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Securities transactions accumulated other comprehensive income reclassifications	$ (85)	$ 0	$ 15	$ 3,912
Unrealized (losses) gains on securities, tax	423	(91)	(296)	(507)
Reclassification adjustment for losses (gains) included in net income, tax	(33)	0	6	1,513
Other comprehensive (losses) gains, tax	$ 390	$ (91)	$ (290)	$ 1,006