Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Unrealized (losses) gains during the period, income tax benefit (expense)	$ 326	$ (461)	$ 301	$ (756)
Reclassification adjustment for losses (gains) realized in net income, income tax (benefit) expense	$ (39)	$ 13	$ 13	$ 38