Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net unrealized gain (loss) on cashflow hedge	$ 459	$ (2,160)	$ (3,714)
Net unrealized gain (loss) on cashflow hedge, deferred taxes	170	(799)	(1,374)
Net unrealized gain (loss) on available for sale debt securities	(4,913)	(1,852)	7,037
Net unrealized gain (loss) on available for sale debt securities, deferred taxes	(1,818)	(685)	2,604
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	1,127	1,444	213
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	$ 417	$ 534	$ 79