CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net change in unrealized gains on available-for-sale securities, tax effect	$ (1,821)	$ 2,138	$ (6,004)	$ (74)
Net change in unrealized loss on cash flow hedging derivatives, tax effect	1	0	1	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	(218)	(55)	(345)	(175)
Net reclassification adjustment for effective portion of cash flow hedges included in interest expense, tax effect	705	(857)	1,966	(106)
Reclassification of amortization of prior service cost included in net periodic cost, tax effect	$ (21)	$ (20)	$ (42)	$ (41)