CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net income	$ 10,521	$ 4,378	$ 20,901	$ 8,776
Unrealized gains and losses on securities available-for-sale:
Unrealized holding (losses) gains on available-for-sale securities	(2,811)	3,311	(1,304)	6,827
Tax effect	1,119	(1,276)	524	(2,466)
Net of tax amount	(1,692)	2,035	(780)	4,361
Reclassification adjustment for realized gains arising during this period	(221)	(574)	(726)	(1,989)
Tax effect	90	179	297	559
Net of tax amount	(131)	(395)	(429)	(1,430)
Amortization of unrealized holding losses on securities transferred from available-for-sale to held-to-maturity	63	54	128	99
Tax effect	(27)	(23)	(52)	(43)
Net of tax amount	36	31	76	56
Unrealized gains (losses) on cash flow hedges	236		(298)
Tax effect	(96)		122
Net of tax amount	140		(176)
Pension plan:
Actuarial gains	261		1,003	1,281
Tax effect	(107)		(410)	(523)
Net of tax amount	154		593	758
Total other comprehensive (loss) income	(1,493)	1,671	(716)	3,745
Total comprehensive income	$ 9,028	$ 6,049	$ 20,185	$ 12,521