Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income (loss)	$ 46,143	$ 48,037	$ 30,784
Unrealized gain from securities:
Net unrealized holding gain from available for sale securities arising during the period, net of tax of $1,902, ($7,462) and ($1,047)	(2,609)	13,285	1,587
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $1,316, $48 and $20	(2,417)	(85)	(38)
Net unrealized gain from securities, net of reclassification adjustment	(5,026)	13,200	1,549
Cash flow hedging instruments:
Reclassification adjustment of net gain included in income, net of tax of $0, $79, and $625	0	(143)	(1,134)
Net change in cash flow hedging instruments	0	(143)	(1,134)
Pension plan liability adjustment:
Unrecognized net actuarial gain (loss) during the period, net of tax of $0, $154 and ($12)	0	(260)	23
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax of ($38), ($31) and ($15)	42	55	27
Pension plan liability adjustment, net	42	(205)	50
Other comprehensive income	(4,984)	12,852	465
Comprehensive income	$ 41,159	$ 60,889	$ 31,249