Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net income (loss)	$ 48,037	$ 30,784	$ (3,968)
Unrealized gain from securities:
Net unrealized holding gain from available for sale securities arising during the period, net of tax of ($7,462), ($1,047) and ($5,197)	13,285	1,587	9,435
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $48, $20 and $383	(85)	(38)	(695)
Net unrealized gain from securities, net of reclassification adjustment	13,200	1,549	8,740
Cash flow hedging instruments:
Reclassification adjustment of net gain included in income, net of tax of $79, $625, and $913	(143)	(1,134)	(1,657)
Net change in cash flow hedging instruments	(143)	(1,134)	(1,657)
Pension plan liability adjustment:
Unrecognized net actuarial gain (loss) during the period, net of tax of $154, ($12) and $379	(260)	23	(689)
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax of ($31), ($15) and ($18)	55	27	33
Pension plan liability adjustment, net	(205)	50	(656)
Other comprehensive income	12,852	465	6,427
Comprehensive income	$ 60,889	$ 31,249	$ 2,459