Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net income (loss)	$ 8,902	$ 5,779
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)	(1,645)	2,313
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $48, $20 and $383	(40)	0
Net unrealized gain from securities, net of reclassification adjustment	(1,685)	2,313
Cash flow hedging instruments:
Reclassification adjustment of net gain included in income, net of tax of $79, $625, and $913	0	(142)
Net change in cash flow hedging instruments	0	(142)
Pension plan liability adjustment:
Unrecognized net actuarial gain (loss) during the period, net of tax of $154, ($12) and $379	0	(261)
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax of ($31), ($15) and ($18)	13	14
Pension plan liability adjustment, net	13	(247)
Comprehensive income	$ 7,230	$ 7,703