Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended		15 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012
Net income as reported	$ 11,880	$ 32,681	$ 33,283	$ 18,872
Unrealized gain from securities:
Net unrealized holding gain from available for sale securities arising during the period, net of tax of ($1,432), ($2,808), ($1,345), and ($7,733)	2,631	3,355	13,768	4,988
Reclassification adjustment of net gain from sale of available for sale securities included in income, net of tax of $0, $0, $23, and $0	0	(39)	0	0
Net unrealized gain from securities, net of reclassification adjustment	2,631	3,316	13,768	4,988
Cash flow hedging instruments:
Reclassification adjustment of net gain included in income, net of tax of $0, $0, $0, and $79		0	(143)
Net change in cash flow hedging instruments		0	(143)
Pension plan liability adjustment:
Unrecognized net actuarial gain (loss) during the period, net of tax of $0, $0, $0, and $154	0	0	(260)	0
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax of ($7), ($8), ($31), and ($23)	13	29	41	14
Pension plan liability adjustment, net	13	29	(219)	14
Total comprehensive income	$ 14,524	$ 36,026	$ 46,689	$ 23,874