The total amount of contractually specified servicing fees, late fees, and ancillary fees earned for each period for which results of operations are presented.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

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Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.

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- Definition

The value of new servicing assets, subsequently measured at fair value, acquired or created during the current period through purchases or from transfers of financial assets.

+ References

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Fair value as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

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The increase (decrease) in the fair value of servicing assets that are subsequently measured at fair value.

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Mortgage Servicing Rights (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Mortgage servicing rights [Member]	Mar. 31, 2012 Mortgage servicing rights [Member]	Mar. 31, 2013 Loans [Member]	Dec. 31, 2012 Loans [Member]	Mar. 31, 2012 Loans [Member]	Dec. 31, 2011 Loans [Member]
Fair value of mortgage servicing rights
Balance at beginning of period			$ 4,552	$ 4,603	$ 680,447	$ 666,512	$ 615,867	$ 598,185
Additions			493	550
Change in fair value			(61)	(369)
Balance at end of period			4,984	4,784	680,447	666,512	615,867	598,185
Servicing, late and ancillary fees received	$ 417	$ 372
Weighted-average prepayment speed (CPR)	17.30%	18.40%
Discount rate	10.00%	9.00%