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Intangible Assets - Servicing Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Minimum	Dec. 31, 2013 Minimum	Sep. 30, 2014 Maximum	Dec. 31, 2013 Maximum	Sep. 30, 2014 Foster Bankshares Inc	Sep. 30, 2013 Foster Bankshares Inc	Sep. 30, 2014 Foster Bankshares Inc	Sep. 30, 2013 Foster Bankshares Inc	Sep. 30, 2014 Pacific International Bancorp, Inc.	Sep. 30, 2013 Pacific International Bancorp, Inc.	Sep. 30, 2014 Pacific International Bancorp, Inc.	Sep. 30, 2013 Pacific International Bancorp, Inc.
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of period	$ 9,024	$ 8,078	$ 8,915	$ 6,260
Additions through originations of servicing assets	1,270	977	2,943	2,535
Additions through acquisition of PIB									0	162	0	162	0	0	0	1,102
Amortization	(771)	(555)	(2,335)	(1,397)
Balance at end of period	$ 9,523	$ 8,662	$ 9,523	$ 8,662
Weighted-average discount rate					5.47%	5.49%	5.73%	5.73%
Constant prepayment rate					8.90%	9.20%	12.50%	13.00%

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- Definition

Servicing Asset at Amortized Cost, Additions by Business Acquisition

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Servicing Asset at Amortized Cost, Additions by Origination

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- Definition

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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Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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