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Acquisitions (Schedule of Net Liabilities Acquired) (Details) (South Valley Bank [Member], USD $) In Thousands, unless otherwise specified	Oct. 31, 2012
South Valley Bank [Member]
Assets:
Cash and cash equivalents	$ 212,711
Available for sale securities	43,198
FHLB stock	5,211
Loans receivable, net	361,200
Covered loans receivable, net	107,946
FDIC indemnification asset	16,619
Property and equipment, net	24,259
Core deposit intangible	1,433
Real estate held for sale	7,400
Covered real estate held for sale	5,224
Goodwill	8,624
Other assets	26,079
Total Assets	819,904
Liabilities:
Customer accounts	737,395
FHLB advances	22,471
Other liabilities	16,143
Total Liabilities	776,009
Net assets acquired	43,895
Consideration provided:
Equity Issued	33,492
Cash paid	10,403
Total considerartion	$ 43,895

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