v2.4.0.8

Business Combinations narrative (Details) (USD $) | 7 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended |  | 0 Months Ended |  | 0 Months Ended |  |  |
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Dec. 31, 2011 | Dec. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Apr. 02, 2013 West Coast Bancorp [Member] | Dec. 31, 2013 West Coast Bancorp [Member] | Dec. 31, 2012 West Coast Bancorp [Member] | Aug. 05, 2011 Bank of Whitman [Member] location | Dec. 31, 2012 Bank of Whitman [Member] location | May 27, 2011 First Heritage Bank [Member] location | Dec. 31, 2012 First Heritage Bank [Member] | May 20, 2011 Summit Bank [Member] | Dec. 31, 2012 Summit Bank [Member] | May 27, 2011 Scenario, Previously Reported [Member] First Heritage Bank [Member] | May 20, 2011 Scenario, Previously Reported [Member] Summit Bank [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Purchase Price Allocation, Goodwill Amount |  |  |  |  |  | $ 228,398,000 |  |  |  |  | $ 4,023,000 |  | $ 1,892,000 |  |  |
Business Acquisition, Purchase Price Allocation, Loans Covered By Loss Sharing |  |  |  |  |  |  |  |  |  |  | 8,225,000 |  | 2,162,000 |  | 8,300,000 | 2,700,000
Business Acquisition, Effective Date of Acquisition |  |  |  |  |  | Apr. 01, 2013 |  |  | Aug. 05, 2011 |  | May 27, 2011 |  | May 20, 2011 |  |  |
Business Combination, Acquired Receivables, Fair Value |  |  |  |  |  | 1,407,798,000 |  |  | 200,041,000 |  | 81,488,000 |  | 69,783,000 |  | 81,900,000 | 71,400,000
Number Of Branch Locations To Be Acquired |  |  |  |  |  |  |  |  | 9 |  | 5 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  |  |  |  |  | 312,393,000 |  |  | 1,830,000 |  |  |  |  |  |  |
Gain on bank acquisitions, net of tax |  |  | 0 | 0 | 1,830,000 |  |  |  | 1,800,000 |  |  |  |  |  |  |
Business Combination, Purchase Price Allocation, Amortizable Intangible Assets |  |  |  |  |  | 15,257,000 |  |  | 3,943,000 |  | 1,337,000 |  | 509,000 |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  | 25,500,000 | 1,800,000 |  |  |  |  |  |  |  |
Number Of Branch Locations Excluded From Operating Results |  |  |  |  |  |  |  |  |  | 11 |  |  |  |  |  |
Percentage of loss shared by FDIC |  |  |  |  |  |  |  |  |  |  |  | 80.00% |  | 80.00% |  |
FDIC Percentage Of Loss Recoveries |  |  |  |  |  |  |  |  |  |  |  | 80.00% |  | 80.00% |  |
Business Acquisition, Purchase Price Allocation, FDIC Indemnification Asset |  |  |  |  |  |  |  |  |  |  | 38,531,000 |  | 30,203,000 |  | 38,100,000 | 27,200,000
Business Combination, Purchase Price Allocation, Other Assets |  |  |  |  |  | 75,820,000 |  |  | 2,447,000 |  | 3,657,000 |  | 1,813,000 |  | 1,700,000 | 786,000
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Acquired Loans | (369,000) | (1,700,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Loans Covered By Loss Sharing | (61,000) | (509,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, FDIC Indemnification Asset | 427,000 | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Assets | 1,900,000 | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Purchase Price Allocation, Liabilities, Deposits |  |  |  |  |  | 1,883,407,000 |  |  | 401,127,000 |  | 159,525,000 |  | 123,279,000 |  |  |
Business Acquisition, Purchase Price Allocation, Federal Home Loan Bank Advances |  |  |  |  |  | $ 128,885,000 |  |  | $ 32,949,000 |  | $ 5,003,000 |  | $ 7,772,000 |  |  |

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