Business Combinations - Schedule of Fair Value of Consideration Transferred, Identifiable Net Assets Acquired and Resulting Goodwill (Detail) - USD ($)
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Oct. 03, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Fair value of consideration transferred: |
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|
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| Cash consideration |
$ 6,823
|
|
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| Liabilities assumed: |
|
|
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| Goodwill recognized |
|
$ 63,462,000
|
$ 63,462,000
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| North Valley Bancorp [Member] |
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| Fair value of consideration transferred: |
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|
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| Fair value of shares issued |
151,303,000
|
|
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| Cash consideration |
7,000
|
|
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| Total fair value of consideration transferred |
151,310,000
|
|
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| Asset acquired: |
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| Cash and cash equivalents |
141,412,000
|
|
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| Securities available for sale |
17,288,000
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|
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| Securities held to maturity |
189,950,000
|
|
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| Restricted equity securities |
5,378,000
|
|
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| Loans |
499,327,000
|
|
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| Foreclosed assets |
695,000
|
|
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| Premises and equipment |
11,936,000
|
|
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| Cash value of life insurance |
38,075,000
|
|
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| Core deposit intangible |
6,614,000
|
|
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| Other assets |
20,064,000
|
|
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| Total assets acquired |
930,739,000
|
|
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| Liabilities assumed: |
|
|
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| Deposits |
801,956,000
|
|
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| Other liabilities |
10,429,000
|
|
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| Junior subordinated debt |
14,987,000
|
|
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| Total liabilities assumed |
827,372,000
|
|
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| Total net assets acquired |
103,367,000
|
|
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| Goodwill recognized |
$ 47,943,000
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