Business acquisition net assets cost basis transferred to subsidiary.

No definition available.

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- Details

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- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 30

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e961-128460

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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Business Combinations - Summary of Estimated Fair Value Adjustments Resulting In Goodwill (Detail) (USD $)	0 Months Ended
	Oct. 03, 2014	Mar. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Cash payments to North Valley Bancorp Shareholders	$ 6,823
Goodwill		63,462,000us-gaap_Goodwill	63,462,000us-gaap_Goodwill
North Valley Bancorp [Member]
Business Acquisition [Line Items]
Value of stock consideration paid to North Valley Bancorp Shareholders	151,303,000
Cash payments to North Valley Bancorp Shareholders	7,000
Cost basis net assets acquired	(98,040,000)
Goodwill	47,943,000
North Valley Bancorp [Member] \| Deferred income taxes [Member]
Business Acquisition [Line Items]
Fair Value Adjustments	6,293,000
North Valley Bancorp [Member] \| Loans [Member]
Business Acquisition [Line Items]
Fair Value Adjustments	5,832,000
North Valley Bancorp [Member] \| Premises and equipment [Member]
Business Acquisition [Line Items]
Fair Value Adjustments	(4,785,000)
North Valley Bancorp [Member] \| Core deposit intangibles [Member]
Business Acquisition [Line Items]
Fair Value Adjustments	(6,283,000)
North Valley Bancorp [Member] \| Junior subordinated debt [Member]
Business Acquisition [Line Items]
Fair Value Adjustments	(6,664,000)
North Valley Bancorp [Member] \| Other [Member]
Business Acquisition [Line Items]
Fair Value Adjustments	$ 280,000