Amount of increase (decrease) in intangible assets.

No definition available.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

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- Definition

Bank deposits belonging to an acquired bank that can be counted on as a stable source of lending funds. These deposits have the following attributes: predictable costs and low sensitivity to interest rates. This intangible asset is usually amortized over its estimated useful life.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ 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 (a)

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- Definition

Amount of increase (decrease) 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

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-Publisher FASB

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- Definition

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

+ References

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

-Publisher FASB

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-Topic 350

-SubTopic 30

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-Paragraph 3

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-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275

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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Feb. 01, 2015
Goodwill [Line Items]
Goodwill acquired during the period	$ 57,059,000us-gaap_GoodwillAcquiredDuringPeriod
Amortization expense of other intangible assets	3,081,000us-gaap_AmortizationOfIntangibleAssets	1,837,000us-gaap_AmortizationOfIntangibleAssets
Impairment charges	0	0
Core Deposits and Other Intangible Assets [Member] \| Minimum [Member]
Goodwill [Line Items]
Estimated useful lives of core deposits and customer relationships	5 years
Core Deposits and Other Intangible Assets [Member] \| Maximum [Member]
Goodwill [Line Items]
Estimated useful lives of core deposits and customer relationships	15 years
Banking [Member]
Goodwill [Line Items]
Goodwill acquired during the period	55,969,000
Amortization expense of other intangible assets	2,605,000	1,430,000
Insurance [Member]
Goodwill [Line Items]
Goodwill acquired during the period	1,090,000
Amortization expense of other intangible assets	476,000	407,000
LSB Financial Corp. [Member] \| Banking [Member]
Goodwill [Line Items]
Increase (decrease) to goodwill	(300,000)
Founders Financial Corporation [Member] \| Banking [Member]
Goodwill [Line Items]
Goodwill acquired during the period	56,200,000
Core deposit intangibles	5,500,000
Mutual Underwriters [Member] \| Customer Business Relationships [Member]
Goodwill [Line Items]
Estimated useful lives of core deposits and customer relationships	10 years
Mutual Underwriters [Member] \| Insurance [Member]
Goodwill [Line Items]
Goodwill acquired during the period			1,100,000
Increase (decrease) to goodwill	1,100,000
Mutual Underwriters [Member] \| Insurance [Member] \| Customer Business Relationships [Member]
Goodwill [Line Items]
Increase (decrease) in customer business relationship	$ 2,600,000