ACQUISITIONS - Narrative (Details)
$ in Thousands |
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|
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|
3 Months Ended |
12 Months Ended |
|
Jan. 31, 2016
USD ($)
branch
|
Dec. 31, 2015
USD ($)
branch
shares
|
Jul. 15, 2015
USD ($)
|
Jan. 01, 2015
USD ($)
branch
shares
|
Mar. 31, 2016
branch
|
Dec. 31, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
branch
|
Dec. 31, 2014
USD ($)
|
| Business Acquisition [Line Items] |
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| Number of branches consolidated during the period | branch |
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7
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| Goodwill, acquired during period |
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|
|
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|
$ 0
|
$ 28,245
|
|
| Paydowns of long-term borrowings |
|
|
|
|
|
0
|
45,500
|
$ 10,000
|
| Redemption of preferred stock |
|
|
|
|
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|
11,550
|
|
| Preferred Stock |
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| Business Acquisition [Line Items] |
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| Redemption of preferred stock |
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|
11,550
|
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| F&M Bancshares. Inc. |
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| Business Acquisition [Line Items] |
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| Cash consideration |
|
$ 642
|
|
$ 642
|
|
|
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| Goodwill, acquired during period |
|
|
|
$ 28,200
|
|
|
|
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| Interest income |
|
|
|
|
|
17,100
|
|
|
| Paydowns of long-term borrowings |
|
|
|
|
|
18,000
|
|
|
| Acquisition related costs |
|
|
|
|
|
$ 941
|
$ 245
|
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| F&M Bancshares. Inc. | Preferred Stock |
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|
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| Business Acquisition [Line Items] |
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|
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| Redemption of preferred stock |
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|
$ 11,700
|
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|
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| F&M Bancshares. Inc. | Common Stock |
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| Business Acquisition [Line Items] |
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| Consideration paid, shares issued (in shares) | shares |
|
2,338,520
|
|
2,338,520
|
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|
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| Houston, Texas | F&M Bancshares. Inc. |
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| Business Acquisition [Line Items] |
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| Number of branches consolidated during the period | branch |
|
|
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2
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| Central Texas |
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| Business Acquisition [Line Items] |
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| Number of branches at which loans are held for sale | branch |
|
2
|
|
|
|
|
2
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| Central Texas | Disposed of by Sale |
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| Business Acquisition [Line Items] |
|
|
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|
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| Number of branches | branch |
2
|
|
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|
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| Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |
$ 2,100
|
|
|
|
|
|
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| Gain (Loss) on Disposition of Business |
$ 1,300
|
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| Enterprise |
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| Business Acquisition [Line Items] |
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| Number of branches | branch |
|
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9
|
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| Enterprise | Houston, Texas |
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| Business Acquisition [Line Items] |
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|
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| Number of branches | branch |
|
|
|
7
|
|
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| Enterprise | Central Texas |
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| Business Acquisition [Line Items] |
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| Number of branches | branch |
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2
|
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