|
Acquisitions (Details) (USD $)
|
12 Months Ended |
0 Months Ended |
|
|
Dec. 31, 2014
|
Jan. 08, 2015
|
Dec. 31, 2013
|
| Business Acquisition |
|
|
|
| Consolidated assets |
$ 3,665,607,000 |
|
$ 3,539,575,000 |
| Total gross loans |
2,415,690,000 |
|
2,295,300,000 |
| Total deposits |
2,900,848,000 |
|
2,869,138,000 |
| Herget Financial and Herget Bank |
|
|
|
| Business Acquisition |
|
|
|
| Business acquisition expenses |
400,000 |
|
|
| Herget Financial and Herget Bank | Subsequent event |
|
|
|
| Business Acquisition |
|
|
|
| Percentage of outstanding common stock to be acquired |
|
100.00% |
|
| Aggregate cash consideration |
|
34,100,000 |
|
| Per share cash consideration entitled (in dollars per share) |
|
588.00 |
|
| Maximum period of measurement adjustments from the closing date of acquisition |
|
1 year |
|
| Herget Bank | Subsequent event |
|
|
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| Business Acquisition |
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|
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| Number of branches |
|
3 |
|
| Herget Financial and Herget Bank |
|
|
|
| Business Acquisition |
|
|
|
| Consolidated assets |
278,800,000 |
|
|
| Total investments |
113,000,000 |
|
|
| Total gross loans |
112,600,000 |
|
|
| Total deposits |
$ 246,400,000 |
|
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