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Unaudited Quarterly Financial Data | 12 Months Ended
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Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract] |
Unaudited Quarterly Financial Data | Note 19. Unaudited Quarterly Financial Data Summarized unaudited quarterly financial data is as follows:
| Quarters ended 2013
(Dollars in thousands, except per share data) | March 31 |  | June 30 |  | September 30 |  | December 31
Interest income | $ | 57,955 |  |  | 62,151 |  |  | 69,531 |  |  | 73,939 |
Interest expense | 7,458 |  |  | 7,185 |  |  | 7,186 |  |  | 6,929 |
Net interest income | 50,497 |  |  | 54,966 |  |  | 62,345 |  |  | 67,010 |
Provision for loan losses | 2,100 |  |  | 1,078 |  |  | 1,907 |  |  | 1,802 |
Net interest income after provision for loan losses | 48,397 |  |  | 53,888 |  |  | 60,438 |  |  | 65,208 |
Non-interest income | 22,950 |  |  | 23,222 |  |  | 23,873 |  |  | 23,002 |
Non-interest expense | 43,434 |  |  | 48,481 |  |  | 50,368 |  |  | 53,034 |
Income before income taxes | 27,913 |  |  | 28,629 |  |  | 33,943 |  |  | 35,176 |
Federal and state income tax expense | 7,145 |  |  | 5,927 |  |  | 8,315 |  |  | 8,630 |
Net income | 20,768 |  |  | 22,702 |  |  | 25,628 |  |  | 26,546 |
Basic earnings per share | 0.29 |  |  | 0.31 |  |  | 0.35 |  |  | 0.36 |
Diluted earnings per share | 0.29 |  |  | 0.31 |  |  | 0.35 |  |  | 0.36 |
| Quarters ended 2012
(Dollars in thousands, except per share data) | March 31 |  | June 30 |  | September 30 |  | December 31
Interest income | $ | 67,884 |  |  | 64,192 |  |  | 62,015 |  |  | 59,666 |
Interest expense | 9,598 |  |  | 9,044 |  |  | 8,907 |  |  | 8,165 |
Net interest income | 58,286 |  |  | 55,148 |  |  | 53,108 |  |  | 51,501 |
Provision for loan losses | 8,625 |  |  | 7,925 |  |  | 2,700 |  |  | 2,275 |
Net interest income after provision for loan losses | 49,661 |  |  | 47,223 |  |  | 50,408 |  |  | 49,226 |
Non-interest income | 20,338 |  |  | 21,791 |  |  | 23,974 |  |  | 25,393 |
Non-interest expense | 49,045 |  |  | 46,190 |  |  | 50,178 |  |  | 48,008 |
Income before income taxes | 20,954 |  |  | 22,824 |  |  | 24,204 |  |  | 26,611 |
Federal and state income tax expense | 4,621 |  |  | 3,843 |  |  | 4,760 |  |  | 5,853 |
Net income | 16,333 |  |  | 18,981 |  |  | 19,444 |  |  | 20,758 |
Basic earnings per share | 0.23 |  |  | 0.26 |  |  | 0.27 |  |  | 0.29 |
Diluted earnings per share | 0.23 |  |  | 0.26 |  |  | 0.27 |  |  | 0.29 |

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- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=25249566&loc=d3e1280-108306 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a + Details
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