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Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Earnings Per Share [Abstract] |  |  |  |
Distributed earnings allocated to common stock | $ 6,073 | $ 5,767 | $ 18,220 | $ 17,302
Undistributed Earnings, Diluted | 5,673 | 8,081 | 19,809 | 17,349
Net Income (Loss) Available to Common Stockholders, Diluted | $ 11,746 | $ 13,848 | $ 38,029 | $ 34,651
Average shares outstanding (in shares) | 15,363,000 | 15,608,000 | 15,509,000 | 15,545,000
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants | 62,000 | 62,000 | 62,000 | 60,000
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements | 20,000 | 120,000 | 23,000 | 108,000
Shares for diluted earnings per share (in shares) | 15,445,000 | 15,790,000 | 15,594,000 | 15,713,000
Basic earnings per share (in dollars per share) | $ 0.76 | $ 0.89 | $ 2.45 | $ 2.23
Diluted earnings per share (in dollars per share) | $ 0.76 | $ 0.88 | $ 2.44 | $ 2.21
Options to purchase shares of common stock, anti-dilutive (in shares) | 13,953 | 0 |  |
Common stock exercise price, lower limit (in dollars per share) | $ 44.43 |  |  |

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- Definition The total amount of dividends declared in the period for each class of stock and the contractual amount of dividends (or interest on participating income bonds) that must be paid for the period (for example, unpaid cumulative dividends). Dividends declared in the current period do not include dividends declared in respect of prior-period unpaid cumulative dividends. Preferred dividends that are cumulative only if earned are deducted only to the extent that they are earned. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -URI http://asc.fasb.org/extlink&oid=7655603&loc=SL5780133-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60A -URI http://asc.fasb.org/extlink&oid=7655603&loc=SL5780132-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e2740-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 66 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e2814-109256 + Details
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