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Earnings and Dividends per Share (Tables) | 6 Months Ended
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Jun. 30, 2016
Earnings Per Share [Abstract] |
Number of Shares Outstanding for Calculation of Earnings Per Share | The computational components of basic and diluted earnings per share for the three-month and six-month periods ended June 30, 2016 and 2015 are below.
|  | For the three-month period ended June 30, 2016 |
|  | Numerator (Income) |  |  | Denominator (Shares) |  |  | Per Share Amount |
Basic net income and income per share |  | $ | 4,050 |  |  |  | 33,946 |  |  | $ | 0.12 |
Effect of dilutive securities and notes: |  |  |  |  |  |  |  |  |  |  |  |
Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan |  |  | — |  |  |  | 216 |  |  |  | — |
Diluted earnings and earnings per share |  | $ | 4,050 |  |  |  | 34,162 |  |  | $ | 0.12 |
|  | For the three-month period ended June 30, 2015 |
|  | Numerator (Income) |  |  | Denominator (Shares) |  |  | Per Share Amount |
Basic net income and earnings per share |  | $ | 2,104 |  |  |  | 26,284 |  |  | $ | 0.08 |
Effect of dilutive securities and notes: |  |  |  |  |  |  |  |  |  |  |  |
Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan |  |  | — |  |  |  | 343 |  |  |  | — |
Diluted earnings and earnings per share |  | $ | 2,104 |  |  |  | 26,627 |  |  | $ | 0.08 |
|  | For the six-month period ended June 30, 2016 |
|  | Numerator (Income) |  |  | Denominator (Shares) |  |  | Per Share Amount |
Basic net income and earnings per share |  | $ | 7,150 |  |  |  | 33,937 |  |  | $ | 0.21 |
Effect of dilutive securities and notes: |  |  |  |  |  |  |  |  |  |  |  |
Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan |  |  | — |  |  |  | 202 |  |  |  | — |
Diluted earnings and earnings per share |  | $ | 7,150 |  |  |  | 34,139 |  |  | $ | 0.21 |
|  | For the six-month period ended June 30, 2015 |
|  | Numerator (Income) |  |  | Denominator (Shares) |  |  | Per Share Amount |
Basic net income and earnings per share |  | $ | 2,302 |  |  |  | 26,277 |  |  | $ | 0.09 |
Effect of dilutive securities and notes: |  |  |  |  |  |  |  |  |  |  |  |
Common stock equivalents arising from stock options, restricted stock awards, and employee stock purchase plan |  |  | — |  |  |  | 367 |  |  |  | — |
Diluted earnings and earnings per share |  | $ | 2,302 |  |  |  | 26,644 |  |  | $ | 0.09 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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