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Quarterly Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract] |
Summary of Quarterly Financial Information |
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
Year ended December 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 111,551 |  |  | $ | 128,798 |  |  | $ | 147,971 |  |  | $ | 144,524 |
Cost of revenues |  |  | 103,240 |  |  |  | 105,072 |  |  |  | 117,785 |  |  |  | 120,223 |
Net (loss) income |  |  | (2,549 | ) |  |  | 5,886 |  |  |  | 8,994 |  |  |  | 5,561 |
Basic (loss) earnings per share |  |  | (.36 | ) |  |  | .83 |  |  |  | 1.26 |  |  |  | .78 |
Diluted (loss) earnings per share |  |  | (.36 | ) |  |  | .80 |  |  |  | 1.21 |  |  |  | .74 |
Common stock market prices: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
High |  | $ | 53.27 |  |  | $ | 62.82 |  |  | $ | 73.49 |  |  | $ | 98.00 |
Low |  |  | 38.15 |  |  |  | 48.50 |  |  |  | 48.08 |  |  |  | 66.33 |
Year ended December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 82,422 |  |  | $ | 95,500 |  |  | $ | 111,069 |  |  | $ | 113,661 |
Cost of revenues |  |  | 75,865 |  |  |  | 79,159 |  |  |  | 89,505 |  |  |  | 91,409 |
Net (loss) income |  |  | (2,213 | ) |  |  | 3,743 |  |  |  | 5,812 |  |  |  | 5,789 |
Basic (loss) earnings per share |  |  | (.22 | ) |  |  | .54 |  |  |  | .83 |  |  |  | .83 |
Diluted (loss) earnings per share |  |  | (.22 | ) |  |  | .53 |  |  |  | .81 |  |  |  | .80 |
Common stock market prices: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
High |  | $ | 21.10 |  |  | $ | 21.45 |  |  | $ | 28.96 |  |  | $ | 39.49 |
Low |  |  | 15.68 |  |  |  | 18.88 |  |  |  | 19.99 |  |  |  | 26.19

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: 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 + Details
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