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Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract] |
Summary of Unaudited Quarterly Results of Operations | The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2013 and 2012 (in thousands, except per share amounts).
|  | 2013 |
|  | March 31, |  |  | June 30, |  |  | September 30, |  |  | December 31, |
Revenue |  | $ | 201,189 |  |  | $ | 172,229 |  |  | $ | 168,779 |  |  | $ | 149,836 |
Operating expenses |  |  | 159,389 |  |  |  | 151,091 |  |  |  | 150,258 |  |  |  | 147,992 |
Gross margin |  |  | 41,800 |  |  |  | 21,138 |  |  |  | 18,521 |  |  |  | 1,844 |
Corporate general and administrative |  |  | 9,984 |  |  |  | 7,649 |  |  |  | 8,944 |  |  |  | 7,821 |
Operating income (loss) |  |  | 31,816 |  |  |  | 13,489 |  |  |  | 9,577 |  |  |  | (5,977 | )
Other income (expense): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  | (4,056 | ) |  |  | (4,145 | ) |  |  | (3,815 | ) |  |  | (3,358 | )
Gain on sale of operations, net |  |  | 18 |  |  |  | 48 |  |  |  | 6 |  |  |  | 7 |
Other income, net |  |  | 1,728 |  |  |  | 515 |  |  |  | 2,371 |  |  |  | 3,203 |
Total other expense, net |  |  | (2,310 | ) |  |  | (3,582 | ) |  |  | (1,438 | ) |  |  | (148 | )
Income (loss) from continuing operations before income tax expense (benefit) |  |  | 29,506 |  |  |  | 9,907 |  |  |  | 8,139 |  |  |  | (6,125 | )
Income tax expense (benefit) |  |  | 12,385 |  |  |  | 4,287 |  |  |  | 2,663 |  |  |  | (2,897 | )
Income (loss) from continuing operations |  |  | 17,121 |  |  |  | 5,620 |  |  |  | 5,476 |  |  |  | (3,228 | )
Income (loss) from operations of discontinued operations, net of tax |  |  | 1,159 |  |  |  | 1,622 |  |  |  | 569 |  |  |  | (812 | )
Gain on disposal of discontinued operations, net of tax |  |  | 23 |  |  |  | 1,905 |  |  |  | 56,315 |  |  |  | 93 |
Net income (loss) |  | $ | 18,303 |  |  | $ | 9,147 |  |  | $ | 62,360 |  |  | $ | (3,947 | )
Earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.35 |  |  | $ | 0.11 |  |  | $ | 0.11 |  |  | $ | (0.07 | )
Discontinued operations |  |  | 0.02 |  |  |  | 0.07 |  |  |  | 1.17 |  |  |  | (0.01 | )
Net income |  | $ | 0.37 |  |  | $ | 0.18 |  |  | $ | 1.28 |  |  | $ | (0.08 | )
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.34 |  |  | $ | 0.11 |  |  | $ | 0.11 |  |  | $ | (0.07 | )
Discontinued operations |  |  | 0.02 |  |  |  | 0.07 |  |  |  | 1.16 |  |  |  | (0.01 | )
Net income |  | $ | 0.37 |  |  | $ | 0.18 |  |  | $ | 1.27 |  |  | $ | (0.08 | )
Basic weighted average common shares |  |  | 49,417 |  |  |  | 49,639 |  |  |  | 48,504 |  |  |  | 46,981 |
Diluted weighted average common shares |  |  | 49,836 |  |  |  | 49,929 |  |  |  | 49,003 |  |  |  | 46,981 |
|  | 2012 |
|  | March 31, |  |  | June 30, |  |  | September 30, |  |  | December 31, |
Revenue |  | $ | 187,325 |  |  | $ | 153,936 |  |  | $ | 149,312 |  |  | $ | 135,965 |
Operating expenses |  |  | 149,172 |  |  |  | 135,564 |  |  |  | 136,773 |  |  |  | 133,977 |
Gross margin |  |  | 38,153 |  |  |  | 18,372 |  |  |  | 12,539 |  |  |  | 1,988 |
Corporate general and administrative |  |  | 10,545 |  |  |  | 7,575 |  |  |  | 7,475 |  |  |  | 4,615 |
Operating income (loss) |  |  | 27,608 |  |  |  | 10,797 |  |  |  | 5,064 |  |  |  | (2,627 | )
Other income (expense): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  | (3,791 | ) |  |  | (3,831 | ) |  |  | (3,576 | ) |  |  | (3,801 | )
Gain on sale of operations, net |  |  | 2,590 |  |  |  | 49 |  |  |  | 21 |  |  |  | 106 |
Other income (expense), net |  |  | 3,365 |  |  |  | (884 | ) |  |  | 2,542 |  |  |  | 3,191 |
Total other income (expense), net |  |  | 2,164 |  |  |  | (4,666 | ) |  |  | (1,013 | ) |  |  | (504 | )
Income (loss) from continuing operations before income tax expense (benefit) |  |  | 29,772 |  |  |  | 6,131 |  |  |  | 4,051 |  |  |  | (3,131 | )
Income tax expense (benefit) |  |  | 12,487 |  |  |  | 2,267 |  |  |  | 1,032 |  |  |  | (1,715 | )
Income (loss) from continuing operations |  |  | 17,285 |  |  |  | 3,864 |  |  |  | 3,019 |  |  |  | (1,416 | )
Income from operations of discontinued operations, net of tax |  |  | 1,478 |  |  |  | 1,966 |  |  |  | 2,256 |  |  |  | 2,604 |
Gain on disposal of discontinued operations, net of tax |  |  | 22 |  |  |  | 18 |  |  |  | 32 |  |  |  | 18 |
Net income |  | $ | 18,785 |  |  | $ | 5,848 |  |  | $ | 5,307 |  |  | $ | 1,206 |
Earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.35 |  |  | $ | 0.08 |  |  | $ | 0.06 |  |  | $ | (0.03 | )
Discontinued operations |  |  | 0.03 |  |  |  | 0.04 |  |  |  | 0.05 |  |  |  | 0.05 |
Net income |  | $ | 0.38 |  |  | $ | 0.12 |  |  | $ | 0.11 |  |  | $ | 0.02 |
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.35 |  |  | $ | 0.08 |  |  | $ | 0.06 |  |  | $ | (0.03 | )
Discontinued operations |  |  | 0.03 |  |  |  | 0.04 |  |  |  | 0.05 |  |  |  | 0.05 |
Net income |  | $ | 0.38 |  |  | $ | 0.12 |  |  | $ | 0.11 |  |  | $ | 0.02 |
Basic weighted average common shares |  |  | 49,103 |  |  |  | 49,041 |  |  |  | 48,895 |  |  |  | 48,967 |
Diluted weighted average common shares |  |  | 49,531 |  |  |  | 49,244 |  |  |  | 49,109 |  |  |  | 48,967 |

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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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