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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data (Unaudited) | Note 20. Quarterly Financial Data (Unaudited) The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2016 and 2015 (in thousands, except per share amounts).
|  | 2016 |
|  | March 31, |  |  | June 30, |  |  | September 30, |  |  | December 31, |
Revenue |  | $ | 224,238 |  |  | $ | 197,015 |  |  | $ | 199,794 |  |  | $ | 178,785 |
Operating expenses |  |  | 178,117 |  |  |  | 173,996 |  |  |  | 174,069 |  |  |  | 171,544 |
Gross margin |  |  | 46,121 |  |  |  | 23,019 |  |  |  | 25,725 |  |  |  | 7,241 |
Corporate general and administrative expenses |  |  | 10,245 |  |  |  | 8,346 |  |  |  | 8,679 |  |  |  | 9,049 |
Operating income (loss) |  |  | 35,876 |  |  |  | 14,673 |  |  |  | 17,046 |  |  |  | (1,808 | )
Other income (expense): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  | (1,526 | ) |  |  | (1,733 | ) |  |  | (1,760 | ) |  |  | (1,574 | )
Gain on sale of operations, net |  |  | 101 |  |  |  | 50 |  |  |  | 329 |  |  |  | 375 |
Other income, net |  |  | 2,147 |  |  |  | 703 |  |  |  | 2,632 |  |  |  | 1,475 |
Total other income (expense), net |  |  | 722 |  |  |  | (980 | ) |  |  | 1,201 |  |  |  | 276 |
Income (loss) from continuing operations before income tax expense (benefit) |  |  | 36,598 |  |  |  | 13,693 |  |  |  | 18,247 |  |  |  | (1,532 | )
Income tax expense (benefit) |  |  | 14,800 |  |  |  | 5,306 |  |  |  | 7,260 |  |  |  | (967 | )
Income (loss) from continuing operations |  |  | 21,798 |  |  |  | 8,387 |  |  |  | 10,987 |  |  |  | (565 | )
Loss from operations of discontinued operations, net of tax |  |  | (30 | ) |  |  | (258 | ) |  |  | (133 | ) |  |  | (121 | )
Net income (loss) |  | $ | 21,768 |  |  | $ | 8,129 |  |  | $ | 10,854 |  |  | $ | (686 | )
Earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.42 |  |  | $ | 0.16 |  |  | $ | 0.21 |  |  | $ | (0.01 | )
Discontinued operations |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net income (loss) |  | $ | 0.42 |  |  | $ | 0.16 |  |  | $ | 0.21 |  |  | $ | (0.01 | )
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.41 |  |  | $ | 0.16 |  |  | $ | 0.20 |  |  | $ | (0.01 | )
Discontinued operations |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net income (loss) |  | $ | 0.41 |  |  | $ | 0.16 |  |  | $ | 0.20 |  |  | $ | (0.01 | )
Basic weighted average common shares |  |  | 51,572 |  |  |  | 52,031 |  |  |  | 52,648 |  |  |  | 53,019 |
Diluted weighted average common shares |  |  | 52,745 |  |  |  | 53,079 |  |  |  | 53,846 |  |  |  | 53,019 |
|  | 2015 |
|  | March 31, |  |  | June 30, |  |  | September 30, |  |  | December 31, |
Revenue |  | $ | 213,866 |  |  | $ | 185,042 |  |  | $ | 187,102 |  |  | $ | 164,412 |
Operating expenses (1) |  |  | 170,864 |  |  |  | 163,117 |  |  |  | 158,496 |  |  |  | 159,914 |
Gross margin |  |  | 43,002 |  |  |  | 21,925 |  |  |  | 28,606 |  |  |  | 4,498 |
Corporate general and administrative expenses (1) |  |  | 9,865 |  |  |  | 6,615 |  |  |  | 8,028 |  |  |  | 8,019 |
Operating income (loss) |  |  | 33,137 |  |  |  | 15,310 |  |  |  | 20,578 |  |  |  | (3,521 | )
Other (expense) income: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  | (2,977 | ) |  |  | (2,848 | ) |  |  | (1,840 | ) |  |  | (1,237 | )
Gain (loss) on sale of operations, net |  |  | 56 |  |  |  | 45 |  |  |  | 5 |  |  |  | (22 | )
Other income (loss), net (1) |  |  | 2,859 |  |  |  | (1,126 | ) |  |  | (2,367 | ) |  |  | 1,780 |
Total other (expense) income, net |  |  | (62 | ) |  |  | (3,929 | ) |  |  | (4,202 | ) |  |  | 521 |
Income (loss) from continuing operations before income tax expense (benefit) |  |  | 33,075 |  |  |  | 11,381 |  |  |  | 16,376 |  |  |  | (3,000 | )
Income tax expense (benefit) |  |  | 13,572 |  |  |  | 4,696 |  |  |  | 6,787 |  |  |  | (2,226 | )
Income (loss) from continuing operations |  |  | 19,503 |  |  |  | 6,685 |  |  |  | 9,589 |  |  |  | (774 | )
Loss from operations of discontinued operations, net of tax |  |  | (335 | ) |  |  | (330 | ) |  |  | (561 | ) |  |  | (1,097 | )
Gain (loss) on disposal of discontinued operations, net of tax |  |  | — |  |  |  | 290 |  |  |  | 1,172 |  |  |  | (35 | )
Net income (loss) |  | $ | 19,168 |  |  | $ | 6,645 |  |  | $ | 10,200 |  |  | $ | (1,906 | )
Earnings (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.41 |  |  | $ | 0.14 |  |  | $ | 0.19 |  |  | $ | (0.02 | )
Discontinued operations |  |  | (0.01 | ) |  |  | (0.01 | ) |  |  | 0.01 |  |  |  | (0.01 | )
Net income (loss) |  | $ | 0.40 |  |  | $ | 0.13 |  |  | $ | 0.20 |  |  | $ | (0.03 | )
Diluted: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations |  | $ | 0.38 |  |  | $ | 0.13 |  |  | $ | 0.18 |  |  | $ | (0.02 | )
Discontinued operations |  |  | (0.01 | ) |  |  | — |  |  |  | 0.01 |  |  |  | (0.02 | )
Net income (loss) |  | $ | 0.37 |  |  | $ | 0.13 |  |  | $ | 0.19 |  |  | $ | (0.04 | )
Basic weighted average common shares |  |  | 48,146 |  |  |  | 49,464 |  |  |  | 51,736 |  |  |  | 51,669 |
Diluted weighted average common shares |  |  | 51,385 |  |  |  | 52,024 |  |  |  | 54,445 |  |  |  | 51,669 |
(1) | “Operating expenses” and “Corporate general and administrative expenses” include a reduction ($1.6 million and less than $0.1 million) related to a state payroll tax incentive associated with an office relocation. The reduction was recorded in “Other (expense) income, net” beginning in the third quarter of 2015, but was reclassified to “Operating expenses” and “Corporate general and administrative expenses” to align the incentives with the expenses associated with the office relocation. The reclassification had no impact on “Income from continuing operations” or diluted earnings per share from continuing operations.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: 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=68064558&loc=d3e765-108305 Reference 3: 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=68064558&loc=d3e725-108305 + Details
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