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SELECTED QUARTERLY FINANCIAL DATA (unaudited) | 12 Months Ended
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Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract] |
SELECTED QUARTERLY FINANCIAL DATA (unaudited) | SELECTED QUARTERLY FINANCIAL DATA (unaudited) The following table contains quarterly financial information for fiscal years 2016 and 2015. The operating results for any quarter are not necessarily indicative of future period results.
| First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
Fiscal Year 2016 | (in thousands, except per share amounts)
Total revenue | $ | 354,868 |  |  | $ | 434,055 |  |  | $ | 425,720 |  |  | $ | 466,789 |
Gross profit(1) | 140,768 |  |  | 169,747 |  |  | 156,270 |  |  | 179,881 |
Operating income | 51,472 |  |  | 58,061 |  |  | 58,795 |  |  | 69,091 |
Net income attributable to common shareholders | 37,143 |  |  | 35,207 |  |  | 37,735 |  |  | 44,680 |
Earnings (loss) per common share |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |
Continuing operations attributable to common shareholders | $ | 0.80 |  |  | $ | 0.75 |  |  | $ | 0.79 |  |  | $ | 0.95 |
Discontinued operations | $ | — |  |  | $ | — |  |  | $ | 0.01 |  |  | $ | — |
Net income attributable to common shareholders | $ | 0.80 |  |  | $ | 0.75 |  |  | $ | 0.80 |  |  | $ | 0.95 |
Diluted: |  |  |  |  |  |  |
Continuing operations attributable to common shareholders | $ | 0.78 |  |  | $ | 0.73 |  |  | $ | 0.78 |  |  | $ | 0.93 |
Discontinued operations | $ | — |  |  | $ | — |  |  | $ | 0.01 |  |  | $ | — |
Net income attributable to common shareholders | $ | 0.78 |  |  | $ | 0.73 |  |  | $ | 0.79 |  |  | $ | 0.93 |
Fiscal Year 2015 |  |  |  |  |  |  |
Total revenue | $ | 320,414 |  |  | $ | 339,573 |  |  | $ | 349,465 |  |  | $ | 353,850 |
Gross profit(1) | 119,660 |  |  | 132,783 |  |  | 138,075 |  |  | 140,574 |
Operating income | 43,005 |  |  | 55,735 |  |  | 55,440 |  |  | 52,269 |
Net income attributable to common shareholders | 31,541 |  |  | 48,509 |  |  | 37,379 |  |  | 31,884 |
Earnings (loss) per common share |  |  |  |  |  |  |
Basic: |  |  |  |  |  |  |
Continuing operations attributable to common shareholders | $ | 0.67 |  |  | $ | 1.04 |  |  | $ | 0.81 |  |  | $ | 0.71 |
Discontinued operations | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (0.02 | )
Net income attributable to common shareholders | $ | 0.67 |  |  | $ | 1.04 |  |  | $ | 0.81 |  |  | $ | 0.69 |
Diluted: |  |  |  |  |  |  |
Continuing operations attributable to common shareholders | $ | 0.66 |  |  | $ | 1.02 |  |  | $ | 0.79 |  |  | $ | 0.69 |
Discontinued operations | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (0.02 | )
Net income attributable to common shareholders | $ | 0.66 |  |  | $ | 1.02 |  |  | $ | 0.79 |  |  | $ | 0.67 |
(1) Gross profit is calculated as total revenues minus cost of revenue (excluding amortization of intangible assets).
Full-year amounts may not sum due to rounding.

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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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