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Selected Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Results of Operations | The following is a summary of the quarterly results of operations of the Company for the years ended December 31, 2014 and 2015.
|  | 2014
|  | First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
Revenue |  | $ | 593.1 |  |  | $ | 636.3 |  |  | $ | 640.3 |  |  | $ | 641.2 |
Operating income |  | 193.9 |  |  | 198.4 |  |  | 224.2 |  |  | 198.7 |
Income before income taxes |  | 208.2 |  |  | 239.1 |  |  | 253.4 |  |  | 312.8 |
Net income (controlling interest) |  | 77.2 |  |  | 99.1 |  |  | 103.2 |  |  | 172.6 |
Earnings per share (diluted) |  | 1.40 |  |  | 1.75 |  |  | 1.82 |  |  | 3.02 |
|  | 2015
|  | First Quarter |  | Second Quarter |  | Third Quarter |  | Fourth Quarter
Revenue |  | $ | 635.0 |  |  | $ | 646.6 |  |  | $ | 613.1 |  |  | $ | 589.8 |
Operating income |  | 231.4 |  |  | 195.2 |  |  | 215.2 |  |  | 193.2 |
Income before income taxes |  | 290.3 |  |  | 262.0 |  |  | 249.1 |  |  | 289.2 |
Net income (controlling interest) |  | 128.0 |  |  | 128.7 |  |  | 109.0 |  |  | 150.3 |
Earnings per share (diluted) |  | 2.27 |  |  | 2.31 |  |  | 1.98 |  |  | 2.72 |

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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=51825399&loc=d3e1280-108306 + Details
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