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Earnings Per Share | 6 Months Ended
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Jun. 30, 2016
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The calculation of basic earnings per share is based on the weighted average number of shares of the Company’s common stock outstanding during the period. Diluted earnings per share is similar to basic earnings per share, but adjusts for the dilutive effect of the potential issuance of incremental shares of the Company’s common stock. The following is a reconciliation of the numerator and denominator used in the calculation of basic and diluted earnings per share available to common stockholders.
| For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
| 2015 |  | 2016 |  | 2015 |  | 2016
Numerator |  |  |  |  |  |  |
Net income (controlling interest) | $ | 128.7 |  |  | $ | 107.4 |  |  | $ | 256.7 |  |  | $ | 212.0 |
Convertible securities interest expense, net | 3.8 |  |  | 3.9 |  |  | 7.6 |  |  | 7.7 |
Net income (controlling interest), as adjusted | $ | 132.5 |  |  | $ | 111.3 |  |  | $ | 264.3 |  |  | $ | 219.7 |
Denominator |  |  |  |  |  |  |
Average shares outstanding (basic) | 54.6 |  |  | 53.8 |  |  | 54.7 |  |  | 53.9 |
Effect of dilutive instruments: |  |  |  |  |  |  |
Stock options and restricted stock | 0.7 |  |  | 0.5 |  |  | 0.8 |  |  | 0.4 |
Junior convertible securities | 2.2 |  |  | 2.2 |  |  | 2.2 |  |  | 2.2 |
Average shares outstanding (diluted) | 57.5 |  |  | 56.5 |  |  | 57.7 |  |  | 56.5 |
For the three months ended March 31, 2016, the Company repurchased 0.2 million shares of common stock, at an average share price of $161.16, under a share repurchase program approved by the Company’s Board of Directors. Average shares outstanding (diluted) in the table above exclude the anti-dilutive effect of the following items:
| For the Three Months Ended June 30, |  | For the Six Months Ended June 30,
| 2015 |  | 2016 |  | 2015 |  | 2016
Stock options and restricted stock units | 0.1 |  |  | 0.2 |  |  | 0.1 |  |  | 0.3 |
Shares subject to forward sale agreement | — |  |  | 2.9 |  |  | — |  |  | 2.9 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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