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Earnings Per Share | 9 Months Ended
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Sep. 30, 2012
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | NOTE 3 – EARNINGS PER SHARE Basic earnings per share is based on the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the effect of options that are dilutive and outstanding during the period. Per share amounts are computed as follows:
|  | Three Months Ended September 30 |  |  | Nine Months Ended September 30 |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Numerator (in millions): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income/(loss) available to common stockholders |  | $ | 15.5 |  |  | $ | (16.8 | ) |  | $ | 55.6 |  |  | $ | 29.3 |
Denominator (in thousands): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 23,240 |  |  |  | 23,711 |  |  |  | 23,148 |  |  |  | 23,698 |
Dilutive effect of stock options and awards |  |  | 683 |  |  |  | 0 |  |  |  | 724 |  |  |  | 918 |
Denominator for diluted earnings per share |  |  | 23,923 |  |  |  | 23,711 |  |  |  | 23,872 |  |  |  | 24,616 |
Net income/(loss) per share, basic |  | $ | 0.67 |  |  | $ | (0.71 | ) |  | $ | 2.40 |  |  | $ | 1.24 |
Net income/(loss) per share, diluted |  | $ | 0.65 |  |  | $ | (0.71 | ) |  | $ | 2.33 |  |  | $ | 1.19 |
In the three and nine months ended September 30, 2012, the average number of anti-dilutive options excluded from the calculation of diluted earnings per share were 1,380 and 1,380, respectively (2011 - 1,380 and 690, respectively).

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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 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: 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=16381557&loc=d3e4984-109258 Reference 3: 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 4: 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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: 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=6880815&loc=d3e20235-122688 + Details
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