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EARNINGS PER SHARE | 12 Months Ended
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Dec. 31, 2012
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHARE The following table sets forth the computation of basic and diluted earnings per share:
| Year Ended December 31,
| 2012 |  | 2011 |  | 2010
Numerator: |  |  |  |  |
Net income | $ | 257,411 |  |  | $ | 217,186 |  |  | $ | 130,244 |
Denominator: |  |  |  |  |
Basic weighted average shares outstanding | 83,087 |  |  | 83,681 |  |  | 84,407 |
Effect of dilutive securities - Stock options and awards | 1,088 |  |  | 1,027 |  |  | 816 |
Diluted weighted average shares outstanding | 84,175 |  |  | 84,708 |  |  | 85,223 |
Basic earnings per share | $ | 3.10 |  |  | $ | 2.60 |  |  | $ | 1.54 |
Diluted earnings per share | $ | 3.06 |  |  | $ | 2.56 |  |  | $ | 1.53 |
For the years ended December 31, 2012, 2011 and 2010, common shares subject to equity-based awards of 107,814, 626,135 and 1,504,346, respectively, were excluded from the computation of diluted earnings per share because the effect of their exercise would be anti-dilutive.

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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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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