2.2.0.7 false Share Based Compensation 0204 - Disclosure - Share Based Compensation true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Share-Based Compensation [Abstract] 0 us-gaap_ShareBasedCompensationAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Share-Based Compensation 1 us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 12pt"><b>4. Share-Based Compensation</b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">We recognized $4.3 million and $4.5 million in share-based compensation expense for the three months ended June 30, 2010 and 2009, respectively, and approximately $1.7 million of related income tax benefit in each period. We recognized $7.8 million and $9.3 million in share-based compensation expense and approximately $3.0 million and $3.6 million of related income tax benefit for the six months ended June 30, 2010 and 2009, respectively. The fair value of our stock options was estimated using the Black-Scholes option pricing model. The impact of share-based compensation expense, net of tax, on our earnings per share was approximately $0.05 per share for each of the three month periods ended June 30, 2010 and 2009. The impact of share-based compensation expense, net of tax, on our earnings per share was approximately $0.08 and $0.10 per share for the six months ended June 30, 2010 and 2009, respectively. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">Based on our stock option and restricted stock grants outstanding at June 30, 2010, we estimate remaining unrecognized share-based compensation expense to be approximately $44.8 million with a weighted average remaining life of 2.7 years. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">Employees and non-employee members of our Board of Directors exercised 130,320 stock options during the six months ended June 30, 2010. Also during 2010, 189,799 shares of restricted stock vested and 22,399 of those shares were surrendered by our employees and cancelled in satisfaction of the employees’ related tax liabilities. The total intrinsic value, which represents the difference between the underlying stock’s market price and the share-based award’s exercise price, of options exercised and restricted stock vested during the six months ended June 30, 2010 and 2009 was approximately $5.5 million and $3.9 million, respectively. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">We granted 842,750 stock options to employees during the six months ended June 30, 2010. These options vest over four years in annual increments of 25% on each anniversary of the grant date and each had a grant-date fair value of $7.92. </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif"> <div align="center" style="font-size: 10pt; margin-top: 0pt"> <b> </b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">We granted 915,200 shares of restricted stock to employees and non-employee members of our Board of Directors during the six months ended June 30, 2010. These shares of restricted stock vest over four years in annual increments of 25% on each anniversary of the grant date and had a weighted-average grant-date fair value of $21.24 per share. </div> </div>  <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock Disclosure of compensation-related costs for share-based compensation which may include disclosure of policies, compensation plan details, allocation of stock compensation, incentive distributions, share-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65, A240 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-6 -Paragraph 53 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 false 1 2 false UnKnown UnKnown UnKnown false true