2.2.0.7 false Stock-Based Compensation 0203 - Disclosure - Stock-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 Stock-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 Stock-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>3. Stock-Based Compensation</b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     The Company recorded approximately $2.3 million and $5.1 million of stock-based compensation expense for the three and six months ended June 30, 2010, respectively. For the three and six months ended June 30, 2009, the Company recorded approximately $5.4 million and $10.9 million of stock-based compensation expense, respectively As of June 30, 2010, there was approximately $10.1 million of total unrecognized compensation costs related to non-vested share-based employee compensation arrangements granted under the Company’s equity compensation plans. This cost is expected to be recognized over a weighted average period of 1.24 years. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     During the six months ended June 30, 2010, the Company issued a total of 594,743 shares of its common stock upon the exercise of stock options, pursuant to restricted stock grants and pursuant to purchases under its employee stock purchase plan (the ESPP). During the six months ended June 30, 2009, the Company issued a total of 496,731 shares of its common stock upon the exercise of stock options, pursuant to restricted stock grants and pursuant to purchases under the ESPP. Cash received from exercise of stock options and purchases through the ESPP during the six months ended June 30, 2010 and 2009 was approximately $2.5 million and $0.9 million, respectively, and is included within the financing activities section of the consolidated statements of cash flows. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     At June 30, 2010, there were a total of 6,185,711 shares of common stock reserved for future issuance under the ESPP and for future grants under the Company’s amended and restated 2004 stock incentive plan. </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