Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v2.4.0.8
Stock-Based Compensation (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Share-based Compensation [Abstract]        
Stock-based compensation expense $ 3,500,000 $ 1,600,000 $ 11,200,000 $ 4,600,000
Capitalized stock-based compensation 1,400,000 600,000 4,499,000 1,848,000
Unrecognized compensation expense $ 21,100,000   $ 21,100,000  
Weighted average period     1 year 6 months 26 days