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, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Share-based Compensation [Abstract]        
Stock options issued 0 0 0 0
Stock-based compensation expense $ 1,600,000 $ 1,200,000 $ 4,600,000 $ 3,400,000
Capitalized stock-based compensation 646,000 463,000 1,848,000 1,371,000
Unrecognized compensation expense $ 10,000,000   $ 10,000,000  
Weighted average period     1 year 7 months 28 days