Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Narrative) (Details)

v2.4.0.6
Stock-Based Compensation (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Share-based Compensation [Abstract]      
Stock-based compensation expense $ 4,688 $ 1,287 $ 492
Capitalized stock-based compensation 1,875 515 197
Unrecognized compensation expense $ 6,745    
Weighted average period 1 year 6 months 18 days