Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation (Details Textual)

v2.4.0.8
Equity-Based Compensation (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2013
Plan
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of equity-based incentive compensation plans 5      
Expiration period 10 years      
Vesting period 5 years     5 years
Excess tax benefits $ 0 $ 0 $ 0  
Unrecognized compensation cost 32,100,000      
Weighted-average expected period for recognition 2 years 9 months 19 days      
Expected volatility for options based on historical volatility 6 years      
Expected volatility for options based on a peer group 7 years      
Common stock shares reserved for issuance 21,399,502      
Intrinsic value of stock options exercised 59,500,000 2,400,000 800,000  
Weighted average grant date fair value of stock options granted $ 4.00 $ 2.44 $ 2.49  
Fair value of stock options vested 5,900,000 3,400,000 6,400,000  
Restricted common stock shares issued       30,000
2007 Equity Incentive Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expiration period 7 years     7 years
Continuing Operations [Member]
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Equity based compensation expense 11,000,000 5,100,000 7,000,000  
Discontinued Operations [Member]
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Equity based compensation expense   200,000    
Selling, General and Administrative Expenses [Member]
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Equity based compensation expense 7,300,000 3,100,000 3,000,000  
Research and Development Expense [Member]
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Equity based compensation expense 3,600,000 2,000,000 4,000,000  
Cost of Revenue [Member]
       
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Equity based compensation expense $ 100,000