Transition report pursuant to Rule 13a-10 or 15d-10

Summary of Significant Accounting Policies (Details)

v2.4.0.8
Summary of Significant Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified
 11 Months Ended 12 Months Ended
Dec. 31, 2013
Jan. 31, 2013
Jan. 31, 2012
Revenue Recognition      
Deferred revenue related to refund rights $ 14.2    
Concentration of Credit Risk      
Actual credit losses 0.4 0.5 0.4
Property and Equipment      
Capitalized cost, net of amortization, related to internal use software and website development costs 0.7    
Preferred Stock Warrant      
Loss on revaluation of the convertible preferred stock warrant liability     4.5
Stock-Based Compensation      
Service period over which company recognizes stock-based compensation 4 years    
Minimum
      
Property and Equipment      
Estimated useful lives of assets 3 years    
Maximum
      
Property and Equipment      
Estimated useful lives of assets 5 years    
Internal use software and website development
      
Property and Equipment      
Estimated useful lives of assets 3 years    
Capitalized cost, net of amortization, related to internal use software and website development costs $ 1.5 $ 1.1