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Summary of Significant Accounting Policies - Additional Information (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
Activity
Segment
Mar. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
Oct. 31, 2015
shares
Summary Of Significant Accounting Policies [Line Items]        
Number of business activities | Activity 1      
Number of operating segments | Segment 1      
Impairment of goodwill $ 0   $ 0  
Impairment of intangible assets 0   $ 0  
Impairment of long-lived assets 0 $ 0    
Convertible preferred stock, shares issued | shares       27,135,453
Interest or penalties charged in relation to unrecognized tax benefits $ 0      
Initial Public Offering | Common Stock        
Summary Of Significant Accounting Policies [Line Items]        
Convertible preferred stock, shares issued | shares       27,135,453