Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.2.0.727
Summary of Significant Accounting Policies - Additional Information (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2015
USD ($)
primary_source
Dec. 31, 2014
USD ($)
Schedule Of Significant Accounting Policies [Line Items]    
Property, equipment and software, net $ 70,831 $ 72,616
Primary sources of revenue | primary_source 3  
Length of Expected Customer Benefit of License Fees Billed at Initial Order Date    
Schedule Of Significant Accounting Policies [Line Items]    
Expected length of time of benefit from license fees 3 years  
United States    
Schedule Of Significant Accounting Policies [Line Items]    
Property, equipment and software, net $ 65,600 66,500
International Subsidiaries    
Schedule Of Significant Accounting Policies [Line Items]    
Property, equipment and software, net $ 5,200 $ 6,100