Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Details)

v3.4.0.3
Summary of Significant Accounting Policies - Additional Information (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
primary_source
Mar. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
Schedule Of Significant Accounting Policies [Line Items]      
Increase in gross profit $ 73,635 $ 62,908  
Property, equipment, and software, net $ 94,188   $ 82,198
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 $ 89,500   77,400
International Subsidiaries      
Schedule Of Significant Accounting Policies [Line Items]      
Property, equipment, and software, net $ 4,700   $ 4,800
Reclassification      
Schedule Of Significant Accounting Policies [Line Items]      
Increase in gross profit   $ 200