Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Additional Information (Detail)

v3.7.0.1
Segment Information - Additional Information (Detail) - Sales Revenue, Net - Customer
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Customer Concentration Risk | UNITED STATES        
Segment Reporting Information [Line Items]        
Concentration Risk Percentage 65.00% 65.00% 64.00% 62.00%
Customer Concentration Risk | International        
Segment Reporting Information [Line Items]        
Concentration Risk Percentage 35.00% 35.00% 36.00% 38.00%
Geographic Concentration Risk | International        
Segment Reporting Information [Line Items]        
Number of customers which represented more than 10% of the Company's revenue 0 0 0 0
Geographic Concentration Risk | International | Minimum        
Segment Reporting Information [Line Items]        
Concentration Risk Percentage 10.00% 10.00% 10.00% 10.00%