SEGMENT AND GEOGRAPHIC DATA - Long-lived Assets by Geographic Region (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total Long-Lived Assets	$ 111,391	$ 110,143
Reportable Geographical Components | United States
Segment Reporting Information [Line Items]
Total Long-Lived Assets	89,551	87,440
Reportable Geographical Components | International
Segment Reporting Information [Line Items]
Total Long-Lived Assets	$ 21,840	$ 22,703