XML 35 R24.htm IDEA: XBRL DOCUMENT v3.7.0.1
Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Inventory [Line Items]    
Raw materials and component parts $ 38,630 $ 36,821
Finished goods 72,689 60,156
Inventories $ 111,319 $ 96,977