XML 73 R54.htm IDEA: XBRL DOCUMENT v3.6.0.2
Equipment Lease Obligations - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Dec. 31, 2014
Capital Leased Assets [Line Items]            
Capital leased assets, depreciation expense $ 73 $ 73 $ 219 $ 219 $ 366 $ 245
Equipment            
Capital Leased Assets [Line Items]            
Capital leased assets, gross $ 2,853   $ 2,853   $ 2,853