Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Components - Summary of Depreciation and Amortization Expense of Property and Equipment and Rental Equipment (Details)

v3.5.0.2
Balance Sheet Components - Summary of Depreciation and Amortization Expense of Property and Equipment and Rental Equipment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Property Plant And Equipment [Line Items]        
Depreciation $ 2,878 $ 3,029 $ 8,733 $ 8,929
Depreciation and amortization 3,388 3,539 10,217 10,404
Equipment        
Property Plant And Equipment [Line Items]        
Depreciation 2,878 3,029 8,733 8,929
Other property and equipment        
Property Plant And Equipment [Line Items]        
Depreciation and amortization $ 510 $ 510 $ 1,484 $ 1,475