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, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
|
Property Plant And Equipment [Line Items] | ||||
Depreciation | $ 2,366 | $ 2,878 | $ 7,577 | $ 8,733 |
Depreciation and amortization | 2,835 | 3,388 | 9,004 | 10,217 |
Equipment | ||||
Property Plant And Equipment [Line Items] | ||||
Depreciation | 2,366 | 2,878 | 7,577 | 8,733 |
Other property and equipment | ||||
Property Plant And Equipment [Line Items] | ||||
Depreciation and amortization | $ 469 | $ 510 | $ 1,427 | $ 1,484 |
X | ||||||||||
- Definition The expense recognized in the current period that allocates the cost of a tangible asset used in providing revenue generating services over the asset's useful life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|