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COMPONENTS OF THE COMPANY'S CONDENSED CONSOLIDATED BALANCE SHEETS Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Schedule of Intangible Assets [Table] [Line Items] |  |  |
Intangible Assets, Gross |  | $ 59,911 | $ 59,911
Finite-Lived Intangible Assets, Accumulated Amortization |  | (33,040) | (28,409)
Total intangible assets |  | 26,871 | 31,502
Total (1) | [1] | 20,920 |
Developed technology |  |  |
Schedule of Intangible Assets [Table] [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 33,270 | 33,270
Finite-Lived Intangible Assets, Accumulated Amortization |  | (18,272) | (15,455)
Total (1) |  | 14,998 | 17,815
Customer relationships |  |  |
Schedule of Intangible Assets [Table] [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 20,030 | 20,030
Finite-Lived Intangible Assets, Accumulated Amortization |  | (14,108) | (12,474)
Total (1) |  | 5,922 | 7,556
In-place leases |  |  |
Schedule of Intangible Assets [Table] [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 660 | 660
Finite-Lived Intangible Assets, Accumulated Amortization |  | (660) | (480)
Total (1) |  | 0 | 180
Domain name |  |  |
Schedule of Intangible Assets [Table] [Line Items] |  |  |
Indefinite-Lived Intangible Assets |  | 1,261 | 1,261
In-process research and development |  |  |
Schedule of Intangible Assets [Table] [Line Items] |  |  |
Indefinite-Lived Intangible Assets |  | $ 4,690 | $ 4,690
[1] | The total above excludes $4.7 million of in-process research and development that will be amortized, upon completion of development, over the estimated useful life of the technology.

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