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COMPONENTS OF THE COMPANY'S CONDENSED CONSOLIDATED BALANCE SHEETS Intangible Assets (Details) - USD ($) $ in Thousands | Jun. 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 |  | (31,587) | (28,409)
Total intangible assets |  | 28,324 | 31,502
Finite-Lived Intangible Assets, Net | [1] | 22,373 |
Developed technology |  |  |
Schedule of Intangible Assets [Table] [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross |  | 33,270 | 33,270
Finite-Lived Intangible Assets, Accumulated Amortization |  | (17,333) | (15,455)
Finite-Lived Intangible Assets, Net |  | 15,937 | 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 |  | (13,594) | (12,474)
Finite-Lived Intangible Assets, Net |  | 6,436 | 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)
Finite-Lived Intangible Assets, Net |  | 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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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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