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v3.19.1

Organization, Basis of Presentation and Summary of Significant Accounting Policies - Impact of Adoption of ASC on Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Jan. 01, 2019 | Dec. 31, 2018
--- | --- | --- | ---
ASSETS |  |  |
Property and equipment, net | $ 18,281 |  | $ 78,723
Operating lease right-of-use assets | 28,190 |  |
Prepaid rent | 33,559 |  |
Liabilities: |  |  |
Operating lease liabilities - current | 1,320 |  |
Deferred rent |  |  | 271
Build-to-suit lease obligation | 13,299 |  | 27,689
Accumulated deficit | $ (603,949) |  | (562,696)
Build-to-Suit Lease [Member] |  |  |
Liabilities: |  |  |
Build-to-suit lease obligation |  |  | $ 27,689
Topic 842 [Member] |  |  |
ASSETS |  |  |
Property and equipment, net |  | $ 16,223 |
Operating lease right-of-use assets |  | 8,753 |
Prepaid rent |  | 36,025 |
Liabilities: |  |  |
Operating lease liabilities - current |  | 1,408 |
Build-to-suit lease obligation |  | 7,933 |
Accumulated deficit |  | (561,799) |
Topic 842 [Member] | Adjustments Due to the Adoption of ASC Topic 842 [Member] |  |  |
ASSETS |  |  |
Property and equipment, net |  | (62,500) |
Operating lease right-of-use assets |  | 8,753 |
Prepaid rent |  | 36,025 |
Liabilities: |  |  |
Operating lease liabilities - current |  | 1,408 |
Deferred rent |  | (271) |
Build-to-suit lease obligation |  | 7,933 |
Accumulated deficit |  | 897 |
Topic 842 [Member] | Build-to-Suit Lease [Member] | Adjustments Due to the Adoption of ASC Topic 842 [Member] |  |  |
Liabilities: |  |  |
Build-to-suit lease obligation |  | $ (27,689) |

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