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Organization and Summary of Significant Accounting Policies (Error Correction) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Statement of Operations: |  |
Interest expense | $ (4,420) | $ (10,290)
Total other expense, net | (3,352) | (10,088)
Net loss | 16,700 | $ (59,223)
Net loss per share, basic and diluted (in dollars per share) |  | $ (0.26)
Statements of Comprehensive Loss: |  |
Comprehensive loss | 16,790 | $ (59,033)
Statements of Cash Flows: |  |
Net loss | 16,700 | (59,223)
Accretion of debt discount and debt issuance costs | $ 89 | 3,161
Restatement Adjustment [Member] | Correction of Amortization of Debt Discount Associated with the 2019 Notes [Member] |  |
Statement of Operations: |  |
Interest expense |  | 2,124
Total other expense, net |  | 2,124
Net loss |  | $ 2,124
Net loss per share, basic and diluted (in dollars per share) |  | $ 0.01
Statements of Comprehensive Loss: |  |
Comprehensive loss |  | $ 2,124
Statements of Cash Flows: |  |
Net loss |  | 2,124
Accretion of debt discount and debt issuance costs |  | $ (2,124)

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