v3.3.1.900

Debt (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 30, 2015 USD ($) | Oct. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Dec. 31, 2014 USD ($) item | Apr. 30, 2013 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) item | Dec. 31, 2013 USD ($) | Apr. 30, 2014 $ / shares | Dec. 31, 2007 $ / shares
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  | $ 3,505 | $ 4,219 | $ 1,873 |  |
Royalty due |  |  |  |  |  | 1,800 |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 0.0978
Prepayment penalty |  |  |  |  |  | 7,313 |  |  |  |
Repayments of equipment financing |  |  |  |  |  | $ 5,850 | $ 2,480 | $ 475 |  |
Secured Loan Arrangement |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  | 19.80% |  | 20.90% | 19.80% | 12.60% |  |
Number of shares of common stock that may be called by warrants | shares |  |  |  |  | 376,691 |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  | $ 2.3229 |  |  |  | $ 2.3229 |
Prepayment premium (as a percent) |  | 10.00% |  |  | 10.00% |  |  |  |  |
Debt paid off |  | $ 20,000 |  |  |  |  |  |  |  |
Amount paid to extinguish debt |  | 28,000 |  |  |  |  |  |  |  |
Prepayment penalty |  | 2,000 |  |  |  | $ (2,000) |  |  |  |
Credit Agreement |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Borrowing capacity |  |  |  |  | $ 40,000 |  |  |  |  |
Borrowings |  |  |  |  | $ 20,000 |  |  |  |  |
Base interest rate (as a percent) |  |  |  |  | 1.00% |  |  |  |  |
Spread on base interest rate (as a percent) |  |  |  |  | 8.00% |  |  |  |  |
Interest rate floor (as a percent) |  |  |  |  | 9.00% |  |  |  |  |
Interest expense |  |  |  |  |  | 1,400 | $ 1,800 | $ 1,300 |  |
Minimum liquidity required under debt covenants |  |  |  |  | $ 5,000 |  |  |  |  |
Royalty Agreement |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Royalty payment percentage owed on fiscal year revenues up to threshold |  |  |  |  | 1.00% |  |  |  |  |
Revenue threshold amount for determination of royalty payment percentage |  |  |  |  | $ 50,000 |  |  |  |  |
Royalty payment percentage owed on fiscal year revenues in excess of threshold |  |  |  |  | 1.50% |  |  |  |  |
Interest expense |  | 6,000 |  |  |  | 7,100 | $ 2,200 | $ 500 |  |
Prepayment penalty |  |  |  |  |  | $ (5,300) |  |  |  |
Line Of Credit-UBS |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Borrowing capacity |  |  | $ 50,000 |  |  |  |  |  |  |
Borrowings | $ 10,000 | $ 32,000 |  |  |  |  |  |  |  |
Effective interest rate (as a percent) | 0.85% | 0.84% |  |  |  |  |  |  |  |
Line Of Credit-UBS | 30-day LIBOR |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Spread on variable rate (as a percent) |  |  | 0.65% |  |  |  |  |  |  |
Equipment Financing Facility |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Borrowing capacity |  |  |  |  | $ 5,000 |  |  |  |  |
Borrowings |  |  |  | $ 5,900 |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  | 6.35% | 7.35% |  | 6.35% |  |  |
Number of payment installments | item |  |  |  | 30 |  |  | 30 |  |  |
Repayments of equipment financing |  |  | $ 4,100 |  |  |  |  |  |  |
Equipment Financing Facility | 30-day LIBOR |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Spread on reference rate (as a percent) |  |  |  |  | 2.50% |  |  |  |  |
Spread on variable rate (as a percent) |  |  |  |  | 4.10% |  |  |  |  |
Equipment Financing Facility | Prime |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Spread on reference rate (as a percent) |  |  |  | 3.10% |  |  |  |  |  |

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