Debt	12 Months Ended
Dec. 31, 2019
Debt Disclosure [Abstract]
Debt	Debt On December 19, 2018, the Company prepaid in full all outstanding indebtedness under, and terminated, the Loan and Security Agreement dated as of September 9, 2016, by and between the Company, Silicon Valley Bank as Agent and Silicon Valley Bank, MidCap Financial Trust, MidCap Funding III Trust and other lenders listed therein as lenders (SVB Loan Agreement), as amended December 30, 2016, May 9, 2017 and December 6, 2017, which termination was effective December 19, 2018. Warrants were issued to SVB and MidCap in conjunction with the modified debt agreement as discussed in note 13. On the date of termination, the Company paid in full $17.1 million in outstanding borrowings at the time of termination. In connection with the termination of the SVB Loan Agreement, the Company paid an additional prepayment premium of 1.5% in the amount of $0.2 million and a final payment of 3.6% in the amount of $0.5 million. The prepayment of the debt in 2018 and the debt modification in 2017 were accounted for as debt extinguishments. The Company considered whether creditors remained the same or changed and whether the changes in debt terms were substantial. After performing the assessment in accordance with accounting guidance for the modification of debt arrangements, the term loan portion was determined to be accounted for as a debt extinguishment under the modified terms in 2017 and the repayment of both the term loans and revolving credit agreement in 2018 was also accounted for as a debt extinguishment. As a result, the unamortized deferred financing costs, prepayment penalty and the accelerated payment of the final payment was recognized as a loss on extinguishment of debt of $0.8 million for the year ended December 31, 2018. The unamortized deferred financing costs, lender fees and warrant issuance costs allocated to the term loan under the modified terms were recognized as a loss on extinguishment of debt of $0.9 million for the year-ended December 31, 2017.

Debt

12 Months Ended

Dec. 31, 2019

On December 19, 2018, the Company prepaid in full all outstanding indebtedness under, and terminated, the Loan and Security Agreement dated as of September 9, 2016, by and between the Company, Silicon Valley Bank as Agent and Silicon Valley Bank, MidCap Financial Trust, MidCap Funding III Trust and other lenders listed therein as lenders (SVB Loan Agreement), as amended December 30, 2016, May 9, 2017 and December 6, 2017, which termination was effective December 19, 2018. Warrants were issued to SVB and MidCap in conjunction with the modified debt agreement as discussed in note 13. On the date of termination, the Company paid in full $17.1 million in outstanding borrowings at the time of termination. In connection with the termination of the SVB Loan Agreement, the Company paid an additional prepayment premium of 1.5% in the amount of $0.2 million and a final payment of 3.6% in the amount of $0.5 million.

The prepayment of the debt in 2018 and the debt modification in 2017 were accounted for as debt extinguishments. The Company considered whether creditors remained the same or changed and whether the changes in debt terms were substantial. After performing the assessment in accordance with accounting guidance for the modification of debt arrangements, the term loan portion was determined to be accounted for as a debt extinguishment under the modified terms in 2017 and the repayment of both the term loans and revolving credit agreement in 2018 was also accounted for as a debt extinguishment. As a result, the unamortized deferred financing costs, prepayment penalty and the accelerated payment of the final payment was recognized as a loss on extinguishment of debt of $0.8 million for the year ended December 31, 2018. The unamortized deferred financing costs, lender fees and warrant issuance costs allocated to the term loan under the modified terms were recognized as a loss on extinguishment of debt of $0.9 million for the year-ended December 31, 2017.