Credit Facility	12 Months Ended
Dec. 31, 2018
Credit Facility
Credit Facility	11. Credit Facility In February 2019, we entered into a new Credit Agreement (the “New Credit Agreement”) and related agreements with Bank of America, N.A. acting as agent for lenders named therein, including Bank of America, N.A., Silicon Valley Bank, Bank of the West, Zions Bancorporation, N.A. dba California Bank & Trust, and Barclays Bank PLC (the “Lenders”), for a secured credit facility in the form of a revolving line of credit of up to $150,000 (the “Revolving Line of Credit”) and a term loan of $3,500 (the “Term Loan” and together with the Revolving Line of Credit, the “New Credit Facility”). The New Credit Facility replaced the November 2014 Credit Facility with Bank of America, N.A. acting as agents for lenders named therein, which expired on November 21, 2018. We may use borrowings under the New Credit Facility for general working capital and corporate purposes. In general, amounts borrowed under the New Credit Facility are secured by a lien against all of our assets, with certain exclusions. Amounts borrowed under the Revolving Line of Credit and Term Loan will bear variable interest at the greater of LIBOR plus 1.75% ‑ 2.75% or Lender’s Prime Rate plus 0.75% ‑ 1.75% per year and we will pay a fee of 0.25% ‑ 0.5% per year on any unused portion of the Revolving Line of Credit. The Term Loan requires quarterly payments of interest and principal until it is repaid in full on the maturity date but may be prepaid in whole or part at any time. Our New Credit Facility will mature on April 3, 2023. Repayment of amounts borrowed under the New Credit Facility may be accelerated in the event that we are in violation of the representations, warranties and covenants made in the New Credit Agreement, including certain financial covenants set forth therein, and under other specified default events including, but not limited to, non‑payment or inability to pay debt, breach of cross default provisions, insolvency provisions, and change of control. The Company is subject to customary financial and non-financial covenants under the New Credit Facility, including a minimum quarterly consolidated senior secured leverage ratio, a minimum quarterly consolidated total leverage ratio, a maximum quarterly consolidated fixed charge coverage ratio, and cash on hand minimums. The Company incurred $224 of debt issuance costs related to the New Credit Facility in 2018. Debt issuance costs will be amortized on a straight-line basis over the term of the New Credit Facility. Amortization expense related to debt issuance costs for the previous Credit Facility are included in interest and other expense in the accompanying consolidated statements of operations for the years ended December 31, 2018, 2017, and 2016. Amortization and interest expense for the November 2014 Credit Agreement capitalized amounted to $288, $773, and $823 for the years ended December 31, 2018, 2017, and 2016, respectively. Amortization and interest expense for the previous Credit Agreement recorded amounted to $106, $187, and $309 for the years ended December 31, 2018, 2017, and 2016, respectively. Interest rates for our previous Credit Facility for the period from January 1, 2018 to November 21, 2018 ranged from 4.2% to 6.8%.

11. Credit Facility

In February 2019, we entered into a new Credit Agreement (the “New Credit Agreement”) and related agreements with Bank of America, N.A. acting as agent for lenders named therein, including Bank of America, N.A., Silicon Valley Bank, Bank of the West, Zions Bancorporation, N.A. dba California Bank & Trust, and Barclays Bank PLC (the “Lenders”), for a secured credit facility in the form of a revolving line of credit of up to $150,000 (the “Revolving Line of Credit”) and a term loan of $3,500 (the “Term Loan” and together with the Revolving Line of Credit, the “New Credit Facility”). The New Credit Facility replaced the November 2014 Credit Facility with Bank of America, N.A. acting as agents for lenders named therein, which expired on November 21, 2018. We may use borrowings under the New Credit Facility for general working capital and corporate purposes. In general, amounts borrowed under the New Credit Facility are secured by a lien against all of our assets, with certain exclusions.

Amounts borrowed under the Revolving Line of Credit and Term Loan will bear variable interest at the greater of LIBOR plus 1.75% ‑ 2.75% or Lender’s Prime Rate plus 0.75% ‑ 1.75% per year and we will pay a fee of 0.25% ‑ 0.5% per year on any unused portion of the Revolving Line of Credit. The Term Loan requires quarterly payments of interest and principal until it is repaid in full on the maturity date but may be prepaid in whole or part at any time. Our New Credit Facility will mature on April 3, 2023. Repayment of amounts borrowed under the New Credit Facility may be accelerated in the event that we are in violation of the representations, warranties and covenants made in the New Credit Agreement, including certain financial covenants set forth therein, and under other specified default events including, but not limited to, non‑payment or inability to pay debt, breach of cross default provisions, insolvency provisions, and change of control.

The Company is subject to customary financial and non-financial covenants under the New Credit Facility, including a minimum quarterly consolidated senior secured leverage ratio, a minimum quarterly consolidated total leverage ratio, a maximum quarterly consolidated fixed charge coverage ratio, and cash on hand minimums.

The Company incurred $224 of debt issuance costs related to the New Credit Facility in 2018. Debt issuance costs will be amortized on a straight-line basis over the term of the New Credit Facility. Amortization expense related to debt issuance costs for the previous Credit Facility are included in interest and other expense in the accompanying consolidated statements of operations for the years ended December 31, 2018, 2017, and 2016. Amortization and interest expense for the November 2014 Credit Agreement capitalized amounted to $288, $773, and $823 for the years ended December 31, 2018, 2017, and 2016, respectively. Amortization and interest expense for the previous Credit Agreement recorded amounted to $106, $187, and $309 for the years ended December 31, 2018, 2017, and 2016, respectively. Interest rates for our previous Credit Facility for the period from January 1, 2018 to November 21, 2018 ranged from 4.2% to 6.8%.