Credit Facility	3 Months Ended
Mar. 31, 2017
Line of Credit Facility [Abstract]
Credit Facility	Credit Facility In November 2016, we entered into a loan and security agreement (the “2016 Credit Facility”) with Silicon Valley Bank ("SVB"), as the lender. The 2016 Credit Facility provides a three-year, $25.0 million revolving credit subfacility, which includes a maximum of $25.0 million letter of credit subfacility. When the balance of our cash, cash equivalents and marketable securities minus outstanding revolving loans and letters of credit equals or exceeds $50.0 million, loans may be advanced under the 2016 Credit Facility up to the full $25.0 million. When the balance of our cash, cash equivalents and marketable securities minus outstanding revolving loans and letters of credit falls below $50.0 million, loans may be advanced under the 2016 Credit Facility based on a borrowing base equal to a specified percentage of the value of our eligible accounts receivable. The loans bear interest, at our option, at (i) the prime rate reported in The Wall Street Journal, minus 0.50% or (ii) a LIBOR rate determined in accordance with the 2016 Credit Facility, plus 2.50%. We are required to pay customary closing fees, commitment fees and letter of credit fees for a facility of this size and type. Our obligations under the 2016 Credit Facility are secured by substantially all of our assets, excluding our intellectual property. The 2016 Credit Facility contains customary affirmative and negative covenants. In addition, the 2016 Credit Facility requires us to maintain compliance with an adjusted quick ratio of not less than 1.50:1.00, as determined in accordance with the 2016 Credit Facility. As of March 31, 2017, we had no outstanding balance under the 2016 Credit Facility and were in compliance with all facility covenants.

Credit Facility

3 Months Ended

Mar. 31, 2017

In November 2016, we entered into a loan and security agreement (the “2016 Credit Facility”) with Silicon Valley Bank ("SVB"), as the lender. The 2016 Credit Facility provides a three-year, $25.0 million revolving credit subfacility, which includes a maximum of $25.0 million letter of credit subfacility. When the balance of our cash, cash equivalents and marketable securities minus outstanding revolving loans and letters of credit equals or exceeds $50.0 million, loans may be advanced under the 2016 Credit Facility up to the full $25.0 million. When the balance of our cash, cash equivalents and marketable securities minus outstanding revolving loans and letters of credit falls below $50.0 million, loans may be advanced under the 2016 Credit Facility based on a borrowing base equal to a specified percentage of the value of our eligible accounts receivable. The loans bear interest, at our option, at (i) the prime rate reported in The Wall Street Journal, minus 0.50% or (ii) a LIBOR rate determined in accordance with the 2016 Credit Facility, plus 2.50%. We are required to pay customary closing fees, commitment fees and letter of credit fees for a facility of this size and type.

Our obligations under the 2016 Credit Facility are secured by substantially all of our assets, excluding our intellectual property. The 2016 Credit Facility contains customary affirmative and negative covenants. In addition, the 2016 Credit Facility requires us to maintain compliance with an adjusted quick ratio of not less than 1.50:1.00, as determined in accordance with the 2016 Credit Facility. As of March 31, 2017, we had no outstanding balance under the 2016 Credit Facility and were in compliance with all facility covenants.