Debt	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Debt	Debt In July 2020, we entered into a new $45.0 million senior secured credit facility (“2020 Credit Facility”) with Silicon Valley Bank in connection with the expiration of our $25.0 million revolving credit facility ("2017 Credit Facility"). The 2020 Credit Facility bears interest at either LIBOR plus 2%, with a 1% LIBOR floor, or the base rate plus 1%, and terminates on July 24, 2022. A commitment fee of 0.35% per annum is payable quarterly in arrears based on the unused portion. The 2020 Credit Facility includes a $45.0 million uncommitted expansion, including a $10.0 million sublimit for the issuance of letters of credit and a swingline sub-facility of up to $10.0 million, and has a financial covenant requiring a minimum consolidated quick ratio of at least 1.5:1.0 on the last day of each quarter.In the nine months ended September 30, 2020, there were no amounts outstanding under the 2020 Credit Facility or, prior to its expiration, the 2017 Credit Facility. At September 30, 2020, we were in compliance with the financial covenant and our borrowing capacity was reduced by $5.5 million related to standby letters of credit.