Debt (Details)		9 Months Ended
	Jul. 24, 2020 USD ($)	Sep. 30, 2020 USD ($)
2020 Credit Facility | Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity	$ 45,000,000.0
Commitment fee percentage	0.35%
Uncommitted expansion	$ 45,000,000.0
Uncommitted expansion, minimum quick ratio covenant	1.5
2020 Credit Facility | Letter of Credit
Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity	$ 10,000,000.0
2020 Credit Facility | Bridge Loan
Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity	$ 10,000,000.0
LIBOR | 2020 Credit Facility | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	2.00%
Debt instrument, basis spread on variable rate, variable rate floor	1.00%
Adjusted Base Rate | 2020 Credit Facility | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate	1.00%
Silicon Valley Bank | Revolving Credit Facility
Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity	$ 25,000,000.0
Proceeds from line of credit		$ 0
Line of credit facility, decrease in borrowing capacity		$ 5,500,000