Balance Sheet Details - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accrued payroll and employee liabilities
Accrued employee salaries and benefits	$ 1,691	$ 3,047
Accrued bonuses	8,479	9,545
Accrued vacation	3,427	2,656
Total accrued payroll and employee liabilities	13,597	15,248
Other accrued liabilities
Accrued product sales allowances	24,571	27,939
Accrued consulting and professional fees	3,450	7,742
Accrued accounts payable	104	310
Other accrued liabilities	244	544
Total other accrued liabilities	$ 28,369	$ 36,535