Balance Sheet Details - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Balance Sheet Details [Line Items]
Total inventories	$ 41,116,000		$ 39,572,000
Contract with customer, liability, revenue recognized	2,100,000
Contract cost deferred	400,000		500,000
Amortization related to contract cost deferred			400,000
Property, Plant and Equipment
Balance Sheet Details [Line Items]
Depreciation and amortization associated with property, plant and equipment	900,000	$ 500,000
Collateral pledged
Balance Sheet Details [Line Items]
Total inventories	$ 0		$ 9,600,000