Summary of Significant Accounting Policies and Recent Accounting Pronouncements - Additional Information (Detail) $ / shares in Units, $ in Thousands		3 Months Ended				6 Months Ended		12 Months Ended
	Jan. 02, 2021 USD ($)	Jun. 30, 2021 USD ($) $ / shares	Mar. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2021 USD ($) Segment $ / shares	Jun. 30, 2020 USD ($)	Dec. 31, 2020
Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | Segment						1
Net loss		$ (81,405)	$ (167,250)	$ (150,820)	$ (17,492)	$ (248,655)	$ (168,312)
ASU 2020-06
Summary Of Significant Accounting Policies [Line Items]
Increase in convertible notes	$ 96,800
Decrease in accumulated deficit	60,200
Decrease in additional paid-in-capital	157,000
Interest expense reduced	$ 5,500
Net loss		$ 5,500				$ 11,000
Increase in diluted earnings per share (in dollar per share) | $ / shares		$ 0.07				$ 0.14
Product Revenues [Member] | Customer One [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration of credit risk percentage		46.00%		50.00%		48.00%	47.00%
Product Revenues [Member] | Customer Two [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration of credit risk percentage		40.00%		39.00%		40.00%	40.00%
Product Revenues [Member] | Customer Three [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration of credit risk percentage		11.00%		10.00%		9.00%	11.00%
Accounts Receivable [Member] | Customer One [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration of credit risk percentage						47.00%		45.00%
Accounts Receivable [Member] | Customer Two [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration of credit risk percentage						39.00%		41.00%
Accounts Receivable [Member] | Customer Three [Member]
Summary Of Significant Accounting Policies [Line Items]
Concentration of credit risk percentage						10.00%		9.00%
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Accounts receivable payment term						60 days
Minimum [Member] | Outside of U.S. [Member]
Summary Of Significant Accounting Policies [Line Items]
Accounts receivable payment term						45 days
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Accounts receivable payment term						91 days
Maximum [Member] | Outside of U.S. [Member]
Summary Of Significant Accounting Policies [Line Items]
Accounts receivable payment term						150 days