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Significant Accounting Policies - Additional Information (Detail)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
Customer
Sales
Sep. 30, 2021
USD ($)
Segment
Customer
Sales
Sep. 30, 2020
USD ($)
Sep. 22, 2021
USD ($)
Significant Accounting Policies [Line Items]        
Trade receivables, credit period   30 days    
Maturities period   24 months    
Unrealized gain (loss) on held-to-maturity securities $ 100 $ 100 $ 900  
Number of operating segments | Segment   1    
Number of sales representatives | Sales 300 300    
Cash expenditures $ 13,809 $ 13,809    
Restructuring and transformation initiative expense $ 14,115 $ 14,115    
Change in accounting principle, accounting standards update, adopted [true false] true true    
Change in accounting principle, accounting standards update, adoption date Jan. 01, 2021 Jan. 01, 2021    
Change in accounting principle, accounting standards update, immaterial effect [true false] true true    
Accounting Standards Update [Extensible List]   us-gaap:AccountingStandardsUpdate201912Member    
One-time Termination Benefits | Go-to-Market Strategy        
Significant Accounting Policies [Line Items]        
Cash expenditures       $ 14,100
Short Term Investments        
Significant Accounting Policies [Line Items]        
Maturities period   12 months    
Long Term Investments        
Significant Accounting Policies [Line Items]        
Maturities period   12 months    
Money Market Instruments        
Significant Accounting Policies [Line Items]        
Maturities period   90 days    
Gross Product Sales | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Number of customers | Customer 3 3    
Customer A | Gross Product Sales | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Concentration risk percentage   27.00% 25.00%  
Customer A | Accounts Receivable | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Concentration risk percentage   34.00% 37.00%  
Customer B | Gross Product Sales | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Concentration risk percentage   37.00% 37.00%  
Customer B | Accounts Receivable | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Concentration risk percentage   37.00% 32.00%  
Customer C | Gross Product Sales | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Concentration risk percentage   28.00% 30.00%  
Customer C | Accounts Receivable | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Concentration risk percentage   21.00% 25.00%  
Internal Revenue Service (IRS)        
Significant Accounting Policies [Line Items]        
Open tax year   2018    
Earliest Tax Year | New Jersey Department of Treasury        
Significant Accounting Policies [Line Items]        
Open tax year   2012    
Earliest Tax Year | New York State Department of Taxation and Finance        
Significant Accounting Policies [Line Items]        
Open tax year   2017    
Latest Tax Year | New Jersey Department of Treasury        
Significant Accounting Policies [Line Items]        
Open tax year   2015    
Latest Tax Year | New York State Department of Taxation and Finance        
Significant Accounting Policies [Line Items]        
Open tax year   2018