Quarterly report pursuant to Section 13 or 15(d)

Leases, Commitments and Contingencies - Additional Information (Detail)

v3.22.2.2
Leases, Commitments and Contingencies - Additional Information (Detail)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Feb. 28, 2021
ft²
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Other Commitments [Line Items]            
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]   Other Assets Noncurrent   Other Assets Noncurrent    
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]   Other Accrued Liabilities Current   Other Accrued Liabilities Current    
Non-current portion of operating lease liabilities   $ 1,955   $ 1,955    
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]   Other Liabilities Noncurrent   Other Liabilities Noncurrent    
Operating lease, cash payments   $ 688   $ 2,009    
Operating lease, weighted average remaining lease term   2 years 2 months 12 days   2 years 2 months 12 days    
Operating lease, weighted average discount rate   7.80%   7.80%    
Loss on disposal of property and equipment and leasehold improvements         $ (1,894)  
Loss on sublease         1,211  
Rent expense           $ 4,668
Sublease income   $ 277   $ 831    
Minimum sublease rental income to be received in the future under noncancelable subleases           $ 3,402
March 2022 Acquisition [Member]            
Other Commitments [Line Items]            
Purchase consideration payment within ten days of first anniversary of acquisition   1,500   1,500    
Purchase consideration payment within ten days of second anniversary of acquisition   1,500   1,500    
VocaliD [Member]            
Other Commitments [Line Items]            
Purchase consideration payments on first anniversary of acquisition   1,000   1,000    
Purchase consideration payments on 18-month anniversary of acquisition   1,000   1,000    
VSL Acquisition [Member]            
Other Commitments [Line Items]            
Purchase consideration payments on 18-month anniversary of acquisition   300   300    
Office Sublease [Member]            
Other Commitments [Line Items]            
Area of Office Space Subleased | ft² 37,875          
Lease Expiration Date Dec. 31, 2024          
Sublease charges         3,367  
Loss on disposal of property and equipment and leasehold improvements         (1,894)  
Loss on sublease         1,211  
Initial direct costs         262  
Rent expense   $ 620 $ 428 $ 1,882 $ 4,672  
Minimum [Member]            
Other Commitments [Line Items]            
Operating lease, remaining lease term   1 year   1 year    
Operating lease, renewal term   1 year   1 year    
Operating lease right-of-use assets   $ 2,013   $ 2,013    
Current portion of operating lease liabilities   $ 2,096   $ 2,096    
Maximum [Member]            
Other Commitments [Line Items]            
Operating lease, remaining lease term   5 years   5 years    
Operating lease, renewal term   5 years   5 years