Quarterly report pursuant to Section 13 or 15(d)

Operating and Finance Lease Right-of-Use Assets - Supplemental Balance Sheet Information Related to Leases (Detail)

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Operating and Finance Lease Right-of-Use Assets - Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Lessee, Lease, Description [Line Items]    
Operating leases ROU assets $ 44,100 $ 48,203
Operating lease liabilities (current) 8,604 8,963
Operating lease liabilities (non-current) 43,180 $ 47,740
Total operating lease liabilities $ 51,784  
Weighted Average Remaining Lease Term, Operating leases 7 years 9 months 18 days  
Weighted Average Remaining Lease Term, Finance leases 2 years 10 months 24 days  
Weighted Average Discount Rate, Operating leases 7.98%  
Weighted Average Discount Rate, Finance leases 5.74%  
Related Party Lease [Member]    
Lessee, Lease, Description [Line Items]    
Operating leases ROU assets $ 6,303  
Operating lease liabilities (current) 1,004  
Operating lease liabilities (non-current) 5,479  
Total operating lease liabilities 6,483  
Other Operating Leases [Member]    
Lessee, Lease, Description [Line Items]    
Operating leases ROU assets 37,797  
Operating lease liabilities (current) 7,600  
Operating lease liabilities (non-current) 37,701  
Total operating lease liabilities $ 45,301