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, 2019
Jan. 01, 2019
Lessee, Lease, Description [Line Items]    
Operating leases ROU assets $ 56,800 $ 65,000
Operating lease liabilities (current) 8,191  
Operating lease liabilities (non-current) 56,343  
Total operating lease liabilities $ 64,534 $ 74,400
Weighted Average Remaining Lease Term, Operating leases 8 years 9 months 18 days  
Weighted Average Remaining Lease Term, Finance leases 3 years 4 months 24 days  
Weighted Average Discount Rate, Operating leases 8.20%  
Weighted Average Discount Rate, Finance leases 4.54%  
Related Party Lease [Member]    
Lessee, Lease, Description [Line Items]    
Operating leases ROU assets $ 8,224  
Operating lease liabilities (current) 945  
Operating lease liabilities (non-current) 7,462  
Total operating lease liabilities 8,407  
Other Operating Leases [Member]    
Lessee, Lease, Description [Line Items]    
Operating leases ROU assets 48,576  
Operating lease liabilities (current) 7,246  
Operating lease liabilities (non-current) 48,881  
Total operating lease liabilities $ 56,127