Quarterly report pursuant to Section 13 or 15(d)

Operating and Finance Lease Right-of-Use Assets - Summary of Future Lease Payments (Detail)

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Operating and Finance Lease Right-of-Use Assets - Summary of Future Lease Payments (Detail) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 01, 2019
Dec. 31, 2018
Lessee, Lease, Description [Line Items]      
Operating Leases, 2019 (Oct-Dec) $ 2,375    
Operating Leases, 2020 14,189    
Operating Leases, 2021 13,104    
Operating Leases, 2022 11,593    
Operating Leases, 2023 10,078    
Operating Leases, Thereafter 44,104    
Undiscounted Cash Flows 95,443    
Less: imputed interest (30,909)    
Reconciliation to lease liabilities:      
Lease liabilities - current 8,191    
Lease liabilities - long-term 56,343    
Total operating lease liabilities 64,534 $ 74,400  
Finance Leases, 2019 (Oct-Dec) 75    
Finance Leases, 2020 58    
Finance Leases, 2021 45    
Finance Leases, 2022 30    
Finance Leases, 2023 8    
Finance Leases, Undiscounted Cash Flows 216    
Less: Finance Leases, imputed interest (14)    
Finance Leases, Reconciliation to lease liabilities:      
Finance Leases, Lease liabilities - current 69   $ 58
Finance Leases, Lease liabilities - long-term 133   105
Total Finance Lease Liabilities 202    
Contractual Obligations, 2019 (Oct-Dec) 2,450    
Contractual Obligations, 2020 14,247   13,394
Contractual Obligations, 2021 13,149   12,394
Contractual Obligations, 2022 11,623   11,247
Contractual Obligations, 2023 10,086   9,826
Contractual Obligations, Thereafter 44,104   61,473
Contractual Obligations, Undiscounted Cash Flows 95,659   $ 121,755
Less: Contractual Obligations, imputed interest (30,923)    
Contractual Obligations, Reconciliation to lease liabilities:      
Contractual Obligations, Lease liabilities - current 8,260    
Contractual Obligations, Lease liabilities - long-term 56,476    
Total Contractual Obligations, Lease Liabilities 64,736    
Related Party Lease [Member]      
Lessee, Lease, Description [Line Items]      
Operating Leases, 2019 (Oct-Dec) 416    
Operating Leases, 2020 1,602    
Operating Leases, 2021 1,619    
Operating Leases, 2022 1,612    
Operating Leases, 2023 1,169    
Operating Leases, Thereafter 6,112    
Undiscounted Cash Flows 12,530    
Less: imputed interest (4,123)    
Reconciliation to lease liabilities:      
Lease liabilities - current 945    
Lease liabilities - long-term 7,462    
Total operating lease liabilities 8,407    
Other Operating Leases [Member]      
Lessee, Lease, Description [Line Items]      
Operating Leases, 2019 (Oct-Dec) 1,959    
Operating Leases, 2020 12,587    
Operating Leases, 2021 11,485    
Operating Leases, 2022 9,981    
Operating Leases, 2023 8,909    
Operating Leases, Thereafter 37,992    
Undiscounted Cash Flows 82,913    
Less: imputed interest (26,786)    
Reconciliation to lease liabilities:      
Lease liabilities - current 7,246    
Lease liabilities - long-term 48,881    
Total operating lease liabilities $ 56,127