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Leases - Schedule of Maturities of Lease Liabilities (Detail) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 01, 2019
Leases [Abstract]    
2020 $ 4,137  
2021 4,150  
2022 4,114  
2023 3,542  
2024 3,516  
Thereafter 118,216  
Total lease payments 137,675  
Less imputed interest (97,157)  
Total $ 40,518 $ 40,300