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Leases - Schedule of Lease Cost (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Lease Cost        
Total lease costs $ 4,179 $ 4,277 $ 11,612 $ 12,212
Operating Expenses        
Lease Cost        
Operating 3,227 3,535 8,953 9,946
Amortization 841 600 2,307 1,811
Interest expense $ 111 $ 142 $ 352 $ 455