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Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities    
Operating cash flows from operating leases   $ 2,604
Operating cash flows from finance leases $ 89 272
Financing cash flows from finance leases   368
Operating leases   $ 3,045