Quarterly report pursuant to Section 13 or 15(d)

Operating Leases - Schedule of Operating Lease Cost (Detail)

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Operating Leases - Schedule of Operating Lease Cost (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2019
Operating lease cost:    
Lease cost $ 6,148 $ 18,163
Variable lease cost 1,423 3,913
Sublease income (68) (199)
Total operating lease cost $ 7,503 $ 21,877