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Leases - Schedule of Lease Cost (Detail)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
USD ($)
Finance lease costs:  
Depreciation of leased assets $ 1,123
Interest of lease liabilities 997
Total finance lease costs 2,120
Operating lease costs 16,529
Variable lease costs 886
Short term lease costs 1,447
Other lease costs 1,445
Total rents and leases 20,307
Total lease costs $ 22,427