Quarterly report pursuant to Section 13 or 15(d)

Operating and Finance Lease Right-of-Use Assets - Components of Lease Expense (Detail)

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Operating and Finance Lease Right-of-Use Assets - Components of Lease Expense (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2019
USD ($)
Leases [Abstract]  
Amortization of finance lease ROU Assets $ 55
Interest on finance lease liabilities 5
Finance lease expense 60
Operating lease expense 6,969
Variable lease expense 472
Short-term lease expense 483
Total lease expense $ 7,984