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Lease Obligations - Schedule of Supplemental Cash Flow Information Related To Leases (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2019
USD ($)
Cash paid for amounts included in the measurement of lease liabilities  
Operating cash flows from operating leases $ 95
Financing cash flows from finance leases 1,672
Interest paid 340
Noncash activities from right-of-use assets obtained in exchange for lease obligations:  
Operating leases $ 497