Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Assets Relating to Finance Leases Included in Equipment (Detail)

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Commitments and Contingencies - Assets Relating to Finance Leases Included in Equipment (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Commitments And Contingencies [Line Items]    
Finance lease assets, gross $ 232 $ 198
Less: Accumulated depreciation and amortization (446) (481)
Finance lease assets, net 233 198
Furniture and Equipment    
Commitments And Contingencies [Line Items]    
Finance lease assets, gross $ 679 $ 679