Accrued and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Accrued payroll and employee benefits	$ 2,748	$ 1,837
Accrued insurance	2,895	2,569
Accrued legal	204	295
Accrued taxes	867	695
Accrued interest	263	179
Accrued operating costs	3,422	2,653
Accrued other	450	394
Current operating lease liabilities	1,059	1,442
Total accrued and other current liabilities	$ 11,908	$ 10,064