Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities - Summary (Details)

v3.19.1
Accrued Liabilities - Summary (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Current accrued liabilities    
Accrued payables $ 15,557 $ 12,943
Payroll and payroll taxes 4,716 7,051
Bonus 4,548 6,117
Workers compensation insurance premiums 1,657 1,532
Sales tax 2,303 2,599
Ad valorem tax 690 581
Health insurance claims 1,160 921
Other accrued liabilities 4,829 5,789
Total accrued liabilities $ 35,460 $ 37,533