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Current Liabilities (Tables)
12 Months Ended
Dec. 31, 2020
Payables and Accruals [Abstract]  
Schedule of Accounts Payable and Accrued Liabilities
The following table provides information on certain current liabilities (in thousands):
 DECEMBER 31,
 20202019
Accounts payable$20,177 $20,267 
Accrued liabilities15,356 12,965 
Total Accounts payable and other accrued liabilities$35,533 $33,232 
Payroll and benefits$38,257 $38,035 
Payroll taxes21,842 992 
Health insurance liabilities4,641 3,907 
Workers’ compensation liabilities1,109 1,067 
Total Accrued payroll costs$65,849 $44,001