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Accrued Liabilities
 12 Months Ended
Dec. 31, 2015
Payables and Accruals [Abstract]  
Accrued Liabilities
Accrued Liabilities

Accrued liabilities at December 31, 2015 and 2014 consisted of the following:
 
2015
 
2014
Accrued salaries, wages and benefits
$
8,115

 
$
4,925

Accrual for self-insurance liabilities
7,998

 
7,490

Property taxes
2,020

 
2,146

Sales tax
1,991

 
676

Interest
112

 
19

Payable to TAS Seller
728

 
—

Other accrued expenses
1,185

 
547

 
$
22,149

 
$
15,803