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OTHER ACCRUED LIABILITIES (Tables)
6 Months Ended
Jun. 30, 2017
Other Liabilities Disclosure [Abstract]  
Other Accrued Liabilities
A summary of other accrued liabilities, classified as current liabilities, follows:
 
June 30,
2017
 
December 31,
2016
Self insurance reserve - current portion
$
4,229

 
$
3,836

Other accrued liabilities
16,368

 
11,080

Total other accrued liabilities
$
20,597

 
$
14,916