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ACCRUED LIABILITIES AND OTHER LIABILITIES (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Accrued liabilities [Abstract]    
Employee compensation, related taxes and benefits $ 15,024 $ 13,399
Taxes other than income and withholding 10,856 7,968
Self-insurance reserves 5,945 5,919
Other 10,079 14,774
Accrued liabilities 41,904 42,060
Other liabilities [Abstract]    
Straight-line lease liability 8,797 9,980
Self-insurance reserves 3,150 3,173
Other 12,724 12,323
Other liabilities $ 24,671 $ 25,476