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Other Accrued Liabilities	12 Months Ended
Other Accrued Liabilities	Dec. 31, 2017
Text Block [Abstract]
Other Accrued Liabilities	6. OTHER ACCRUED LIABILITIES The Company has other accrued liabilities at December 31, 2017 and December 31, 2016 of $16.6 million and $15.1 million, respectively. Liabilities for self-insurance accruals were $4.1 million and $3.8 million, amounts due for sales incentive programs were $5.5 million and $5.3 million, short term environmental accruals were $1.1 million and $0.0 million, and deferred rent was $0.5 million and $0.6 million at December 31, 2017 and 2016, respectively.