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Concentration of Risk	12 Months Ended
Concentration of Risk	Dec. 31, 2016
Risks and Uncertainties [Abstract]
Concentration of Risk	14. Concentration of Risk The Company’s Louisiana facilities accounted for approximately 18.5%, 21.0% and 22.7% of net service revenue during the years ended December 31, 2016, 2015 and 2014, respectively. Any material change in the current economic or competitive conditions in Louisiana could have a disproportionate effect on the Company’s overall business results.