Concentration of Risk	12 Months Ended
Concentration of Risk	Dec. 31, 2014
Risks and Uncertainties [Abstract]
Concentration of Risk	14. Concentration of Risk The Company’s Louisiana facilities accounted for approximately 22.7%, 26.0% and 28.5% of net service revenue during the years ended December 31, 2014, 2013 and 2012, 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.

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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