Accrued Insurance Claims	12 Months Ended
Dec. 31, 2014
Payables and Accruals [Abstract]
Accrued Insurance Claims	Accrued Insurance Claims We currently have a Paid Loss Retrospective Insurance Plan for general liability and workers’ compensation insurance, which comprise approximately 35% of our liabilities at December 31, 2014. Under our insurance plans for general liability and workers' compensation, predetermined loss limits are arranged with our insurance company to limit both our per occurrence cash outlay and annual insurance plan cost. Our accounting for this plan is affected by various uncertainties, such as historical claims, pay-out experience, demographic factors, industry trends, severity factors, and other actuarial assumption calculated by a third party actuary. Evaluations of our accrued insurance claims estimate as of the balance sheet date are based primarily on current information derived from our actuarial valuation which assist in quantifying and valuing these trends. In the event that our claims experience and/or industry trends result in an unfavorable change resulting from, among other factors, the severity levels of reported claims and medical cost inflation, as compared to historical claim trends, it would have an adverse effect on our results of operations and financial condition. Under these plans, predetermined loss limits are arranged with an insurance company to limit both our per-occurrence cash outlay and annual insurance plan cost. For workers' compensation and general liability, we record a reserve for the estimated future cost of claims and related expenses that have been reported but not settled, including an estimate of claims incurred but not reported that are developed as a result of a review of our historical data and open claims, which is based on estimated provided by a third party actuary.

Accrued Insurance Claims

We currently have a Paid Loss Retrospective Insurance Plan for general liability and workers’ compensation insurance, which comprise approximately 35% of our liabilities at December 31, 2014. Under our insurance plans for general liability and workers' compensation, predetermined loss limits are arranged with our insurance company to limit both our per occurrence cash outlay and annual insurance plan cost. Our accounting for this plan is affected by various uncertainties, such as historical claims, pay-out experience, demographic factors, industry trends, severity factors, and other actuarial assumption calculated by a third party actuary. Evaluations of our accrued insurance claims estimate as of the balance sheet date are based primarily on current information derived from our actuarial valuation which assist in quantifying and valuing these trends. In the event that our claims experience and/or industry trends result in an unfavorable change resulting from, among other factors, the severity levels of reported claims and medical cost inflation, as compared to historical claim trends, it would have an adverse effect on our results of operations and financial condition. Under these plans, predetermined loss limits are arranged with an insurance company to limit both our per-occurrence cash outlay and annual insurance plan cost.

For workers' compensation and general liability, we record a reserve for the estimated future cost of claims and related expenses that have been reported but not settled, including an estimate of claims incurred but not reported that are developed as a result of a review of our historical data and open claims, which is based on estimated provided by a third party actuary.