

4.	Deposits

The contractual arrangement with United for health insurance coverage requires us to maintain an accumulated cash surplus in the plan of $9.0 million, which is reported as long-term prepaid health insurance. Please read Note 1, “Accounting Policies,” for a discussion of our accounting policies for health insurance costs.

As of December 31, 2015, we had $3.7 million in health insurance long-term deposits. Please read Note 1, “Accounting Policies,” for a discussion of our accounting policies for health insurance costs.

As of December 31, 2015, we had $136.5 million in workers’ compensation long-term deposits. Please read Note 1, “Accounting Policies,” for a discussion of our accounting policies for workers’ compensation costs.