The Company, through its health insurance and managed care subsidiaries, primarily serve the growing Medicare population by providing Medicare Advantage and Medicare supplement insurance products. Approximately 30% of the Medicare population in the United States is currently enrolled in Medicare Advantage plans and its current focus is to grow its Medicare Advantage business, particularly in its Texas, Oklahoma and Northeast markets. In addition, the company assumes that there is an opportunity to address the high cost of health care for the remaining 70% of the Medicare population enrolled in traditional fee-for-service Medicare and has joined with primary-care provider groups in several applications to participate in the Medicare Shared Savings Program through Accountable Care Organizations, or ACO's. Its operating segments includes: (i) Senior Managed Care - Medicare Advantage segment reflects its Medicare Advantage HMO, PPO and PFFS businesses. (ii) Traditional Insurance segment reflects its insurance products not offered through government programs, which includes Medicare supplement, other senior health insurance, specialty health insurance and life insurance. The Company competes with numerous other health insurance companies on a national, regional and local market basis, including United Healthcare, Humana and Cigna. Each of its insurance company subsidiaries and its HMO subsidiaries is also subject to the regulations of and supervision by the insurance department of each of the jurisdictions in which they are admitted and authorized to transact business.