Segments Our reportable segments are business units that offer different products and are each managed separately. A description of our reportable segments follows: Wireless - We offer wholesale wireless services. Wireline - We offer a full range of retail wireless, data, video and voice services to residential, local, national and global businesses, governmental entities and public and private educational institutions; wholesale data and voice services to common carrier customers; Internet, data network and managed services to rural schools and health organizations and regulated voice services to residential and commercial customers in rural communities primarily in Southwest Alaska. We evaluate performance and allocate resources based on earnings before depreciation and amortization expense, net interest expense, income taxes, share-based compensation expense, accretion expense, income or loss attributable to non-controlling interest resulting from New Markets Tax Credit ("NMTC") transactions, non-cash contribution adjustment, and other non-cash adjustments ( Adjusted EBITDA ). Management believes that this measure is useful to investors and other users of our financial information in evaluating operating profitability as an analytical indicator of income generated to service debt and fund capital expenditures. In addition, multiples of current or projected earnings before depreciation and amortization, net interest expense, and income taxes ( EBITDA ) are used to estimate current or prospective enterprise value. The accounting policies of the reportable segments are the same as those described in Note 1,  Business and Summary of Significant Accounting Policies  of this Form 10-Q. We have no intersegment sales. We earn all revenues through sales of services and products within the United States. All of our long-lived assets are located within the United States of America, except approximately 82% of our undersea fiber optic cable systems which transit international waters and all of our satellite transponders.