Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2011

Property, Plant and Equipment [Abstract]

The major classes of property and equipment are as follows:



	Estimated Useful Lives	December 31,
	Estimated Useful Lives	2011			2010
Land owned in fee and perpetual easements	—	$	960,191		$	753,988
Buildings	40 years	37,454			37,165
Wireless infrastructure	1-20 years	7,329,889			7,242,887
Furniture, transportation, and other equipment	2-10 years	181,583			164,077
Construction in process	—	176,246			147,009
Total gross property and equipment		8,685,363			8,345,126
Less: accumulated depreciation		(3,824,136		)	(3,451,475		)
Total property and equipment, net		$	4,861,227		$	4,893,651

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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