Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

The major classes of property and equipment are as follows:



	Estimated Useful Lives	December 31,
	Estimated Useful Lives	2012			2011
Land owned in fee and perpetual easements	—	$	1,119,592		$	960,191
Buildings	40 years	56,883			37,454
Wireless infrastructure	1-20 years	9,589,282			7,359,480
Information technology assets and other	2-7 years	160,670			151,992
Construction in process	—	240,287			176,246
Total gross property and equipment		11,166,714			8,685,363
Less: accumulated depreciation		(4,249,183		)	(3,824,136		)
Total property and equipment, net		$	6,917,531		$	4,861,227

- 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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