Basis of Presentation and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Depreciable Lives for Property and Equipment

The following table summarizes the depreciable lives for property and equipment (in years):

	Depreciable Life
Network equipment:
Switches	5-10
Switch power equipment	15
Cell site equipment and site improvements	5-7
Towers	15
Antennae	5
Computer hardware and software	3-5
Furniture, fixtures retail and office equipment	3-7

Summary of Asset Retirement Obligations

The following table summarizes the Company's asset retirement obligations as of and for the years ended December 31, 2013 and 2012 (in thousands):

	Year Ended December 31,
	2013			2012
Asset retirement obligations, beginning of year	$	36,230		$	32,919
Liabilities incurred	118			815
Accretion expense	3,356			3,208
Decommissioned sites	(320		)	(712		)
Other	(3,155		)	—
Asset retirement obligations, end of year	$	36,229		$	36,230