Commitments and Contingencies (Details) (USD $)			9 Months Ended
	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2011 Wholesale Agreement With Sprint [Member]
Loss Contingencies [Line Items]
Extension Periods of Agreement (years)			1
Advance Notice Required For Contract Termination (days)			180
Initial Term of Agreement (years)			5
Total Minimum Revenue Under Agreement			$ 300,000,000
Amount of Service Revenue Which Can be Credited Against Minimum Revenue Requirement			100,000,000
Total Minimum Revenue Under Agreement in 2011			20,000,000
Total Minimum Revenue Under Agreement in 2012			75,000,000
Total Minimum Revenue Under Agreement in 2013			80,000,000
Total Minimum Revenue Under Agreement in 2014			75,000,000
Total Minimum Revenue Under Agreement in 2015			50,000,000
Minimum Revenues of Service Provider in Change of Control Transaction			500,000,000
Percentage of Minimum Revenue Requirement to be Paid After Change of Control in 2011			40.00%
Percentage of Minimum Revenue Requirement to be Paid After Change of Control in 2012			30.00%
Percentage of Minimum Revenue Requirement to be Paid After Change of Control in 2013			20.00%
Percentage of Minimum Revenue Requirement to be Paid After Change of Control in 2014			10.00%
Percentage of Minimum Revenue Requirement to be Paid After Change of Control in 2015			10.00%
Time Period for Contract Termination With Metro PCS (days)			60
Total Minimum Revenue Upon Change of Control With Metro PCS			350,000,000
Purchase Commitment, Remaining Minimum Amount Committed	$ 278,600,000	$ 218,200,000