Acquisition of NTELOS Holdings Corp. and Exchange with Sprint - Intangible Assets Resulting from Acquisition (Details) - Ntelos Holding, Corp [Member] - USD ($) $ in Thousands		3 Months Ended
	May 06, 2016	Sep. 30, 2016
Affiliate Contract Agreement [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract]
Affiliate contract agreement	14 years	14 years
Basis	$ 284,100
Additional Customer Based Contract Rights [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract]
Basis	$ 120,855
Additional Customer Based Contract Rights [Member] | Minimum [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract]
Affiliate contract agreement	4 years
Additional Customer Based Contract Rights [Member] | Maximum [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract]
Affiliate contract agreement	10 years
Favorable leases - wireless [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract]
Basis	$ 17,029
Favorable leases - wireless [Member] | Minimum [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract]
Affiliate contract agreement	3 years
Favorable leases - wireless [Member] | Maximum [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill [Abstract]
Affiliate contract agreement	19 years