Significant Contractual Relationship (Details)			12 Months Ended
	Jan. 01, 2016	Aug. 01, 2013	Dec. 31, 2016	Dec. 31, 2012 megahertz	Dec. 31, 1999 renewal
Significant Contractual Relationship [Abstract]
Initial term of contract					20 years
Number of contract renewals | renewal					3
Length of renewals					10 years
Right or obligation to sell business, percentage of EBV					90.00%
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Additional term of contract				5 years
Expected future net service fee	8.60%	14.00%
Management fee on post paid services			8.00%
Maximum [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Megahertz spectrum used				1,900
Additional term of contract				45 years
Minimum [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Megahertz spectrum used				800