Business and Summary of Significant Accounting Principles Business and Summary of Significant Accounting Principles (Wireless Acquisition) (Details) - USD ($) $ in Thousands		12 Months Ended
	Feb. 02, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Noncontrolling Interest [Line Items]
Total consideration transfered to ACS	$ 304,838
Non-controlling interest acquisitions	303,831
Property and equipment	746	$ 176,235	$ 176,109	$ 180,554
Other intangible assets	261
Non-controlling interest acquisition		281,803
Increase in Deferred Tax Assets	24,028
Non-controlling Interests
Noncontrolling Interest [Line Items]
Non-controlling interest acquisition	268,364	271,521
Paid-in Capital
Noncontrolling Interest [Line Items]
Non-controlling interest acquisition	$ 11,439	$ 10,282