Property and Equipment and Intangible Assets (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Intangible Assets
Intangible Assets	$ 67,446,000	$ 69,246,000
Accumulated Amortization	(31,598,000)	(24,238,000)
Amortization expense	11,000,000	13,000,000	8,000,000
Estimated future amortization of identifiable intangible assets
2014	9,202,000
2015	9,091,000
2016	8,469,000
2017	3,248,000
2018	1,362,000
Thereafter	4,476,000
Total	35,848,000
Wireless
Goodwill
Goodwill	126,000,000	126,000,000
Minimum
Intangible Assets
Useful life	1 year
Maximum
Intangible Assets
Useful life	10 years
Technology-based
Intangible Assets
Intangible Assets	34,078,000	38,066,000
Accumulated Amortization	(12,222,000)	(8,178,000)
Trademarks
Intangible Assets
Intangible Assets	20,424,000	18,236,000
Accumulated Amortization	(6,432,000)	(3,907,000)
Contract-based
Intangible Assets
Intangible Assets	8,650,000	8,650,000
Accumulated Amortization	(8,650,000)	(8,650,000)
Customer relationships
Intangible Assets
Intangible Assets	4,294,000	4,294,000
Accumulated Amortization	$ (4,294,000)	$ (3,503,000)