Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013 State	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013 Segment State	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting [Abstract]
Number of reportable segments									3
Non Sprint operations, number of states	4								4
External revenues [Abstract]
Service revenues									$ 268,990	$ 243,943	$ 210,597
Other revenues									39,952	44,132	40,548
Total external revenues									308,942	288,075	251,145
Internal revenues									0	0	0
Total operating revenues	77,965	77,513	77,454	76,010	74,998	72,876	71,378	68,823	308,942	288,075	251,145
Operating expenses [Abstract]
Cost of goods and services, exclusive of depreciation and amortization shown separately below									125,140	117,407	106,640
Goodwill impairment									0	10,952	0
Selling, general and administrative, exclusive of depreciation and amortization shown separately below									67,673	60,646	56,445
Depreciation and amortization									60,722	64,412	55,770
Total operating expenses									253,535	253,417	218,855
Operating income (loss)	12,436	13,262	14,500	15,209	9,297	5,407	11,137	8,817	55,407	34,658	32,290
Reconciliation of income from continuing operations from segments to consolidated [Abstract]
Total consolidated operating income	12,436	13,262	14,500	15,209	9,297	5,407	11,137	8,817	55,407	34,658	32,290
Interest expense									(8,468)	(7,850)	(8,289)
Non-operating income, net									2,525	1,803	204
Income from continuing operations before income taxes									49,464	28,611	24,205
Assets by segment [Abstract]
Assets	597,006				570,740				597,006	570,740
Wireless [Member]
External revenues [Abstract]
Service revenues									182,955	162,912	137,118
Other revenues									10,842	13,398	13,129
Total external revenues									193,797	176,310	150,247
Internal revenues									4,328	3,328	3,191
Total operating revenues									198,125	179,638	153,438
Operating expenses [Abstract]
Cost of goods and services, exclusive of depreciation and amortization shown separately below									72,995	63,906	56,705
Goodwill impairment										0
Selling, general and administrative, exclusive of depreciation and amortization shown separately below									36,828	30,716	29,455
Depreciation and amortization									28,177	31,660	23,906
Total operating expenses									138,000	126,282	110,066
Operating income (loss)									60,125	53,356	43,372
Reconciliation of income from continuing operations from segments to consolidated [Abstract]
Total consolidated operating income									60,125	53,356	43,372
Assets by segment [Abstract]
Assets	229,038				179,929				229,038	179,929
Cable [Member]
External revenues [Abstract]
Service revenues									70,529	66,010	59,051
Other revenues									10,771	10,024	8,733
Total external revenues									81,300	76,034	67,784
Internal revenues									123	289	276
Total operating revenues									81,423	76,323	68,060
Operating expenses [Abstract]
Cost of goods and services, exclusive of depreciation and amortization shown separately below									50,151	48,978	47,417
Goodwill impairment										10,952
Selling, general and administrative, exclusive of depreciation and amortization shown separately below									23,189	22,335	18,827
Depreciation and amortization									22,663	23,519	23,198
Total operating expenses									96,003	105,784	89,442
Operating income (loss)									(14,580)	(29,461)	(21,382)
Reconciliation of income from continuing operations from segments to consolidated [Abstract]
Total consolidated operating income									(14,580)	(29,461)	(21,382)
Assets by segment [Abstract]
Assets	199,184				202,436				199,184	202,436
Wireline [Member]
External revenues [Abstract]
Service revenues									15,506	15,021	14,428
Other revenues									18,339	20,710	18,686
Total external revenues									33,845	35,731	33,114
Internal revenues									20,074	18,927	16,414
Total operating revenues									53,919	54,658	49,528
Operating expenses [Abstract]
Cost of goods and services, exclusive of depreciation and amortization shown separately below									24,219	24,785	19,702
Goodwill impairment										0
Selling, general and administrative, exclusive of depreciation and amortization shown separately below									6,950	6,859	7,528
Depreciation and amortization									9,848	9,171	8,453
Total operating expenses									41,017	40,815	35,683
Operating income (loss)									12,902	13,843	13,845
Reconciliation of income from continuing operations from segments to consolidated [Abstract]
Total consolidated operating income									12,902	13,843	13,845
Assets by segment [Abstract]
Assets	92,455				88,776				92,455	88,776
Other [Member]
External revenues [Abstract]
Service revenues									0	0	0
Other revenues									0	0	0
Total external revenues									0	0	0
Internal revenues									0	0	0
Total operating revenues									0	0	0
Operating expenses [Abstract]
Cost of goods and services, exclusive of depreciation and amortization shown separately below									0	25	125
Goodwill impairment										0
Selling, general and administrative, exclusive of depreciation and amortization shown separately below									3,006	2,993	3,207
Depreciation and amortization									34	62	213
Total operating expenses									3,040	3,080	3,545
Operating income (loss)									(3,040)	(3,080)	(3,545)
Reconciliation of income from continuing operations from segments to consolidated [Abstract]
Total consolidated operating income									(3,040)	(3,080)	(3,545)
Assets by segment [Abstract]
Assets	435,804				458,650				435,804	458,650
Eliminations [Member]
External revenues [Abstract]
Service revenues									0	0	0
Other revenues									0	0	0
Total external revenues									0	0	0
Internal revenues									(24,525)	(22,544)	(19,881)
Total operating revenues									(24,525)	(22,544)	(19,881)
Operating expenses [Abstract]
Cost of goods and services, exclusive of depreciation and amortization shown separately below									(22,225)	(20,287)	(17,309)
Goodwill impairment										0
Selling, general and administrative, exclusive of depreciation and amortization shown separately below									(2,300)	(2,257)	(2,572)
Depreciation and amortization									0	0	0
Total operating expenses									(24,525)	(22,544)	(19,881)
Operating income (loss)									0	0	0
Reconciliation of income from continuing operations from segments to consolidated [Abstract]
Total consolidated operating income									0	0	0
Assets by segment [Abstract]
Assets	(359,475)				(359,051)				(359,475)	(359,051)
Total Segments [Member]
Assets by segment [Abstract]
Assets	$ 956,481				$ 929,791				$ 956,481	$ 929,791