Segment Information (Details) (USD $) | 3 Months Ended | |
In Thousands, unless otherwise specified | Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013 |
| Segment |
| State |
Segment Information [Abstract] | ' | ' | ' |
Number of reportable segments | 3 | ' | ' |
Non Sprint-Nextel operations, number of states | 4 | ' | ' |
External revenues [Abstract] | ' | ' | ' |
Service revenues | $69,756 | $65,345 | ' |
Other revenues | 10,696 | 10,665 | ' |
Total external revenues | 80,452 | 76,010 | ' |
Internal revenues | 0 | 0 | ' |
Total operating revenues | 80,452 | 76,010 | ' |
Operating expenses [Abstract] | ' | ' | ' |
Cost of goods and services, exclusive of depreciation and amortization shown separately below | 32,236 | 30,700 | ' |
Selling, general and administrative, exclusive of depreciation and amortization shown separately below | 17,149 | 16,129 | ' |
Depreciation and amortization | 15,387 | 13,972 | ' |
Total operating expenses | 64,772 | 60,801 | ' |
Operating income (loss) | 15,680 | 15,209 | ' |
Reconciliation of income from continuing operations from segments to consolidated [Abstract] | ' | ' | ' |
Total consolidated operating income | 15,680 | 15,209 | ' |
Interest expense | -2,048 | -2,152 | ' |
Non-operating income (expense), net | 610 | 668 | ' |
Income before income taxes | 14,242 | 13,725 | ' |
Assets by segment [Abstract] | ' | ' | ' |
Assets | 596,595 | ' | 597,006 |
Wireless [Member] | ' | ' | ' |
External revenues [Abstract] | ' | ' | ' |
Service revenues | 47,232 | 44,065 | ' |
Other revenues | 2,756 | 3,019 | ' |
Total external revenues | 49,988 | 47,084 | ' |
Internal revenues | 1,091 | 1,073 | ' |
Total operating revenues | 51,079 | 48,157 | ' |
Operating expenses [Abstract] | ' | ' | ' |
Cost of goods and services, exclusive of depreciation and amortization shown separately below | 18,657 | 17,530 | ' |
Selling, general and administrative, exclusive of depreciation and amortization shown separately below | 8,432 | 7,887 | ' |
Depreciation and amortization | 7,196 | 6,028 | ' |
Total operating expenses | 34,285 | 31,445 | ' |
Operating income (loss) | 16,794 | 16,712 | ' |
Reconciliation of income from continuing operations from segments to consolidated [Abstract] | ' | ' | ' |
Total consolidated operating income | 16,794 | 16,712 | ' |
Assets by segment [Abstract] | ' | ' | ' |
Assets | 215,734 | ' | 229,038 |
Cable [Member] | ' | ' | ' |
External revenues [Abstract] | ' | ' | ' |
Service revenues | 17,424 | 16,163 | ' |
Other revenues | 3,030 | 2,301 | ' |
Total external revenues | 20,454 | 18,464 | ' |
Internal revenues | 26 | 49 | ' |
Total operating revenues | 20,480 | 18,513 | ' |
Operating expenses [Abstract] | ' | ' | ' |
Cost of goods and services, exclusive of depreciation and amortization shown separately below | 12,390 | 11,222 | ' |
Selling, general and administrative, exclusive of depreciation and amortization shown separately below | 4,646 | 4,425 | ' |
Depreciation and amortization | 5,404 | 5,205 | ' |
Total operating expenses | 22,440 | 20,852 | ' |
Operating income (loss) | -1,960 | -2,339 | ' |
Reconciliation of income from continuing operations from segments to consolidated [Abstract] | ' | ' | ' |
Total consolidated operating income | -1,960 | -2,339 | ' |
Assets by segment [Abstract] | ' | ' | ' |
Assets | 209,320 | ' | 199,184 |
Wireline [Member] | ' | ' | ' |
External revenues [Abstract] | ' | ' | ' |
Service revenues | 5,100 | 5,117 | ' |
Other revenues | 4,910 | 5,345 | ' |
Total external revenues | 10,010 | 10,462 | ' |
Internal revenues | 5,765 | 4,639 | ' |
Total operating revenues | 15,775 | 15,101 | ' |
Operating expenses [Abstract] | ' | ' | ' |
Cost of goods and services, exclusive of depreciation and amortization shown separately below | 7,482 | 7,166 | ' |
Selling, general and administrative, exclusive of depreciation and amortization shown separately below | 1,244 | 1,361 | ' |
Depreciation and amortization | 2,697 | 2,731 | ' |
Total operating expenses | 11,423 | 11,258 | ' |
Operating income (loss) | 4,352 | 3,843 | ' |
Reconciliation of income from continuing operations from segments to consolidated [Abstract] | ' | ' | ' |
Total consolidated operating income | 4,352 | 3,843 | ' |
Assets by segment [Abstract] | ' | ' | ' |
Assets | 87,777 | ' | 92,455 |
Other [Member] | ' | ' | ' |
External revenues [Abstract] | ' | ' | ' |
Service revenues | 0 | 0 | ' |
Other revenues | 0 | 0 | ' |
Total external revenues | 0 | 0 | ' |
Internal revenues | 0 | 0 | ' |
Total operating revenues | 0 | 0 | ' |
Operating expenses [Abstract] | ' | ' | ' |
Cost of goods and services, exclusive of depreciation and amortization shown separately below | 0 | 0 | ' |
Selling, general and administrative, exclusive of depreciation and amortization shown separately below | 3,416 | 2,999 | ' |
Depreciation and amortization | 90 | 8 | ' |
Total operating expenses | 3,506 | 3,007 | ' |
Operating income (loss) | -3,506 | -3,007 | ' |
Reconciliation of income from continuing operations from segments to consolidated [Abstract] | ' | ' | ' |
Total consolidated operating income | -3,506 | -3,007 | ' |
Assets by segment [Abstract] | ' | ' | ' |
Assets | 428,761 | ' | 435,804 |
Eliminations [Member] | ' | ' | ' |
External revenues [Abstract] | ' | ' | ' |
Service revenues | 0 | 0 | ' |
Other revenues | 0 | 0 | ' |
Total external revenues | 0 | 0 | ' |
Internal revenues | -6,882 | -5,761 | ' |
Total operating revenues | -6,882 | -5,761 | ' |
Operating expenses [Abstract] | ' | ' | ' |
Cost of goods and services, exclusive of depreciation and amortization shown separately below | -6,293 | -5,218 | ' |
Selling, general and administrative, exclusive of depreciation and amortization shown separately below | -589 | -543 | ' |
Depreciation and amortization | 0 | 0 | ' |
Total operating expenses | -6,882 | -5,761 | ' |
Operating income (loss) | 0 | 0 | ' |
Reconciliation of income from continuing operations from segments to consolidated [Abstract] | ' | ' | ' |
Total consolidated operating income | 0 | 0 | ' |
Assets by segment [Abstract] | ' | ' | ' |
Assets | -344,997 | ' | -359,475 |
Total Segments [Member] | ' | ' | ' |
Assets by segment [Abstract] | ' | ' | ' |
Assets | $941,592 | ' | $956,481 |