Acquisitions (Details) (USD $)	3 Months Ended	12 Months Ended		12 Months Ended
Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 01, 2010 Suddenlink Communicaions [Member]	Dec. 31, 2010 JetBroadBand Holdings, LLC [Member]	Jul. 30, 2010 JetBroadBand Holdings, LLC [Member]
Business Acquisition [Line Items]
Purchase price												$ 4,500,000		$ 147,000,000
Operating revenues	$ 74,998,000	$ 72,876,000	$ 71,378,000	$ 68,823,000	$ 66,505,000	$ 62,657,000	$ 61,555,000	$ 60,428,000	$ 288,075,000	$ 251,145,000	$ 195,206,000		$ 18,900,000

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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