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Subsequent Events (Details Textual) (USD $) In Thousands, except Share data in Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended | 0 Months Ended | 1 Months Ended |
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Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jul. 25, 2014 Subsequent Events | Jul. 31, 2014 Subsequent Events | Jul. 31, 2014 Subsequent Events One-time Cash Payment | Jul. 31, 2014 Subsequent Events First Extension Option | Jul. 31, 2014 Subsequent Events Second Extension Option | Jul. 25, 2014 Comcast Subsequent Events | Jul. 25, 2014 Migration of Comcast Current Residential Customer Accounts Subsequent Events | Jul. 25, 2014 Migration of Comcast Acquired Additional Residential Customer Accounts Subsequent Events
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Restructuring charges | $ 39 | $ (38) | $ 1,257 | $ 863 |  |  | $ 8,000 |  |  |  |  |
Comcast amendment agreement effective date |  |  |  |  |  | Jul. 01, 2014 |  |  |  |  |  |
Comcast amendment agreement initial term |  |  |  |  |  | 5 years |  |  |  |  |  |
Comcast amendment agreement date of extend option |  |  |  |  |  |  |  | Jan. 01, 2019 | Jan. 01, 2020 |  |  |
Issuance of stock warrants |  |  |  |  |  |  |  |  |  | 2.9 | 1.9 | 1.0
Stock warrants term |  |  |  |  | 10 years |  |  |  |  |  |  |
Stock warrants, exercise price |  |  |  |  | $ 26.68 |  |  |  |  |  |  |

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- Definition Exercise price of the warrants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column A + Details
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