Quarterly report pursuant to Section 13 or 15(d)

Industry Segments Data (Reportable segment revenues) (Details)

v2.4.0.6
Industry Segments Data (Reportable segment revenues) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Segment Reporting Information [Line Items]        
Intersegment $ 1,153 $ 1,386 $ 4,583 $ 4,324
External revenues 178,494 177,703 526,505 510,569
Total Revenues 179,647 179,089 531,088 514,893
Adjusted EBITDA 59,449 63,101 173,699 171,380
Consumer [Member]
        
Segment Reporting Information [Line Items]        
Intersegment (356) 0 0 0
External revenues 86,807 89,267 263,114 266,238
Total Revenues 86,451 89,267 263,114 266,238
Adjusted EBITDA 20,916 30,373 69,718 87,024
Network Access [Member]
        
Segment Reporting Information [Line Items]        
Intersegment 45 0 210 0
External revenues 27,475 29,467 78,680 79,715
Total Revenues 27,520 29,467 78,890 79,715
Adjusted EBITDA 15,383 13,729 41,235 37,953
Commercial [Member]
        
Segment Reporting Information [Line Items]        
Intersegment 1,417 1,382 4,228 4,207
External revenues 36,208 35,572 105,015 101,617
Total Revenues 37,625 36,954 109,243 105,824
Adjusted EBITDA 9,892 9,117 26,958 23,180
Managed Broadband [Member]
        
Segment Reporting Information [Line Items]        
Intersegment 0 0 0 0
External revenues 22,685 17,407 63,431 46,041
Total Revenues 22,685 17,407 63,431 46,041
Adjusted EBITDA 12,249 8,844 32,561 20,264
Regulated Operations [Member]
        
Segment Reporting Information [Line Items]        
Intersegment 47 4 145 117
External revenues 5,319 5,990 16,265 16,958
Total Revenues 5,366 5,994 16,410 17,075
Adjusted EBITDA $ 1,009 $ 1,038 $ 3,227 $ 2,959