ÐÇ¿Õ´«Ã½

Quarterly report pursuant to Section 13 or 15(d)

Goodwill And Other Intangible Assets And Liabilities (Estimated Useful Lives Of Intangible Assets Subject To Periodic Amortization On A Straight-Line Basis) (Details)

v2.3.0.15
Goodwill And Other Intangible Assets And Liabilities (Estimated Useful Lives Of Intangible Assets Subject To Periodic Amortization On A Straight-Line Basis) (Details)
9 Months Ended
Sep. 30, 2011
years
Use Rights [Member]
Ìý
Useful Life, Minimum (years) 15
Useful Life, Maximum (years) 28
Utility Contracts [Member]
Ìý
Useful Life (years) 5
Easements [Member]
Ìý
Useful Life (years) 30
Lease Agreements [Member]
Ìý
Useful Life, Minimum (years) 1.5
Useful Life, Maximum (years) 4.5