Impairment Charges (Details 1) (USD $) In Millions	Jun. 30, 2011
Impairment charges measured on a fair value on a non - recurring basis
Long lived assets held and used and held for sale fair value disclosure	$ 51.9
Fair value of assets measured on non recurring basis Losses	26.1
Level 1 [Member]
Impairment charges measured on a fair value on a non - recurring basis
Long lived assets held and used and held for sale fair value disclosure	0
Level 2 [Member]
Impairment charges measured on a fair value on a non - recurring basis
Long lived assets held and used and held for sale fair value disclosure	0
Level 3 [Member]
Impairment charges measured on a fair value on a non - recurring basis
Long lived assets held and used and held for sale fair value disclosure	$ 51.9