Assets Held For Sale Assets Held for Sale (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Dec. 31, 2011
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-sale, Long Lived	$ 3,843	$ 3,843	$ 6,074
Proceeds from Sale of Property, Plant, and Equipment	247	33,486
Gain (Loss) on Disposition of Property	$ (26)	$ 30,738