Restructuring Long-Lived Assets Held for sale and Long-Lived Assets Held and Used (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Impaired Long-Lived Assets Held and Used [Line Items]
Long-lived assets held for sale (net carrying value)	$ 3,184	$ 898
Long-lived assets held for sale (total loss recognized)	2	13,151
Long-Lived Assets Held and Used		8,558
Long-lived assets held and used (total loss recognized)		7,754
Total Loss Recognized		20,905
Fair Value, Inputs, Level 3 [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Long-lived assets held for sale (fair value)	3,184	898
Long-Lived Assets Held and Used		$ 8,558