Restructuring Long-Lived Assets Held for sale, at fair value (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Impaired Long-Lived Assets Held and Used [Line Items]
Disposal Group, Including Discontinued Operation, Long Lived Assets	$ 1,930	$ 0
Impairment of Long-Lived Assets Held-for-use	7,952	0
Fair Value, Inputs, Level 3 [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Long-lived assets held for sale (fair value)	$ 1,930	$ 0