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Assets Held for Sale and Discontinued Operations Assets Held for Sale and Discontinued Operations (Assets held for sale and discontinued operations) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Discontinued Operations and Disposal Groups [Abstract]      
Revenues $ 3,280 $ 6,526 $ 7,099
Operating income 631 1,875 1,340
Impairment (100) (1,100) 0
Gain on disposition 6,091 610 0
Provision for income taxes 2,511 550 572
Income from discontinued operations $ 4,111 $ 835 $ 768