XML 86 R51.htm IDEA: XBRL DOCUMENT v2.4.0.8
Property And Equipment Property and Equipment Narrative (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Property, Plant and Equipment [Line Items]      
Depreciation $ 3,100,000 $ 4,800,000 $ 6,800,000
Impairment charges 100,000 300,000 500,000
Gain on sale of assets $ 0 $ 300,000 $ 1,400,000