Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Details Textual)

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Intangible Assets (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Intangible Assets (Textual) [Abstract]      
Amortization expense for intangibles $ 2.3 $ 0.5 $ 0.6
Identifiable asset with an indefinite life 0.5    
Impairment charge of indefinite-lived intangible 0   0
Trade Names [Member]
     
Intangible Assets (Textual) [Abstract]      
Impairment charge of indefinite-lived intangible $ 0 $ 0.1 $ 0