Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]    
Letters of Credit Outstanding, Amount $ 1.8 $ 2.0