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Leases (Narratives) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Leases Disclosure [Abstract]        
Estimated Rental Expenses Current Year     $ 2.2  
Operating Leases, Rent Expense, Net $ 0.6 $ 0.4 $ 1.2 $ 0.8