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Employee Benefit Plans (Narrative) (Details)
$ in Millions
3 Months Ended
Mar. 31, 2016
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
Annual benefits paid to retired participants $ 0.3
Pension Benefit Plan [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Benfit plan, cash contributions 0.5
Expected cash contributions 2.8
Other Benefits Plan [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Benfit plan, cash contributions 0.2
Expected cash contributions $ 1.3