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Property, Plant and Equipment (Narrative) (Details) - Envelope [Member] - Land, buildings and improvements [Member]
$ in Millions
3 Months Ended
Jun. 30, 2016
USD ($)
facility
Oct. 01, 2016
USD ($)
Property, Plant and Equipment [Line Items]    
Number of manufacturing facilities sold (facility) | facility 1  
Sale leaseback transaction, net proceeds $ 7.9  
Sale leaseback, lease period (years) 5 years  
Sale leaseback transaction, gain recognized   $ 2.1
Sale leaseback, deferred gain   $ 2.8