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Rental And Lease Information (Assets Recorded Under Capital Leases Table) (Details) - Machinery and Equipment [Member] - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Capital Leased Assets [Line Items]    
Machinery and equipment at cost $ 3,157 $ 638
Less accumulated amortization 450 181
Net capital lease assets $ 2,707 $ 457