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Commitments and Contingent Liabilities (Schedule of Product Warranty Liability) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2015
USD ($)
Commitments and Contingent Liabilities [Abstract]  
Balance, Beginning $ 11,500
Additions to warranty liability 529
Warranty liability utilized (3,032)
Warranty liabilities acquired 53
Balance, Ending $ 9,050