Annual report pursuant to Section 13 and 15(d)

Goodwill And Other Intangible Assets (Schedule Of Goodwill) (Details)

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Goodwill And Other Intangible Assets (Schedule Of Goodwill) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2015
Goodwill [Line Items]    
Beginning Balance  
Increase due to acquisitions 17,745  
Decrease due to impairment   $ (29,507)
Ending Balance 17,745
Black Diamond [Member]    
Goodwill [Line Items]    
Beginning Balance  
Increase due to acquisitions  
Ending Balance
Sierra [Member]    
Goodwill [Line Items]    
Beginning Balance  
Increase due to acquisitions 17,745  
Ending Balance $ 17,745