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Goodwill (Narrative) (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Jul. 01, 2016
USD ($)
Jul. 01, 2016
USD ($)
Goodwill and other intangible assets impairment $ 6,197 $ 6,197
Diving [Member]    
Goodwill and other intangible assets impairment   6,197
Goodwill and intangible assets, carrying value $ 0 $ 0