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Fair Value Measurements (Summary of Assets Measured at Fair Value on a Non-Recurring Basis) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jul. 01, 2016	Jul. 01, 2016
Goodwill, Losses incured	$ 6,197	$ 6,197
Diving [Member]
Goodwill, Losses incured		6,197
Level 3 [Member] | Diving [Member]
Goodwill, Losses incured		$ 6,197

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- Definition

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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