Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

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Equity Method and Other Investments - General Information (Details) - USD ($) $ in Thousands		2 Months Ended	12 Months Ended
	Nov. 28, 2016	Nov. 28, 2016	Sep. 30, 2017	Sep. 30, 2016	Nov. 27, 2016
Schedule of Equity Method Investments [Line Items]
Equity in earnings of equity method investments			$ (453)	$ (1,065)
Gain on settlement of equity method investment			1,847
BioCision, LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest (as a percent)				20.00%	20.00%
Equity method investment	$ 1,200	$ 1,200		$ 1,700
Equity in earnings of equity method investments		$ (500)		$ (1,100)
Gain on settlement of equity method investment			$ 1,800
Cool Lab, LLC
Schedule of Equity Method Investments [Line Items]
Equity method investments, fair value disclosure	$ 3,100