Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Intangible Assets Narrative (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		3 Months Ended			12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014	Oct. 01, 2014	Apr. 30, 2014
Goodwill [Line Items]
Goodwill, Period Increase (Decrease)	$ 8,763us-gaap_GoodwillPeriodIncreaseDecrease
Goodwill	118,264us-gaap_Goodwill		118,264us-gaap_Goodwill				109,501us-gaap_Goodwill
Impairment of intangible assets	0us-gaap_AssetImpairmentCharges	398us-gaap_AssetImpairmentCharges
FluidX [Member]
Goodwill [Line Items]
Goodwill								8,247
Dynamic Micro Systems
Goodwill [Line Items]
Goodwill, Period Increase (Decrease)			300	300
Goodwill									11,939
Celigo Cell Cytometer Product Line
Goodwill [Line Items]
Impairment of intangible assets					$ 400	$ 2,000