Acquisitions (Details Textual) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Jun. 30, 2012	Feb. 09, 2012
Acquisitions (Textual) [Abstract]
Portion of goodwill deductible for tax purposes	$ 0
KIESTRA Lab Automation BV [Member]
Acquisitions (Textual) [Abstract]
Percentage of outstanding shares acquired		100.00%
Fair value of consideration transferred in cash		50,891
Acquisition-date fair value of consideration transferred net of in cash acquired	59,457	59,457
Fair value of the contingent consideration		8,566
Cash acquired in acquisition		5,176
Risk-adjusted discount rate	14.50%
Amortization of technology, expected useful life	10 years
Technological and commercial risk	100.00%
Risk-adjusted discount rate used to determine fair value of in-process research and development assets acquired	15.50%
Core and developed technology	12,581
Acquired in-process research and development	7,416
Goodwill	33,520
Acquisition related costs in the current period	$ 2,500

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Business combination recognized identifiable assets acquired and liabilities assumed developed technology.

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Risk-adjusted discount rate used to determine fair value of core and developed technology acquired.

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Risk-adjusted discount rate used to determine fair value of in-process research and development assets acquired.

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The probability of success, based upon the applicable technological and commercial risk, assumed relative to in-process research and development assets acquired.

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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Amount of cash paid to acquire the entity.

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Percentage of voting equity interests acquired in the business combination.

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The amount of cash and cash equivalents acquired in a business combination.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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The amount of acquisition cost of a business combination allocated to an identifiable intangible asset that will not be amortized. Does not include goodwill.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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This element represents the acquisition-date fair value of the total consideration transferred which consists of the sum of the acquisition-date fair values of the assets transferred by the acquirer, the liabilities incurred by the acquirer to former owners of the acquiree, and the equity interests issued by the acquirer.

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