Acquisitions - Results of Operations (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Business Acquisition, Pro Forma Information [Abstract]
Amortization of acquired intangible assets	$ 7.8	$ 5.5
GENEWIZ
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	16.4
Actual net income (loss)	0.9
Amortization of acquired intangible assets	1.6
Tec-Sem Group AG
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	9.3
Actual net income (loss)	1.7
Inventory step up	0.2
Amortization of acquired intangible assets	0.9
4titude Limited
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	3.9	3.4
Actual net income (loss)		(1.1)
Inventory step up	1.2
Amortization of acquired intangible assets	0.9	$ 1.0
4titude Limited \| Maximum
Business Acquisition, Pro Forma Information [Abstract]
Actual net income (loss)	$ 0.1

Inventory Step Up

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-Name Accounting Standards Codification
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- References

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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

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