Acquisitions - Results of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Business Acquisition, Pro Forma Information [Abstract]
Amortization of acquired intangible assets	$ 35,200	$ 24,200	$ 17,100
Net loss attributable to noncontrolling interest		(111)
GENEWIZ
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	126,300
Actual net income (loss)	3,200
Amortization of acquired intangible assets	11,400
Tec-Sem Group AG
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	30,900	11,600
Actual net income (loss)	8,100	(1,200)
Inventory step up	200	700
Amortization of acquired intangible assets	2,700	2,100
4titude Limited
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	16,100	15,900
Actual net income (loss)	700	(800)
Inventory step up	1,200
Amortization of acquired intangible assets	3,700	4,100
PBMMI and Novare
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	11,900	11,500	3,400
Actual net income (loss)	700	800	800
Amortization of acquired intangible assets	1,100	1,600	300
Cool Lab, LLC
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	4,100	3,700
Actual net income (loss)	100	(200)	(300)
Inventory step up		400
Amortization of acquired intangible assets	$ 1,600	$ 1,600	$ 1,200