Acquisitions - Results of Operations (Details) - USD ($) $ in Thousands	8 Months Ended	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Business Acquisition, Pro Forma Information [Abstract]
Amortization of intangible assets		$ 41,800	$ 35,200	$ 24,200
Net loss attributable to noncontrolling interest				111
RURO, Inc.
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues	$ 3,800
Actual net income (loss)	600
Amortization of intangible assets	$ 600
RURO, Inc. | Selling, General and Administrative Expenses
Business Acquisition, Pro Forma Information [Abstract]
Acquisition related costs		300
GENEWIZ
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues		166,400	126,300
Actual net income (loss)		7,200	3,200
Amortization of intangible assets		20,300	11,400
Acquisition related costs		100	6,500	3,800
Tec-Sem Group AG
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues		25,300	30,900	11,600
Actual net income (loss)		7,300	8,100	(1,200)
Inventory step up			200	700
Amortization of intangible assets		1,700	2,700	2,100
Acquisition related costs				900
4titude Limited
Business Acquisition, Pro Forma Information [Abstract]
Actual revenues		21,700	16,100	15,900
Actual net income (loss)		3,900	700	(800)
Inventory step up				1,200
Amortization of intangible assets		$ 3,700	$ 3,700	4,100
Acquisition related costs				$ 1,100