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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Business Combinations - Additional Information (Detail) $ in Thousands, ₪ in Millions				1 Months Ended	12 Months Ended
	Apr. 30, 2020 USD ($)	Apr. 30, 2020 ILS (₪)	Jun. 03, 2019 USD ($)	Apr. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)
Contingent consideration liability	$ 8,068		$ 27,202	$ 8,068	$ 27,202
Goodwill					$ 114,186	$ 89,241	$ 54,637
Goodwill Tax Deductable Period					15 years
Acquisition-related Costs					$ 3,890	1,808
Amortization of identifiable assets					7,744	4,531	$ 3,433
Contingent Consideration					25,909	32,202
Foreign Currency Transaction Gain Loss Realized					845
Current portion of acquisition consideration					12,619
Milestone payable due in year two and three					13,290	32,202
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability					(6,293)
Financial Performance Targets [Member] \| Maximum [Member]
Potential milestone payment					50,000
Product Development Milestone One [Member]
Potential milestone payment					$ 10,000
Milestone measurement date					Sep. 30, 2020
Product Development Milestone Two [Member]
Potential milestone payment					$ 10,000
Milestone measurement date					Mar. 31, 2021
GenePOC Inc [Member]
Maximum Business Combination Consideration			120,000		$ 114,000
Assets acquired liabilities assumed net			77,526
Contingent consideration liability			27,202		20,909	$ 27,202
Cash payment to acquire business			50,000
Business Combination Closing Payment Holdback			5,000
Goodwill			$ 34,582
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability					(6,293)
GenePOC Inc [Member] \| Financial Performance Targets [Member] \| Maximum [Member]
Potential milestone payment					50,000
GenePOC Inc [Member] \| Product Development Milestone One [Member]
Potential milestone payment					4,000
GenePOC Inc [Member] \| Product Development Milestone Two [Member]
Potential milestone payment					10,000
Exalenz [Member]
Assets acquired liabilities assumed net	56,305			56,305	56,305
Cash payment to acquire business	48,237	₪ 168.6
Goodwill	24,466			24,466
Acquisition-related Costs					3,890
Amortization of identifiable assets					$ 1,120
Percentage of Voting Interest					100.00%
Business Combination Consideration Transferred	$ 56,305
Net Cash Outlay To Acquire Businesses				$ 47,392
Revenue Of Acquiree Since Acquisition					$ 4,206
Business Acquisition, Net Income (Loss)					$ 1,911