Fair Value Measurements - Additional Information (Detail) - USD ($)	9 Months Ended	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Sep. 30, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Payment for contingent consideration liability, operating activities	$ 608,000	$ 2,041,000
Payment for contingent consideration liability, financing activities	2,592,000	9,064,000
Transfers in or out Level 3, Assets	0		$ 0
Transfers in or out Level 3, Liabilities	0		0
Transfers out of Level 1 to Level 2, Assets	0		0
Transfers into Level 1 out of Level 2, Assets	0		0
Transfers out of Level 1 to Level 2, Liabilities	0		0
Transfers into Level 1 out of Level 2, Liabilities	0		$ 0
NorMedix [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration liability	3,200,000	11,000,000.0
Payment for contingent consideration liability, operating activities	600,000	2,000,000.0
Payment for contingent consideration liability, financing activities	$ 2,600,000	$ 9,000,000.0

Amount of liability recognized arising from contingent consideration in a business combination.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 25
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-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Section 50
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Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2.

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Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.

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Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

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Amount of transfers of financial instrument classified as a liability into (out of) level 3 of the fair value hierarchy.

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Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability exceeding amount recognized at acquisition date. Includes, but is not limited to, measurement period adjustment and less amount paid soon after acquisition date.

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