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Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021	Jul. 06, 2021	Mar. 26, 2021
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Change in fair value of contingent consideration					$ 0	$ (6,200)	$ 5,772
Goodwill	$ 341,593	$ 340,477			341,593	340,477	225,522
Total liabilities measured at fair value	0	0			0	0
Total assets measured at fair value	0	0			0	0
Fair Value, Inputs, Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration fair value	0	0			0	$ 0	$ 6,200
Opengear | Contingent consideration on acquired business
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Change in fair value of contingent consideration			$ 900	$ 10,000
Haxiot
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Change in fair value of contingent consideration	(5,900)
Goodwill									$ 8,605
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability	0				0				$ 5,900
Ctek
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Change in fair value of contingent consideration		$ (300)
Goodwill								$ 4,867
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Contingent Liability	$ 0				$ 0			$ 300

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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The amount of liability arising from an inherited contingency (as defined) which has been recognized as of the acquisition date.

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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Fair value of financial and nonfinancial obligations.

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