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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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 Measurements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Payment for contingent consideration			$ 0	$ 5,772
Goodwill	$ 341,645		341,645			$ 225,522
Fair Value, Inputs, Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration fair value	6,200		6,200	$ 8,000	$ 6,200	6,200	$ 10,000	$ 4,228
Contingent Consideration \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration fair value	0		0			0
Contingent Consideration \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration fair value	0		0			0
Contingent Consideration \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration fair value	6,200		6,200			6,200
Opengear \| Contingent Consideration
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Payment for contingent consideration	10,000
Estimate of Fair Value Measurement \| Contingent Consideration \| Fair Value, Measurements, Recurring
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Contingent consideration fair value	6,200		6,200			$ 6,200
Estimate of Fair Value Measurement \| Haxiot \| Contingent Consideration \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Payment for contingent consideration		$ 2,100
Contingent consideration fair value	$ 5,900		$ 5,900