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Balance Sheet Details - Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Balance Sheet Details [Abstract]
Intangible assets	$ 224,523	$ 237,178
Unbilled receivables	176,880	158,885
Capitalized contract acquisition costs	42,954	43,571
Other	38,448	32,924
Other Assets, Noncurrent	$ 482,805	$ 472,558

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Balance Sheet Details [Abstract]

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as noncurrent.

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-Topic 606
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.

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Amount of noncurrent assets classified as other.

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