Goodwill and Intangible Assets - Summary of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Sep. 30, 2021	Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Balance, beginning	$ 1,772,043
Addition related to acquisition during the period	585,448	$ 1,772,043
Measurement period adjustments	(2,679)
Balance, ending	$ 2,354,812	$ 1,772,043

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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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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