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Significant Non-cash Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Acquisition date fair value of contingent consideration in connection with business combinations	$ 5,481	$ 3,400
Right-of-use assets obtained in exchange for operating lease obligations	6,820	11,251
Purchase consideration accrued for December 31, 2021 acquisition	$ 35,000	$ 0

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Noncash or Part Noncash Acquisition, Purchase Consideration Accrued

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The fair value of assets acquired in noncash investing or financing activities.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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