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Fair Value Measurement - Narrative (Details) - USD ($)		3 Months Ended
	Nov. 01, 2021	Dec. 31, 2021	Sep. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		$ 40,000,000	$ 40,000,000
Recurring basis | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Earn-out from business acquisition		26,900,000
Recurring basis | Bid4Assets | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Earn-out from business acquisition	$ 26,900,000
Recurring basis | Bid4Assets | Fair Value, Inputs, Level 3 | Accrued Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Earn-out from business acquisition	14,500,000
Recurring basis | Bid4Assets | Fair Value, Inputs, Level 3 | Other Current Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Earn-out from business acquisition	$ 12,400,000
Fair Value, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, net asset (liability)		$ 0	$ 0

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- Definition

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Contingent Consideration

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No definition available.

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- Definition

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- Definition

Fair value of asset after deduction of liability.

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- Definition

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