Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended
	Dec. 31, 2020 USD ($)
Commitments and Contingencies [Line Items]
Purchase obligation	$ 4.7
Minimum
Commitments and Contingencies [Line Items]
Severance payment term	12 months
Maximum
Commitments and Contingencies [Line Items]
Severance payment term	36 months