Leases - Additional Information (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)
Lessee Lease Description [Line Items]
Operating lease, existence of option to extend		true
Operating lease, option to extend		Some of our leases include options to extend or terminate the lease prior to the end of the agreed upon lease term. For purposes of calculating lease liabilities, lease terms include options to extend or terminate the lease when it is reasonably certain that we will exercise such options.
Operating lease, existence of option to terminate		true
Operating lease, option to terminate		Some of our leases include options to extend or terminate the lease prior to the end of the agreed upon lease term. For purposes of calculating lease liabilities, lease terms include options to extend or terminate the lease when it is reasonably certain that we will exercise such options.
Undiscounted future minimum lease payments under non-cancelable, term		1 year
Cash payments related to operating leases	$ 1,900	$ 3,600
Cash payments related to financing leases		$ 67
Minimum
Lessee Lease Description [Line Items]
Operating lease remaining term	1 year	1 year
Maximum
Lessee Lease Description [Line Items]
Operating lease remaining term	8 years	8 years