Leases - Additional Information (Details) - USD ($)	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Leases [Line Items]
Lessee operating lease, discount rate	5.00%
Right-of-use asset, operating lease costs	$ 38,000
Short-term lease costs	76,000
Rental revenue	16,615,000	$ 7,416,000
Future minimum leases payments to be received	3,200,000
Lease deposits	$ 700,000
Maximum
Leases [Line Items]
Lease term	6 months