Leases - Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Finance lease – lease asset amortization	$ 54	$ 69
Finance lease – interest on lease liabilities	22	23
Operating lease cost	5,139	5,264
Operating lease impairment expense	172	0
Short-term lease cost	242	125
Variable lease, cost	1,532	1,463
Sublease income	(184)	(258)
Total net lease cost	$ 6,977	$ 6,686

Amount of interest expense on finance lease liability.

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

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No definition available.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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- Definition

Amount of loss from impairment of right-of-use asset from operating lease.

+ References

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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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- Definition

Amount of sublease income excluding finance and operating lease expense.

+ References

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

+ References

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