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Leases - Supplemental Balance Sheet Information Schedule (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Sep. 30, 2021
--- | --- | ---
Assets: |  |
Property, plant and equipment, net | $ 20 | $ 34
Operating lease right-of-use assets, net | 15,477 | 15,943
Total lease assets | 15,497 | 15,977
Current liabilities: |  |
Current maturities of long-term debt | 10 | 17
Short-term operating lease liabilities | 773 | 788
Non-current liabilities: |  |
Long-term debt, net of current maturities | 0 | 5
Long-term operating lease liabilities, net of short-term | 15,050 | 15,439
Total lease liabilities | $ 15,833 | $ 16,249
Finance lease, asset, statement of financial position [Extensible List] | Property, plant and equipment, net | Property, plant and equipment, net
Current finance lease, liability, statement of financial position [Extensible List] | Current maturities of long-term debt | Current maturities of long-term debt
Noncurrent finance lease, liability, statement of financial position [Extensible List] | Total long-term debt | Total long-term debt

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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