The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The effective interest rate at the end of the reporting period.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Period Type:	instant

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

No definition available.

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Debt and Other Borrowings (Details) - USD ($)	Dec. 23, 2022	Mar. 25, 2022	Sep. 30, 2020	Nov. 26, 2019	Nov. 20, 2019
Term Loan Facility \| Line of Credit
Line of Credit Facility [Line Items]
Outstanding balance	$ 25,000,000	$ 25,000,000
Term Loan Facility \| Credit Suisse AG, Cayman Islands Branch
Line of Credit Facility [Line Items]
Maximum borrowing capacity			$ 325,000,000
Senior Secured Revolving Credit Facility \| Mizuho Bank, Ltd
Line of Credit Facility [Line Items]
Maximum borrowing capacity			$ 50,000,000
Interest rate at period end	7.82%
Unamortized deferred financing costs	$ 74,000	149,000
Unsecured Revolving Credit Facilities \| Line-of-Credit Agreement Expiring August 31, 2023 \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	1,088,000	0		$ 60,000,000
Outstanding balance	0
Unsecured Revolving Credit Facilities \| Line-Of-Credit Agreement Expiring June 30, 2023 \| Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	1,360,000				$ 75,000,000
Outstanding balance	$ 0	$ 0