Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

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

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of increase (decrease) of the credit facility.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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Period Type:	duration

- 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.

+ Details

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Balance Type:	debit
Period Type:	instant

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Long-term Debt and Line of Credit (Details) - USD ($) $ in Thousands		3 Months Ended
	Aug. 09, 2022	Dec. 31, 2022	Sep. 30, 2022
Long-term Debt and Line of Credit [Abstract]
Long-term debt, gross		$ 472,768	$ 452,355
Less current portion (net of debt issuance costs)		(29,247)	(21,642)
Less unamortized portion of debt issuance costs		(8,851)	(9,551)
Long-term debt, net of current portion and unamortized debt issuance costs		$ 434,670	$ 421,162
A&R Term Loan [Member]
Long-term Debt and Line of Credit [Abstract]
Aggregate principal amount	$ 445,000
Term Note Payable to Truist Bank, Secured and Bearing Interest at 6.72% at December 31, 2022 and 5.31% at September 30, 2022. The Note Requires Quarterly Principal Payments Commencing on December 31, 2022 and Maturing with a Full Repayment on August 9, 2027 [Member]
Long-term Debt and Line of Credit [Abstract]
Interest rate		6.72%	5.31%
Maturity date		Aug. 09, 2027
Long-term debt, gross		$ 445,000	$ 445,000
Revolving Note Payable for an Amount up to $65.0 Million to Truist Bank, Secured and Bearing Interest at 6.72% at December 31, 2022. The Note Requires Full Repayment on August 9, 2027 [Member]
Long-term Debt and Line of Credit [Abstract]
Aggregate principal amount		$ 65,000
Interest rate		6.72%
Maturity date		Aug. 09, 2027
Long-term debt, gross		$ 20,000	0
Notes Payable to Commercial Vehicle Lenders Secured by the Value of the Vehicles Bearing Interest at Rates Ranging from 0.0% to 8.4% Per Annum. The Notes Require Monthly Installment Payments of Principal and Interest Ranging from $100 to $5,600 through July 2028 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Jul. 31, 2028
Frequency of periodic payment		monthly
Long-term debt, gross		$ 4,586	4,173
Notes Payable to Commercial Vehicle Lenders Secured by the Value of the Vehicles Bearing Interest at Rates Ranging from 0.0% to 8.4% Per Annum. The Notes Require Monthly Installment Payments of Principal and Interest Ranging from $100 to $5,600 through July 2028 [Member] \| Minimum [Member]
Long-term Debt and Line of Credit [Abstract]
Interest rate		0.00%
Monthly installment payment amount		$ 100
Notes Payable to Commercial Vehicle Lenders Secured by the Value of the Vehicles Bearing Interest at Rates Ranging from 0.0% to 8.4% Per Annum. The Notes Require Monthly Installment Payments of Principal and Interest Ranging from $100 to $5,600 through July 2028 [Member] \| Maximum [Member]
Long-term Debt and Line of Credit [Abstract]
Interest rate		8.40%
Monthly installment payment amount		$ 5,600
Note Payable To Tom George Yacht Group, Unsecured and Bearing Interest At 5.5% Per Annum. The Note Requires Monthly Interest Payments, With a Balloon Payment of Principal Due On December 1, 2023 [Member]
Long-term Debt and Line of Credit [Abstract]
Interest rate		5.50%
Maturity date		Dec. 01, 2023
Long-term debt, gross		$ 2,056	2,056
Note Payable to Norfolk Marine Company, Unsecured and Bearing Interest at 4.0% Per Annum. The Note Requires Quarterly Interest Payments, with a Balloon Payment of Principal Due on December 1, 2024 [Member]
Long-term Debt and Line of Credit [Abstract]
Interest rate		4.00%
Maturity date		Dec. 01, 2024
Long-term debt, gross		$ 1,126	$ 1,126
A&R Credit Facility [Member]
Long-term Debt and Line of Credit [Abstract]
Aggregate principal amount	65,000
Increase in revolving commitment	$ 125,000
Maturity date	Aug. 09, 2027
A&R Credit Facility [Member] \| Letter of Credit [Member]
Long-term Debt and Line of Credit [Abstract]
Aggregate principal amount	$ 5,000
A&R Credit Facility [Member] \| Swingline Loans [Member]
Long-term Debt and Line of Credit [Abstract]
Aggregate principal amount	$ 5,000
A&R Credit Facility [Member] \| Term SOFR [Member] \| Minimum [Member]
Long-term Debt and Line of Credit [Abstract]
Debt instrument, variable interest rate	1.75%
A&R Credit Facility [Member] \| Term SOFR [Member] \| Maximum [Member]
Long-term Debt and Line of Credit [Abstract]
Debt instrument, variable interest rate	2.75%