Supporting Financial Information - Debt Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Debt Instrument [Line Items]
Less: unamortized deferred financing costs	$ (7,665)		$ (1,584)
Long-term portion of debt obligations, net of deferred financing costs	188,095		20,416
Less: current portion of debt obligations, net of deferred financing costs	(28,716)	$ 0
Long-term portion of debt obligations, net of deferred financing costs	159,379	$ 20,416	20,416
Secured debt, current	14,300
Line of credit, current	16,400
Debt instrument, unamortized discount (premium) and debt issuance costs, net	2,000
Secured Debt
Debt Instrument [Line Items]
Long-term debt	179,312		22,000
Less: current portion of debt obligations, net of deferred financing costs	(28,716)		0
Secured Revolving Line of Credit
Debt Instrument [Line Items]
Long-term debt	$ 16,448		$ 0

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.

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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.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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The carrying value as of the balance sheet date of the current portion 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.

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

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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.

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

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Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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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.

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