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- Definition

Number Of Megawatts

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

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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.

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Amortized cost, before allowance for credit loss, of financing receivable classified as current. Excludes net investment in lease.

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Amortized cost, before allowance for credit loss, of financing receivable classified as noncurrent. Excludes net investment in lease.

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Amount of cash inflow (outflow) from financing activity, classified as other.

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The total amount of operating revenues recognized during the period.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - ADDITIONAL INFORMATION (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) Megawatt	Jun. 30, 2025 USD ($)	Sep. 30, 2025 USD ($)
Intangible Asset, Finite-Lived [Line Items]
Operating revenues attributable to reportable segments		$ 349,180	$ 298,946	$ 1,893,435	$ 1,700,334
Loans receivable in other noncurrent assets		82,900		82,900		$ 69,400
Proceeds from other financing activity	$ 42,500
ES
Intangible Asset, Finite-Lived [Line Items]
Operating revenues attributable to reportable segments		4,900	$ 4,900	14,800	$ 14,800
Deferred revenue		56,400		$ 56,400		36,800
ADI
Intangible Asset, Finite-Lived [Line Items]
Number of megawatts \| Megawatt				5
CSI
Intangible Asset, Finite-Lived [Line Items]
Number of megawatts \| Megawatt				5
Financial Asset, Not Past Due
Intangible Asset, Finite-Lived [Line Items]
Loans receivable in other current assets		$ 25,600		$ 25,600		$ 21,500
Minimum
Intangible Asset, Finite-Lived [Line Items]
Loans receivable, term				5 years
Maximum
Intangible Asset, Finite-Lived [Line Items]
Loans receivable, term				10 years