Overview and Summary Of Significant Accounting Policies Schedule of Accounts and notes receivable (Details) - USD ($) $ in Thousands |
9 Months Ended | |||
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Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] | ||||
| Receivables from Customers | $ 189,172 | $ 184,471 | ||
| Unbilled Receivables, Current | 92,169 | 94,875 | ||
| Receivables from Stockholder | 8,944 | 8,533 | ||
| Other Receivables | 26,247 | 22,394 | ||
| Accounts Receivable, Allowance for Credit Loss | (12,389) | (14,057) | ||
| Accounts Receivable, after Allowance for Credit Loss, Current | 304,143 | 296,216 | ||
| Accounts Receivable, Allowance for Credit Loss, Current | 12,389 | $ 16,477 | $ 14,057 | $ 29,798 |
| Accounts Receivable, Credit Loss Expense (Reversal) | 15,014 | 22,718 | ||
| Accounts Receivable, Allowance for Credit Loss, Writeoff | (17,347) | (36,395) | ||
| Accounts Receivable, Allowance for Credit Loss, Recovery | $ 665 | $ 356 | ||
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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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Long-Term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in allowance for credit loss on accounts receivable, from recovery. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount due from parties in nontrade transactions, classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer. No definition available.
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