Document and Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] Common Class A [Member] Class A common stock Class A Common Stock Common Class B [Member] Class B common stock Class B Common Stock Document Information [Line Items] Document and Entity Information Document Type Document Quarterly Report Document Transition Report Document Period End Date Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, Adress Line Two Entity Address, City or Town Entity Address State Or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag CONDENSED CONSOLIDATED BALANCE SHEETS Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalent Cash and cash equivalents Represents the portion of assets pledged or restricted as collateral to support insurance-related obligations that are expected to be realized or released within one year or the operating cycle, whichever is longer. Insurance Collateral, Current Insurance collateral Insurance Collateral Accounts Receivable, after Allowance for Credit Loss, Current Accounts receivable, net Inventory, Net Spare parts, medical supplies and fuel Prepaid Expense, Current Prepaid expenses Other Assets, Current Other current assets Assets, Current Total current assets Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Property and equipment, net of accumulated depreciation of $1,269,762 and $1,223,603 at March 31, 2026 and December 2025, respectively Operating Lease, Right-of-Use Asset Operating right-of-use assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Finance right-of-use assets Finance right-of-use assets, net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Intangible assets, net Total intangibles, net Goodwill Goodwill Other Assets, Noncurrent Other assets Assets Total assets Liabilities and Equity [Abstract] LIABILITIES, MEZZANINE EQUITY AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Employee-related Liabilities, Current Accrued wages, benefits and taxes Interest Payable, Current Accrued interest Other Accrued Liabilities, Current Other accrued liabilities Total other accrued liabilities Present value of lessee's discounted obligation for lease payments from operating and finance lease, classified as current. Operating Lease and Finance Lease, Liability, Current Current portion of lease obligations Long-Term Debt, Current Maturities Less current portion of long-term debt Current portion of long-term debt Liabilities, Current Total current liabilities Operating Lease, Liability, Noncurrent Operating lease obligations Finance Lease, Liability, Noncurrent Finance lease obligations Long-Term Debt, Excluding Current Maturities Long-term debt Deferred Income Tax Liabilities, Net Deferred income taxes Represents noncurrent insurance-related reserves including policy benefits, claims reserves, and other insurance obligations expected to be settled beyond one year. Insurance Reserves, Noncurrent Insurance reserves Insurance Reserves Other Liabilities, Noncurrent Other long-term liabilities Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies Temporary Equity [Abstract] Mezzanine equity: Temporary Equity, Carrying Amount, Attributable to Parent Ending balance Beginning balance Total mezzanine equity Equity, Attributable to Parent [Abstract] Stockholders' equity: Common Stock, Value, Issued Common stock, $0.0001 par value, 200,000,000 shares authorized and 22,096,835 and 22,096,835 shares issued and outstanding, respectively Additional Paid in Capital Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings (deficit) Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income (loss) Equity, Attributable to Parent Ending balance Beginning balance Total stockholders' equity (deficit) Liabilities and Equity Total liabilities, mezzanine equity and stockholders' equity Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Property and equipment, net of accumulated depreciation Common Stock, Par or Stated Value Per Share Common stock, Par value Common Stock, Shares Authorized Common stock, Shares authorized Common Stock, Shares, Issued Ending balance (in shares) Beginning balance (in shares) Common stock, Shares issued Common Stock, Shares, Outstanding Common stock, Shares outstanding CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS Revenue from Contract with Customer, Excluding Assessed Tax Net revenue Operating Expenses [Abstract] Operating expenses: Labor and Related Expense Employee wages, benefits and taxes Amount of maintenance, fuel and other direct expenses directly related to goods produced and sold, or services rendered, during the reporting period. Maintenance, Fuel and Other Direct Expenses Maintenance, fuel and other direct expenses General Insurance Expense Insurance expense Other Cost and Expense, Operating Other operating expenses Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Asset, Impairment Loss Impairment of assets held for sale and other investments Business Combination, Integration-Related Cost, Expense Acquisition, integration and other charges Operating Expenses Total operating expenses Operating Income (Loss) Operating income Interest Income (Expense), Nonoperating Interest expense, net Income (Loss) from Equity Method Investments Equity in (earnings) losses of unconsolidated affiliates Other Nonoperating Income (Expense) Other (income) loss, net Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Net income (loss) before income taxes Income Tax Expense (Benefit) Income tax (benefit) expense Net income (loss) BASIC AND DILUTED NET INCOME (LOSS) PER SHARE Net income (loss) available to common stockholders per share: Earnings Per Share, Basic Basic Earnings Per Share, Diluted Diluted Weighted Average Number of Shares Outstanding, Basic [Abstract] Weighted-average common shares outstanding: Weighted Average Number of Shares Outstanding, Basic Basic Weighted Average Number of Shares Outstanding, Diluted Diluted Diluted Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income (loss) Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Unrealized holding gains (losses) on investments Before Tax Amount Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Deferred income tax benefit (expense), net Tax Benefit (Expense) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income (loss), net of tax benefit (expense) of ($0.1) million Total other comprehensive income (loss), net of income tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income (loss) CONDENSED CONSOLIDATED STATEMENTS OF MEZZANINE EQUITY AND STOCKHOLDERS' EQUITY Statement [Table] Equity Components [Axis] Equity Component [Domain] Common Stock [Member] Common Stock Additional Paid-in Capital [Member] Additional Paid-in Capital Retained Earnings [Member] Retained Earnings AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Stockholders' equity Amount of increase (decrease) in additional paid in capital (APIC) resulting from the redemption of redeemable preferred stock. Adjustments to Additional Paid in Capital, Redemption of Redeemable Preferred Stock Redemption of redeemable preferred stock APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock-based compensation expense Value of shares issued under share-based payment arrangement, net of shares withheld for tax. Shares Issued, Value, Share-Based Payment Arrangement, Net of Shares Withheld for Tax Issuance of shares under stock award plan, net of shares withheld for cash taxes paid Number of shares issued under share-based payment arrangement net of shares withheld for tax. Shares Issued, Shares, Share-Based Payment Arrangement, Net of Shares Withheld for Tax Issuance of shares under stock award plan, net of shares withheld for cash taxes paid (in shares) Increase (Decrease) in Temporary Equity [Roll Forward] Redeemable Preferred Stock Temporary Equity, Shares Outstanding Ending balance (in shares) Beginning balance (in shares) Redeemable preferred stock, Outstanding The value of temporary equity redeemed during period. Temporary Equity, Redeemed During Period, Value Redemption of redeemable preferred stock Number of temporary equity shares redeemed during period. Temporary Equity, Redeemed During Period, Shares Redemption of redeemable preferred stock (in shares) Number of preferred shares redeemed CONSOLIDATED STATEMENTS OF CASH FLOWS Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash flows from operating activities: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income (loss) Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities Aggregate expense recognized in the current period for allocating the cost of tangible, intangible, or depleting assets to the periods benefiting from their use, excluding amortization expense related to debt discounts (premiums) and debt issuance costs. Depreciation and Amortization Excluding Amortization of Financing Costs and Discounts Depreciation and amortization Amortization of Debt Issuance Costs and Discounts Amortization of deferred financing costs and debt discount Paid-in-Kind Interest Paid-in-kind interest on long-term debt Gain (Loss) on Disposition of Business (Gain) loss on divestiture of businesses Share-Based Payment Arrangement, Noncash Expense Stock-based compensation expense Amount of increase (decrease) in liability classified stock awards resulting from the changes in the fair value. Liability Classified Stock Awards Fair Value Adjustment Liability classified stock awards Gain (Loss) on Disposition of Property Plant Equipment Loss (gain) on disposal of property and equipment Marketable Security, Unrealized Gain (Loss) Unrealized loss (gain) on marketable equity securities Deferred Income Tax Expense (Benefit) Deferred income taxes Other Noncash Income (Expense) Other, net Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Changes in assets and liabilities, net of effects of acquisitions Increase (Decrease) in Accounts Receivable Accounts receivable, net Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Employee Related Liabilities Accrued wages, benefits and taxes Increase (Decrease) in Interest Payable, Net Accrued interest Increase (Decrease) in Other Accrued Liabilities Accrued liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Other assets and liabilities, net Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash provided by (used in) operating activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Cash flows from investing activities: Proceeds from Divestiture of Businesses Proceeds from divestiture of businesses The cash inflow associated with the sale of insurance policy investment assets and insurance recoveries during the period. Proceeds From Sale Of Insurance Investments and Insurance Recoveries Proceeds from asset disposals related to sales and insurance recoveries Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Amount of increase (decrease) in investments held as insurance collateral. Increase (Decrease) In Investments Held as Insurance Collateral, Investing Activity Net change in investments held as insurance collateral Payments to Acquire Marketable Securities Purchases of marketable securities Proceeds from Sale and Maturity of Marketable Securities Sales and maturities of marketable securities Payment for (Proceeds from) Other Investing Activity Other investing activities, net Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash provided by (used in) investing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Cash flows from financing activities: Finance Lease, Principal Payments Payments on finance lease obligations Finance cash flows from finance leases Repayments of Long-Term Debt Principal payments on long-term debt Proceeds from Issuance of Long-Term Debt Proceeds from issuance of long-term debt Proceeds from (Repurchase of) Redeemable Preferred Stock Aggregate redemption price (Redemption) issuance of redeemable preferred stock Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Proceeds from issuance of shares under stock award plan, net of cash taxes paid Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash provided by (used in) financing activities Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation (Decrease) increase in cash, cash equivalents, restricted cash and restricted cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Cash and cash equivalents, end of period (including restricted cash and restricted cash equivalents of $10.6 million and $15.6 million, respectively) Cash and cash equivalents, beginning of period (including restricted cash and restricted cash equivalents of $14.8 million and $16.6 million, respectively) Supplemental Cash Flow Elements [Abstract] Supplemental disclosure of cash flow information Non-cash investing and financing activity representing additions of equipment (primarily aircraft) financed through the issuance of debt during the period. Equipment Additions Financed With Debt Issuance Equipment (primarily aircraft) additions financed with the issuance of debt Interest Paid, Excluding Capitalized Interest, Operating Activity Interest Income Tax Paid, after Refund Received Income taxes, net of refunds received Restricted Cash and Cash Equivalent Restricted cash and restricted cash equivalents DESCRIPTION OF COMPANY Nature of Operations [Text Block] DESCRIPTION OF COMPANY SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Earnings Per Share [Text Block] BASIC AND DILUTED NET INCOME (LOSS) PER SHARE REVENUE RECOGNITION Revenue from Contract with Customer [Text Block] REVENUE RECOGNITION LEASE COMMITMENTS The entire disclosure of information about leases. Lease Disclosure [Text Block] LEASE COMMITMENTS GOODWILL AND INTANGIBLE ASSETS Intangible Asset and Goodwill [Text Block] GOODWILL AND INTANGIBLE ASSETS No definition. OTHER ACCRUED LIABILITIES The entire disclosure of other accrued liabilities. Other Accrued Liabilities [Text Block] OTHER ACCRUED LIABILITIES REDEEMABLE PREFERRED STOCK The entire disclosure of temporary equity. Temporary Equity Disclosure [Text Block] REDEEMABLE PREFERRED STOCK WARRANTS The entire disclosure of warrants and rights. Warrants and Rights Note Disclosure [Text Block] WARRANTS LONG-TERM DEBT Long-Term Debt [Text Block] LONG-TERM DEBT