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[Axis] On or Prior to the Fourth Anniversary Debt Instrument, Redemption, Period One [Member] Issuance of shares of AAG common stock pursuant to employee stock plans (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Entity Registrant Name Entity Registrant Name Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] Dilutive effect of stock awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Mark-to-market adjustments on equity investments, net Equity Securities, FV-NI, Unrealized Gain (Loss) Adjustment to Compensation, Amount Adjustment to Compensation Amount Secured and Unsecured Debt Secured And Unsecured Debt [Member] Secured And Unsecured Debt Number of additional putative class action lawsuits Number Of Additional Putative Class Action Lawsuits Number Of Additional Putative Class Action Lawsuits Debt refinancing and extinguishment Debt Refinancing, Debt Extinguishment And Other Expense Debt Refinancing, Debt Extinguishment And Other Expense Document Period End Date Document Period End Date Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Adoption Date Trading Arrangement Adoption Date Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Entity Central Index Key Entity Central Index Key Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Decrease in restricted short-term investments Increase (Decrease) In Restricted Short-Term Investments Increase (Decrease) In Short-Term Investments Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] Restricted cash and short-term investments Restricted Cash and Investments, Current Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated 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Company Selected Measure Amount Company Selected Measure Amount Airline Destinations [Axis] Airline Destinations [Axis] Additional paid-in capital Additional Paid in Capital, Common Stock Additional Paid-in Capital Additional Paid-in Capital [Member] Total assets Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Republic Airways Holdings, Inc. Republic Airways Holdings, Inc. [Member] Republic Airways Holdings, Inc. [Member] Cover [Abstract] Share-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Recurring Fair Value, Recurring [Member] Salaries, wages and benefits Labor and Related Expense Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Other liabilities Other Liabilities, Noncurrent Non-NEOs Non-NEOs [Member] Net current-period other comprehensive income (loss), before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Government Assistance, Type [Domain] Government Assistance, Type [Domain] Pension Benefits Pension Plan [Member] Net increase in cash and restricted cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Secured Debt Secured Debt [Member] Non-PEO NEO Non-PEO NEO [Member] Equity Component [Domain] Equity Component [Domain] Debt instrument, special interest rate Debt Instrument, Special Interest Rate Debt Instrument, Special Interest Rate Adjustment to Compensation: Adjustment to Compensation [Axis] Term Loan Term Loan [Member] Term Loan State State and Local Jurisdiction [Member] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Scenario [Axis] Scenario [Axis] 2014 Revolving Facility Credit Facility 2014 [Member] Credit Facility 2014 [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Basic (in shares) Basic weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Collateral coverage ratio Debt Instrument, Covenant Terms, Minimum Collateral Coverage Ratio Debt Instrument, Covenant Terms, Minimum Collateral Coverage Ratio Entity Current Reporting Status Entity Current Reporting Status Payroll Support Program Promissory Note One, CARES Act Payroll Support Program Promissory Note One, CARES Act [Member] Payroll Support Program Promissory Note One, CARES Act Operating income (loss) Operating Income (Loss) After the Fourth Anniversary and On or Prior to the Fifth Anniversary Debt Instrument, Redemption, Period Two [Member] AAdvantage Term Loan Facility AAdvantage Term Loan Facility [Member] AAdvantage Term Loan Facility Operating revenues: Revenues [Abstract] Debt instrument, basis spread on variable rate, interest rate margin Debt Instrument, Basis Spread On Variable Rate, Interest Rate Margin Debt Instrument, Basis Spread On Variable Rate, Interest Rate Margin Debt instrument, redemption price, percentage of original aggregate principal amount redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Interest rate adjustment Debt Instrument, Basis Spread On Variable Rate, Interest Rate Adjustment Debt Instrument, Basis Spread On Variable Rate, Interest Rate Adjustment Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Statement [Line Items] Statement [Line Items] Fair Value Estimate of Fair Value Measurement [Member] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Scenario [Domain] Scenario [Domain] 2013 Revolving Facility Credit Facility 2013 [Member] Credit Facility 2013 Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Schedule of Long-Term Debt Schedule of Debt [Table Text Block] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Other revenue Other Revenue [Member] Other Revenue [Member]