Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Income from Continuing Operations	$ 64.3	$ 48.3	$ 31.3
Adjustments to reconcile net income (loss) to net cash from operating activities:
Impairment and other charges	53.4rjet_Impairmentchargesandother	21.2rjet_Impairmentchargesandother	0rjet_Impairmentchargesandother
Fair value gain on restructuring asset	(18.4)	0	0
Depreciation and amortization	173.0	150.7	160.0
Debt issue costs and other amortization	13.5us-gaap_AmortizationOfFinancingCosts	5.7us-gaap_AmortizationOfFinancingCosts	3.9us-gaap_AmortizationOfFinancingCosts
Stock compensation expense	4.6	4.0	3.0
Deferred income taxes	22.6	19.2	14.4
Other, net	(8.2)	(6.2)	6.0
Changes in certain assets and liabilities:
Receivables	26.0us-gaap_IncreaseDecreaseInReceivables	(18.3)us-gaap_IncreaseDecreaseInReceivables	1.7us-gaap_IncreaseDecreaseInReceivables
Inventories	6.9us-gaap_IncreaseDecreaseInInventories	(3.5)us-gaap_IncreaseDecreaseInInventories	15.1us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other current assets	(8.0)	(4.6)	1.3
Accounts payable and accrued liabilities	(13.0)	21.2	(6.5)
Other, net	3.8	2.9	(9.4)
Net Cash from operating activities of continuing operations	320.5	240.6	220.8
INVESTING ACTIVITIES:
Purchase of aircraft and other equipment	(569.2)	(476.0)	(24.4)
Proceeds from sale of other assets	41.3us-gaap_ProceedsFromSaleOfOtherAssets1	46.2us-gaap_ProceedsFromSaleOfOtherAssets1	84.2us-gaap_ProceedsFromSaleOfOtherAssets1
Aircraft deposits	(27.5)rjet_AircraftDeposits	(30.0)rjet_AircraftDeposits	0rjet_AircraftDeposits
Change in restricted cash	2.3	(4.3)	(0.4)
Net Cash from (used in) investing activities of continuing operations	(553.1)	(464.1)	59.4
FINANCING ACTIVITIES:
Payments on Debt	(271.1)rjet_PaymentsOnDebt	(205.6)rjet_PaymentsOnDebt	(197.6)rjet_PaymentsOnDebt
Proceeds from debt issuance and refinancing	539.2	470.0	6.2
Repayments of Convertible Debt	(48.7)us-gaap_RepaymentsOfConvertibleDebt	0us-gaap_RepaymentsOfConvertibleDebt	0us-gaap_RepaymentsOfConvertibleDebt
Payments on early extinguishment of debt and refinancing	(37.0)	(58.7)	(52.0)
Proceeds from exercise of stock options	2.6	4.1	0
Treasury stock repurchases	(2.1)	0	0
Other, net	(3.1)	(4.1)	(0.5)
Net Cash from (used in) financing activities of continuing operations	179.8	205.7	(243.9)
DISCONTINUED OPERATIONS
Cash from operating activities - discontinued operations	0	90.3	29.7
Cash from investing activities - discontinued operations	0	70.0	(20.3)
Cash from financing activities - discontinued operations	0	(40.1)	(17.8)
NET CASH FROM DISCONTIUED OPERATIONS, excluding proceeds from sale of Frontier of $83.7 million included in cash from investing activities from discontinued operations in 2013	0	36.5	(8.4)
Proceeds from Divestiture of Businesses	0	83.7	0
Net changes in cash and cash equivalents	(52.8)	65.9	36.3
CASH AND CASH EQUIVALENTS—Beginning of period	276.7	210.8	174.5
CASH AND CASH EQUIVALENTS—End of period	$ 223.9	$ 276.7	$ 210.8

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The cash outflow to reacquire common stock during the period.

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The cash outflow for incremental, external costs directly pertaining to an early extinguishment of debt, including legal costs and prepayment penalties, and excluding interest and repayment of debt principal.

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No definition available.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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Amount of cash inflow from the sale of other assets as part of operating activities.

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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