Aircastle (AYR) 10-Q3 Nov 152015 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2015	Oct. 30, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	Aircastle LTD
Entity Central Index Key	1,362,988
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Amendment Flag	false
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		81,187,495

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 149,041	$ 169,656
Accounts receivable	3,046	3,334
Restricted cash and cash equivalents	84,258	98,884
Restricted liquidity facility collateral	65,000	65,000
Flight equipment held for lease, net of accumulated depreciation of $1,403,443 and $1,294,063, respectively	5,885,807	5,579,718
Net investment in finance leases	120,882	106,651
Unconsolidated equity method investment	49,131	46,453
Other assets	131,231	105,450
Total assets	6,488,396	6,175,146
LIABILITIES
Borrowings from secured financings, net of debt issuance costs	1,277,361	1,373,131
Borrowings from unsecured financings, net of debt issuance costs	2,717,859	2,371,456
Accounts payable, accrued expenses and other liabilities	154,209	140,863
Lease rentals received in advance	60,447	53,216
Liquidity facility	65,000	65,000
Security deposits	114,594	117,689
Maintenance payments	338,515	333,456
Total liabilities	$ 4,727,985	$ 4,454,811
Commitments and Contingencies
SHAREHOLDERS’ EQUITY
Common shares, $.01 par value, 250,000,000 shares authorized, 81,181,495 shares issued and outstanding at September 30, 2015; and 80,983,249 shares issued and outstanding at December 31, 2014	$ 812	$ 810
Additional paid-in capital	1,567,692	1,565,180
Retained earnings	210,310	192,805
Accumulated other comprehensive loss	(18,403)	(38,460)
Total shareholders’ equity	1,760,411	1,720,335
Total liabilities and shareholders’ equity	$ 6,488,396	$ 6,175,146

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Accumulated depreciation on flight equipment held for lease	$ 1,403,443	$ 1,294,063
Borrowings from secured financings	$ 1,277,361	$ 1,373,131
Common shares, par value	$ 0.01	$ 0.01
Common shares, shares authorized	250,000,000	250,000,000
Common shares, shares issued	81,181,495	80,983,249
Common shares, shares outstanding	81,181,495	80,983,249
Preference shares, par value	$ 0.01	$ 0.01
Preference shares, shares authorized	50,000,000	50,000,000

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Lease rental revenue	$ 188,038	$ 178,886	$ 550,023	$ 536,452
Finance lease revenue	1,868	1,463	5,352	9,347
Amortization of lease premiums, discounts and lease incentives	(2,113)	(1,075)	(10,288)	(7,252)
Maintenance revenue	15,726	(4,189)	55,148	35,035
Total lease revenue	203,519	175,085	600,235	573,582
Other revenue	8,555	2,511	10,700	6,763
Total revenues	212,074	177,596	610,935	580,345
Operating expenses:
Depreciation	85,324	75,519	237,538	225,230
Interest, net	60,381	56,794	184,063	181,551
Selling, general and administrative (including non-cash share based payment expense of $1,424 and $949 for the three months ended and $3,981 and $3,167 for the nine months ended September 30, 2015 and 2014, respectively)	14,032	13,817	42,663	41,818
Impairment of Aircraft	78,403	20,436	102,358	67,005
Maintenance and other costs	2,520	713	9,126	5,222
Total expenses	240,660	167,279	575,748	520,826
Other income (expense):
Gain on sale of flight equipment	15,679	11,390	43,034	13,384
Gains (Losses) on Extinguishment of Debt	0	0	0	(36,570)
Other	70	1	341	758
Total other income (expense)	15,749	11,391	43,375	(22,428)
Income (loss) from continuing operations before income taxes	(12,837)	21,708	78,562	37,091
Income tax provision	2,709	3,484	12,037	10,925
Earnings of unconsolidated equity method investment, net of tax	1,557	927	4,563	1,898
Net income (loss)	$ (13,989)	$ 19,151	$ 71,088	$ 28,064
Earnings (loss) per common share — Basic:
Net income (loss) per share (in dollars per share)	$ (0.17)	$ 0.24	$ 0.88	$ 0.35
Earnings (loss) per common share — Diluted:
Net income (loss) per share	(0.17)	0.24	0.88	0.35
Dividends declared per share	$ 0.22	$ 0.20	$ 0.66	$ 0.60

Consolidated Statements of Inc5

Consolidated Statements of Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Maintenance Revenue	$ 15,726	$ (4,189)	$ 55,148	$ 35,035
Non-cash share based payment expense	$ 1,424	$ 949	$ 3,981	$ 3,167

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (13,989)	$ 19,151	$ 71,088	$ 28,064
Other comprehensive income, net of tax:
Net change in fair value of derivatives, net of tax expense of $3 and $21 for the three months ended and tax expense of $26 and $825 for the nine months ended September 30, 2015 and 2014, respectively	272	1,643	708	2,025
Net derivative loss reclassified into earnings	5,006	8,549	19,349	26,730
Other comprehensive income	5,278	10,192	20,057	28,755
Total comprehensive income (loss)	$ (8,711)	$ 29,343	$ 91,145	$ 56,819

Consolidated Statements of Com7

Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net of tax expense	$ 3	$ 21	$ 26	$ 825

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Statement of Cash Flows [Abstract]
Net income (loss)	$ 71,088	$ 28,064
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	237,538	225,230
Amortization of deferred financing costs	11,211	10,493
Amortization of net lease discounts and lease incentives	10,288	7,252
Deferred income taxes	(1,455)	(2,623)
Non-cash share based payment expense	3,981	3,167
Cash flow hedges reclassified into earnings	19,349	26,730
Security deposits and maintenance payments included in earnings	(20,645)	(38,257)
Gain on sale of flight equipment	(43,034)	(13,384)
Gains (Losses) on Extinguishment of Debt	0	36,570
Impairment of Aircraft	102,358	67,005
Other	269	(2,278)
Changes in certain assets and liabilities:
Accounts receivable	253	(1,603)
Other assets	(4,382)	(1,691)
Accounts payable, accrued expenses and other liabilities	14,085	17,138
Lease rentals received in advance	7,566	4,162
Net cash provided by operating activities	408,470	365,975
Cash flows from investing activities:
Acquisition and improvement of flight equipment and lease incentives	(1,034,578)	(939,651)
Proceeds from sale of flight equipment	343,020	563,882
Increase (Decrease) in Restricted Cash	0	(24,606)
Payments for (Proceeds from) Other Deposits	4,421	(1,315)
Payments to Acquire Finance Receivables	(24,000)	(14,258)
Collections on finance leases	6,768	8,096
Payments to Acquire Interest in Subsidiaries and Affiliates	0	(8,592)
Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital	0	997
Other	(260)	(466)
Net cash used in investing activities	(713,471)	(413,283)
Cash flows from financing activities:
Issuance of shares net of repurchases	1,960	2,092
Proceeds from secured and unsecured debt financings	800,000	803,200
Repayments of secured and unsecured debt financings	(548,359)	(895,459)
Payments of Debt Extinguishment Costs	0	(32,835)
Deferred financing costs	(12,185)	(15,843)
Restricted liquidity facility collateral	0	42,000
Liquidity facility	0	(42,000)
Restricted cash and cash equivalents related to financing activities	(14,626)	(32,987)
Security deposits and maintenance payments received	114,644	131,136
Security deposits and maintenance payments returned	28,797	72,030
Payments for terminated cash flow hedges	0	(33,427)
Dividends paid	(53,583)	(48,604)
Net cash provided by (used in) financing activities	284,386	(132,967)
Net increase (decrease) in cash and cash equivalents	(20,615)	(180,275)
Cash and cash equivalents at beginning of period	169,656	654,613
Cash and cash equivalents at end of period	149,041	474,338
Supplemental disclosures of cash flow information:
Cash paid for interest	129,696	135,880
Cash paid for income taxes	9,665	4,382
Supplemental disclosures of non-cash investing activities:
Purchase deposits, advance lease rentals, security deposits and maintenance payments assumed in asset acquisitions	8,461	20,837
Term debt financings assumed in asset acquisitions	0	39,061
Advance lease rentals, security deposits, and maintenance payments settled in sale of flight equipment	$ 77,624	$ 65,831

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
Summary of Significant Accounting Policies	Sep. 30, 2015
Accounting Policies [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	Summary of Significant Accounting Policies Organization and Basis of Presentation Aircastle Limited (“Aircastle,” the “Company,” “we,” “us” or “our”) is a Bermuda exempted company that was incorporated on October 29, 2004 under the provisions of Section 14 of the Companies Act of 1981 of Bermuda. Aircastle’s business is investing in aviation assets, including acquiring, leasing, managing and selling high utility commercial jet aircraft. Aircastle is a holding company that conducts its business through subsidiaries. Aircastle directly or indirectly owns all of the outstanding common shares of its subsidiaries. The consolidated financial statements presented are prepared in accordance with U.S. generally accepted accounting principles (“US GAAP”). We operate in one segment. The accompanying consolidated financial statements are unaudited and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial reporting and, in our opinion, reflect all adjustments, including normal recurring items, which are necessary to present fairly the results for interim periods. Operating results for the periods presented are not necessarily indicative of the results that may be expected for the entire year. Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with US GAAP have been omitted in accordance with the rules and regulations of the SEC; however, we believe that the disclosures are adequate to make information presented not misleading. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 . The Company’s management has reviewed and evaluated all events or transactions for potential recognition and/or disclosure since the balance sheet date of September 30, 2015 through the date on which the consolidated financial statements included in this Form 10-Q were issued. Effective July 1, 2015, the Company adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2015-03, Interest - Imputation of Interest (Subtopic 835-30) Simplifying the Presentation of Debt Issuance Costs , which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the associated debt liability. The guidance in the new standard is limited to the presentation of debt issuance costs and does not affect the recognition and measurement of debt issuance costs. The standard is effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. Early adoption is permitted for financial statements that have not been previously issued. The new guidance is applied on a retrospective basis. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements. Principles of Consolidation The consolidated financial statements include the accounts of Aircastle and all of its subsidiaries. Aircastle consolidates seven Variable Interest Entities (“VIEs”) of which Aircastle is the primary beneficiary. All intercompany transactions and balances have been eliminated in consolidation. We consolidate VIEs in which we have determined that we are the primary beneficiary. We use judgment when deciding (a) whether an entity is subject to consolidation as a VIE, (b) who the variable interest holders are, (c) the potential expected losses and residual returns of the variable interest holders, and (d) which variable interest holder is the primary beneficiary. When determining which enterprise is the primary beneficiary, we consider (1) the entity’s purpose and design, (2) which variable interest holder has the power to direct the activities that most significantly impact the entity’s economic performance, and (3) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. When certain events occur, we reconsider whether we are the primary beneficiary of VIEs. We do not reconsider whether we are a primary beneficiary solely because of operating losses incurred by an entity. Use of Estimates The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. While Aircastle believes that the estimates and related assumptions used in the preparation of the consolidated financial statements are appropriate, actual results could differ from those estimates. Proposed Accounting Pronouncements In May 2013, the FASB issued re-exposure draft, “Leases” (the “Lease Re-ED”), which would replace the existing guidance in the Accounting Standards Codification (“ASC”) 840 (“ASC 840”), Leases . In March 2014, the FASB decided that the accounting for leases by lessors would basically remain unchanged from the concepts existing in current ASC 840 accounting. In addition, the FASB decided that a lessor should be precluded from recognizing selling profit and revenue at lease commencement for any sales-type or direct finance lease that does not transfer control of the underlying asset to the lessee. This requirement aligns the notion of what constitutes a sale in the lessor accounting guidance with that in the forthcoming revenue recognition standard, which evaluates whether a sale has occurred from the customer’s perspective. We anticipate that the final standard may have an effective date no earlier than 2018. We believe that when and if the proposed guidance becomes effective, it will not have a material impact on the Company’s consolidated financial statements. On May 28, 2014, the FASB and the International Accounting Standards Board (the “IASB”) (collectively, the Boards), jointly issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). Lease contracts within the scope of ASC 840, Leases , are specifically excluded from ASU No. 2014-09. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which a company expects to be entitled in exchange for those goods or services. The standard is effective for public entities beginning after December 15, 2017. The standard allows for either “full retrospective” adoption, meaning the standard is applied to all of the periods presented, or “modified retrospective” adoption, meaning the standard is applied only to the most current period presented in the financial statements. We are evaluating the effect that ASU 2014-09 will have on our consolidated financial statements and related disclosures. The Company is currently evaluating the impact of the ASU on its consolidated financial statements and related disclosures. On August 27, 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40). The standard requires management of public companies to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern and, if so, disclose that fact. Management should evaluate whether there are conditions or events, considered in the aggregate, that raises substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued (or available to be issued, when applicable). The standard is effective for annual periods ending after December 15, 2016 and interim periods thereafter, and early adoption is permitted. We do not believe the standard will have a material impact on our consolidated financial statements and related disclosures when adopted.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
Fair Value Measurements	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value measurements and disclosures require the use of valuation techniques to measure fair value that maximize the use of observable inputs and minimize use of unobservable inputs. These inputs are prioritized as follows: • Level 1: Observable inputs such as quoted prices in active markets for identical assets or liabilities. • Level 2: Inputs other than quoted prices included within Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities or market corroborated inputs. • Level 3: Unobservable inputs for which there is little or no market data and which require us to develop our own assumptions about how market participants price the asset or liability. The valuation techniques that may be used to measure fair value are as follows: • The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. • The income approach uses valuation techniques to convert future amounts to a single present amount based on current market expectation about those future amounts. • The cost approach is based on the amount that currently would be required to replace the service capacity of an asset (replacement cost). The following tables set forth our financial assets and liabilities as of September 30, 2015 and December 31, 2014 that we measured at fair value on a recurring basis by level within the fair value hierarchy. Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to their fair value measurement. Fair Value Measurements at September 30, 2015 Using Fair Value Hierarchy Fair Value as of September 30, 2015 Quoted Prices In Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation Technique Assets: Cash and cash equivalents $ 149,041 $ 149,041 $ — $ — Market Restricted cash and cash equivalents 84,258 84,258 — — Market Total $ 233,299 $ 233,299 $ — $ — Liabilities: Derivative liabilities $ 2,433 $ — $ 2,433 $ — Income Fair Value Measurements at December 31, 2014 Using Fair Value Hierarchy Fair Value as of December 31, 2014 Quoted Prices In Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation Technique Assets: Cash and cash equivalents $ 169,656 $ 169,656 $ — $ — Market Restricted cash and cash equivalents 98,884 98,884 — — Market Total $ 268,540 $ 268,540 $ — $ — Liabilities: Derivative liabilities $ 2,879 $ — $ 2,879 $ — Income Our cash and cash equivalents, along with our restricted cash and cash equivalents balances, consist largely of money market securities that are considered to be highly liquid and easily tradable. These securities are valued using inputs observable in active markets for identical securities and are therefore classified as Level 1 within our fair value hierarchy. Our interest rate derivatives included in Level 2 consist of United States dollar-denominated interest rate derivatives, and their fair values are determined by applying standard modeling techniques under the income approach to relevant market interest rates (cash rates, futures rates, swap rates) in effect at the period close to determine appropriate reset and discount rates and incorporates an assessment of the risk of non-performance by the interest rate derivative counterparty in valuing derivative assets and an evaluation of the Company’s credit risk in valuing derivative liabilities. For the three and nine months ended September 30, 2015 and 2014 , we had no transfers into or out of Level 3. We measure the fair value of certain assets and liabilities on a non-recurring basis, when US GAAP requires the application of fair value, including events or changes in circumstances that indicate that the carrying amounts of assets may not be recoverable. Assets subject to these measurements include our investment in an unconsolidated joint venture and aircraft. We account for our investment in an unconsolidated joint venture under the equity method of accounting and record impairment when its fair value is less than its carrying value. We record aircraft at fair value when we determine the carrying value may not be recoverable. Fair value measurements for aircraft in impairment tests are based on an income approach which uses Level 3 inputs, which include the Company’s assumptions and appraisal data as to future cash proceeds from leasing and selling aircraft. Aircraft Valuation Annual Fleet-Wide Review We perform our annual fleet-wide recoverability assessment during the third quarter of each year. This recoverability assessment is a comparison of the carrying value of each aircraft to its undiscounted expected future cash flows. We develop the assumptions used in the recoverability assessment, including those relating to current and future demand for each aircraft type, based on management's experience in the aircraft leasing industry, as well as information received from third party sources. Estimates of the undiscounted cash flows for each aircraft type are impacted by changes in contracted and future expected lease rates, residual values, expected scrap values, economic conditions and other factors. In our 2015 assessment, we reduced forecasted future cash flows for our six Boeing 747-400 converted freighter aircraft not subject to sales agreements, all of which are more than twenty years old. Our new forecast reflects the persisting glut of supply in the air cargo market resulting from weak growth in demand combined with the growth in capacity arising from new production air freighters and higher belly capacity in latest generation wide-body passenger aircraft. In addition to these market-wide impacts, our older freighters were affected specifically by the imposition of age limits in certain countries and by lower utilization levels. As a result, we determined that each of our older converted freighter aircraft was on its last lease, and we reduced our residual value assumptions for these aircraft and expect to scrap them following lease expiry. During the third quarter of 2015, we therefore impaired four of these aircraft, which had an aggregate net book value as of August 31, 2015 of $115,888 , writing down their book values by a total of $34,575 , with a fair value date of September 1, 2015. For one of these aircraft, we recorded maintenance revenue of $5,858 , as we no longer plan to reinvest these funds. In the 2014 assessment, we determined that the cash flows expected to be generated by two of our McDonnell Douglas MD-11 freighter aircraft did not support their carrying values. As a result, during the third quarter of 2014, we impaired these two aircraft, which had an aggregate net book value as of June 30, 2014 of $53,777 , writing down their book values by a total of $19,515 . We also shortened their expected lives from 25 to 21 years and reduced their residual values. Other Impairments In September 2015, Malaysian Airline System (“MAS”) informed us that it was effectively rejecting the lease on our Boeing 777-200ER aircraft as part of its restructuring. This aircraft, which was manufactured in 1998, is the only one of its type in our fleet and the only aircraft we had on lease to MAS. We repossessed it in October 2015. We reduced the carrying value of this aircraft to our best estimate of scrap value. While we haven’t made a decision to dispose of the aircraft, this write-down was driven by weak overall demand tor older widebody aircraft, an increase in the supply of competing aircraft and the difficulty of recovering high redeployment costs given the proliferation of aircraft age limits across the world. This write-down resulted in an impairment of $37,770 , partially offset by $1,200 of other revenue from a letter of credit we drew following the lease rejection. Also in September 2015, we modified the lease agreement with respect to one Airbus A321-200 aircraft. We elected not to reinvest in certain major maintenance events during the lease term, and the lessee agreed to release its rights to certain maintenance payments. As a result, we recorded an impairment of $6,058 and maintenance revenue of $7,109 for this aircraft. In the second quarter of 2015, we impaired two McDonnell Douglas MD-11 freighter aircraft and one Boeing 737-800 aircraft and recorded impairment charges totaling $23,955 and maintenance revenue of $18,234 . During the nine months ended September 30, 2014 , we impaired three Boeing 747-400 converted freighter aircraft and one Boeing 737-400 aircraft and recorded impairment charges totaling $46,570 . For these aircraft, we recorded maintenance revenue of $24,262 and other revenue of $137 and reversed lease incentives of $3,626 . Other than the aircraft discussed above, management believes that the net book value of each of our aircraft is currently supported by the estimated future undiscounted cash flows expected to be generated by that aircraft, and accordingly, no other aircraft were impaired as a consequence of this recoverability assessment. However, if our estimates or assumptions change, we may revise our cash flow assumptions and record future impairment charges. While we believe that the estimates and related assumptions used in the recoverability assessment are appropriate, actual results could differ from those estimates. Financial Instruments Our financial instruments, other than cash, consist principally of cash equivalents, restricted cash and cash equivalents, accounts receivable, accounts payable, amounts borrowed under financings and interest rate derivatives. The fair value of cash, cash equivalents, restricted cash and cash equivalents, accounts receivable and accounts payable approximates the carrying value of these financial instruments because of their short-term nature. The fair value of our Securitization No. 2, which contains a third party credit enhancement, is estimated using a discounted cash flow analysis, based on our current incremental borrowing rates of borrowing arrangements that do not contain third party credit enhancements. The fair values of our ECA term financings and bank financings are estimated using a discounted cash flow analysis, based on our current incremental borrowing rates for similar types of borrowing arrangements. The fair value of our Senior Notes is estimated using quoted market prices. The carrying amounts and fair values of our financial instruments at September 30, 2015 and December 31, 2014 are as follows: September 30, 2015 December 31, 2014 Carrying Amount of Asset (Liability) Fair Value of Asset (Liability) Carrying Amount of Asset (Liability) Fair Value of Asset (Liability) Securitization No. 2 $ (229,969 ) $ (226,385 ) $ (391,680 ) $ (376,752 ) Credit Facilities (50,000 ) (50,000 ) (200,000 ) (200,000 ) ECA term financings (415,988 ) (441,218 ) (449,886 ) (471,918 ) Bank financings (653,486 ) (674,706 ) (554,888 ) (560,285 ) Senior Notes (2,700,000 ) (2,820,988 ) (2,200,000 ) (2,300,615 ) All of our financial instruments are classified as Level 2 with the exception of our Senior Notes, which are classified as Level 1.

Lease Rental Revenues and Fligh

Lease Rental Revenues and Flight Equipment Held for Lease	9 Months Ended
Lease Rental Revenues and Flight Equipment Held for Lease	Sep. 30, 2015
Leases [Abstract]
Lease Rental Revenues and Flight Equipment Held for Lease	Lease Rental Revenues and Flight Equipment Held for Lease Minimum future annual lease rentals contracted to be received under our existing operating leases of flight equipment at September 30, 2015 were as follows: Year Ending December 31, Amount Remainder of 2015 $ 182,038 2016 701,166 2017 614,693 2018 535,419 2019 469,377 Thereafter 1,531,375 Total $ 4,034,068 Geographic concentration of lease rental revenue earned from flight equipment held for lease was as follows: Three Months Ended September 30, Nine Months Ended September 30, Region 2015 2014 2015 2014 Asia and Pacific 43 % 39 % 42 % 40 % Europe 28 % 29 % 28 % 29 % South America 16 % 13 % 15 % 12 % Middle East and Africa 9 % 9 % 9 % 9 % North America 4 % 10 % 6 % 10 % Total 100 % 100 % 100 % 100 % The classification of regions in the tables above and in the table and discussion below is determined based on the principal location of the lessee of each aircraft. For the three months ended September 30, 2015 , our two largest customers each accounted for more than 5% of lease rental revenue for a combined 12% . No other customer accounted for more than 5% of lease rental revenue. For the three months ended September 30, 2014 , our four largest customers each accounted for more than 5% of lease rental revenue for a combined 24% . No other customer accounted for more than 5% of lease rental revenue. For the nine months ended September 30, 2015 , our three largest customers each accounted for more than 5% of lease rental revenue for a combined 17% . No other customer accounted for more than 5% of lease rental revenue. For the nine months ended September 30, 2014 , our three largest customers each accounted for more than 5% of lease rental revenue for a combined 17% . No other customer accounted for more than 5% of lease rental revenue. For the three and nine months ended September 30, 2015 and 2014 , respectively, no country represented at least 10% of total revenue based on each lessee’s principal place of business. Geographic concentration of net book value of flight equipment (includes net book value of flight equipment held for lease and net investment in finance leases) was as follows: September 30, 2015 December 31, 2014 Region Number of Aircraft Net Book Value % Number of Aircraft Net Book Value % Asia and Pacific 54 42 % 46 40 % Europe 66 27 % 65 29 % South America 18 17 % 13 14 % Middle East and Africa 6 9 % 6 10 % North America 15 5 % 17 7 % Off-lease 1 (1) — % 1 (2) — % Total 160 100 % 148 100 % _______________ (1) Consists of one Boeing 777-200ER aircraft, which we are marketing for lease or sale. (2) Consisted of one Airbus A320-200 aircraft, which was subject to a commitment to lease and was delivered to our customer in February 2015. The following table sets forth net book value of flight equipment (includes net book value of flight equipment held for lease and net investment in finance leases) attributable to individual countries representing at least 10% of net book value of flight equipment based on each lessee’s principal place of business as of: September 30, 2015 December 31, 2014 Region Net Book Value Net Book Value % Number of Lessees Net Book Value Net Book Value % Number of Lessees Indonesia $ 637,810 11 % 3 $ — — % — At September 30, 2015 and December 31, 2014 , the amounts of lease incentive liabilities recorded in maintenance payments on the consolidated balance sheets were $27,500 and $22,833 , respectively.

Net Investment in Finance Lease

Net Investment in Finance Leases	9 Months Ended
Net Investment in Finance Leases	Sep. 30, 2015
Leases [Abstract]
Net Investment in Finance Leases	Net Investment in Finance Leases At September 30, 2015 , our net investment in finance leases represents six aircraft leased to two customers in the United States, one aircraft leased to a customer in Canada, and one aircraft leased to a customer in Germany. The following table lists the components of our net investment in finance leases at September 30, 2015 : Amount Total lease payments to be received $ 93,976 Less: Unearned income (37,227 ) Estimated residual values of leased flight equipment (unguaranteed) 64,133 Net investment in finance leases $ 120,882 At September 30, 2015 , minimum future lease payments on finance leases are as follows: Year Ending December 31, Amount Remainder of 2015 $ 3,842 2016 15,365 2017 14,843 2018 9,715 2019 9,695 Thereafter 40,516 Total $ 93,976

Unconsolidated Equity Method In

Unconsolidated Equity Method Investment (Notes)	9 Months Ended
Unconsolidated Equity Method Investment (Notes)	Sep. 30, 2015
Equity Method Investments and Joint Ventures [Abstract]
Unconsolidated Equity Method Investment	Unconsolidated Equity Method Investment On December 19, 2013, the Company and an affiliate of Ontario Teachers’ Pension Plan (“Teachers’”) formed a joint venture (the “JV”), in which we hold a 30% equity interest, to invest in leased aircraft. Teachers’ holds 9.7% of our outstanding common shares. The Company recorded a $6,270 guarantee liability, which is reflected in Maintenance payments on the balance sheet and a $5,400 guarantee liability, which is reflected in Security deposits on the balance sheet. Investment in joint venture at December 31, 2014 $ 46,453 Investment in joint venture 2,994 Earnings from joint venture, net of tax 4,563 Distributions (4,879 ) Investment in joint venture at September 30, 2015 $ 49,131

Variable Interest Entities

Variable Interest Entities	9 Months Ended
Variable Interest Entities	Sep. 30, 2015
Variable Interest Entities [Abstract]
Variable Interest Entities	Variable Interest Entities Aircastle consolidates seven VIEs of which it is the primary beneficiary. The operating activities of these VIEs are limited to acquiring, owning, leasing, maintaining, operating and, under certain circumstances, selling the 12 aircraft discussed below. Securitization Aircastle is the primary beneficiary of ACS Ireland 2, as we have both the power to direct the activities of the VIE that most significantly impacts the economic performance of such VIE and we bear the significant risk of loss and participate in gains through Class E-1 Securities. Although Aircastle has not guaranteed the ACS Ireland 2 debt, Aircastle wholly owns ACS Bermuda 2, which has fully and unconditionally guaranteed the ACS Ireland 2 VIE obligations. The activity that most significantly impacts the economic performance is the leasing of aircraft. Aircastle Advisor (Ireland) Limited (Aircastle’s wholly owned subsidiary) is the remarketing servicer and is responsible for the leasing of the aircraft. An Irish charitable trust owns 95% of the common shares of ACS Ireland 2. The Irish charitable trust’s risk is limited to its annual dividend of $2 . At September 30, 2015 , the assets of ACS Ireland 2 include four aircraft transferred into the VIE at historical cost basis in connection with Securitization No. 2. The assets of the ACS Ireland 2, net of intercompany receivables, as of September 30, 2015 are $88,771 . The liabilities of the ACS Ireland 2, net of $40,351 Class E-1 Securities held by the Company and intercompany payables, which are eliminated in consolidation, as of September 30, 2015 are $64,787 . ECA Term Financings Aircastle, through various subsidiaries, each of which is owned by a charitable trust (such entities, collectively the “Air Knight VIEs”), has entered into eight different twelve -year term loans, which are supported by guarantees from Compagnie Francaise d’Assurance pour le Commerce Exterieur, (“COFACE”), the French government sponsored export credit agency (“ECA”). We refer to these COFACE-supported financings as “ECA Term Financings.” Aircastle is the primary beneficiary of the Air Knight VIEs, as we have the power to direct the activities of the VIEs that most significantly impact the economic performance of such VIEs and we bear the significant risk of loss and participate in gains through a finance lease. The activity that most significantly impacts the economic performance is the leasing of aircraft of which our wholly owned subsidiary is the servicer and is responsible for managing the relevant aircraft. There is a cross collateralization guarantee between the Air Knight VIEs. In addition, Aircastle guarantees the debt of the Air Knight VIEs. The only assets that the Air Knight VIEs have on their books are financing leases that are eliminated in the consolidated financial statements. The related aircraft, with a net book value as of September 30, 2015 of $625,680 were included in our flight equipment held for lease. The consolidated debt outstanding, net of debt issuance costs, of the Air Knight VIEs as of September 30, 2015 is $401,339 .

Secured and Unsecured Debt Fina

Secured and Unsecured Debt Financings	9 Months Ended
Secured and Unsecured Debt Financings	Sep. 30, 2015
Debt Disclosure [Abstract]
Secured and Unsecured Debt Financings	Secured and Unsecured Debt Financings The outstanding amounts of our secured and unsecured term debt financings are as follows: At September 30, 2015 At December 31, 2014 Debt Obligation Outstanding Borrowings Number of Aircraft Interest Rate (1) Final Stated Maturity (2) Outstanding Secured Debt Financings: Securitization No. 2 $ 229,969 30 0.51% 06/14/37 $ 391,680 ECA Term Financings 415,988 8 3.02% to 3.96% 12/3/21 to 11/30/24 449,886 Bank Financings 653,486 13 1.21% to 5.09% 10/26/17 to 01/19/26 554,888 Less: Debt Issuance Costs (22,082 ) — (23,323 ) Total secured debt financings, net of debt issuance costs 1,277,361 51 1,373,131 Unsecured Debt Financings: Senior Notes due 2017 500,000 6.75% 04/15/17 500,000 Senior Notes due 2018 400,000 4.625% 12/05/18 400,000 Senior Notes due 2019 500,000 6.250% 12/01/19 500,000 Senior Notes due 2020 300,000 7.625% 04/15/20 300,000 Senior Notes due 2021 500,000 5.125% 03/15/21 500,000 Senior Notes due 2022 500,000 5.50% 02/15/22 — Revolving Credit Facility 50,000 2.44% 05/13/19 200,000 Less: Debt Issuance Costs (32,141 ) (28,544 ) Total unsecured debt financings, net of debt issuance costs 2,717,859 2,371,456 Total secured and unsecured debt financings, net of debt issuance costs $ 3,995,220 $ 3,744,587 (1) Reflects the floating rate in effect at the applicable reset date plus the margin for Securitization No. 2, five of our Bank Financings, and our Revolving Credit Facility. All other financings have a fixed rate. (2) For Securitization No. 2, all cash flows available after expenses and interest are applied to debt amortization. The following Securitization includes a liquidity facility commitment described in the table below: Available Liquidity Facility Liquidity Facility Provider September 30, December 31, Unused Fee Interest Rate on any Advances Securitization No. 2 HSH Nordbank AG $ 65,000 $ 65,000 0.50% 1M Libor + 0.75 Secured Debt Financings: ECA Term Financings As described in Note 6 - Variable Interest Entities, we refer to our COFACE-supported financings as “ECA Term Financings.” In addition, Aircastle has guaranteed the repayment of the ECA Term Financings. The borrowings under these financings at September 30, 2015 have a weighted average rate of interest of 3.57% . Bank Financings In May 2015, we entered into two floating rate loans with The Bank of Tokyo-Mitsubishi UFJ, Ltd. and Development Bank of Japan Inc. These loans, which total $150,000 , are secured by two A330-300 aircraft that we acquired in the fourth quarter of 2014. Our Bank Financings contain, among other customary provisions, a $500,000 minimum net worth covenant and, in some cases, a cross-default to other financings with the same lender. In addition, Aircastle has guaranteed the repayment of the Bank Financings. The borrowings under these financings at September 30, 2015 have a weighted average fixed rate of interest of 3.15% . Unsecured Debt Financings: Senior Notes due 2022 On January 15, 2015, Aircastle issued $500,000 aggregate principal amount of Senior Notes due 2022 (the "2022 Senior Notes") at par. The 2022 Senior Notes will mature on February 15, 2022 and bear interest at the rate of 5.50% per annum, payable semi-annually on February 15 and August 15 of each year, commencing on August 15, 2015. Interest accrues on the 2022 Senior Notes from January 15, 2015. We may redeem the Senior Notes due 2022 at any time at a redemption price equal to (a) 100% of the principal amount of the notes redeemed, plus accrued and unpaid interest thereon to, but not including, the redemption date and (b) the sum of the present values of the remaining scheduled payments of principal and interest on the notes from the redemption date through the maturity date of the notes (computed using a discount rate equal to the Treasury Rate (as defined in the indenture governing the notes) as of such redemption date plus 50 basis points). In addition, on or before February 15, 2018, we may redeem up to 35% of the aggregate principal amount of the notes issued under the indenture at a redemption price equal to 105.50% plus accrued and unpaid interest thereon to, but not including, the redemption date, with the net proceeds of certain equity offerings. If the Company undergoes a change of control, it must offer to repurchase the Senior Notes due 2022 at 101% of the principal amount, plus accrued and unpaid interest. The Senior Notes due 2022 are not guaranteed by any of the Company's subsidiaries or any third party. Revolving Credit Facility On January 26, 2015, we increased the size of our Revolving Credit Facility from $450,000 to $600,000 . On May 13, 2015, we extended the maturity of our Revolving Credit Facility to May 13, 2019. At September 30, 2015 , we had $ 50,000 drawn on the facility. As of September 30, 2015 , we are in compliance with all applicable covenants in all of our financings.

Dividends

Dividends	9 Months Ended
Dividends	Sep. 30, 2015
Dividends [Abstract]
Quarterly dividends declared by board of directors	Dividends The following table sets forth the quarterly dividends declared by our board of directors for the periods covered in this report: Declaration Date Dividend per Common Share Aggregate Dividend Amount Record Date Payment Date August 4, 2015 $ 0.220 $ 17,860 August 31, 2015 September 15, 2015 May 4, 2015 $ 0.220 $ 17,863 May 29, 2015 June 15, 2015 February 17, 2015 $ 0.220 $ 17,860 March 6, 2015 March 13, 2015 October 31, 2014 $ 0.220 $ 17,817 November 28, 2014 December 15, 2014 July 28, 2014 $ 0.200 $ 16,201 August 29, 2014 September 12, 2014 May 5, 2014 $ 0.200 $ 16,202 May 30, 2014 June 13, 2014 February 21, 2014 $ 0.200 $ 16,201 March 7, 2014 March 14, 2014 The following table sets forth the quarterly dividends declared by our board of directors for the periods covered in this report: Declaration Date Dividend per Common Share Aggregate Dividend Amount Record Date Payment Date August 4, 2015 $ 0.220 $ 17,860 August 31, 2015 September 15, 2015 May 4, 2015 $ 0.220 $ 17,863 May 29, 2015 June 15, 2015 February 17, 2015 $ 0.220 $ 17,860 March 6, 2015 March 13, 2015 October 31, 2014 $ 0.220 $ 17,817 November 28, 2014 December 15, 2014 July 28, 2014 $ 0.200 $ 16,201 August 29, 2014 September 12, 2014 May 5, 2014 $ 0.200 $ 16,202 May 30, 2014 June 13, 2014 February 21, 2014 $ 0.200 $ 16,201 March 7, 2014 March 14, 2014

Earnings Per Share

Earnings Per Share	9 Months Ended
Earnings Per Share	Sep. 30, 2015
Earnings Per Share [Abstract]
Earnings Per Share	Earnings (Loss) Per Share We include all common shares granted under our incentive compensation plan which remain unvested (“restricted common shares”) and contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid (“participating securities”), in the number of shares outstanding in our basic earnings per share calculations using the two-class method. All of our restricted common shares are currently participating securities. Under the two-class method, earnings per common share is computed by dividing the sum of distributed earnings allocated to common shareholders and undistributed earnings allocated to common shareholders by the weighted average number of common shares outstanding for the period. In applying the two-class method, distributed and undistributed earnings are allocated to both common shares and restricted common shares based on the total weighted average shares outstanding during the period. Because the holders of the participating restricted common shares were not contractually required to share in the Company’s losses, in applying the two-class method to compute the basic and diluted net loss per common share, no allocation to restricted common shares was made for the three months ended September 30, 2015. Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Weighted average shares: Common shares outstanding 80,566,400 80,389,996 80,565,754 80,389,131 Restricted common shares 645,427 600,581 604,179 581,932 Total weighted average shares 81,211,827 80,990,577 81,169,933 80,971,063 Percentage of weighted average shares: Common shares outstanding 99.21 % 99.26 % 99.26 % 99.28 % Restricted common shares 0.79 % 0.74 % 0.74 % 0.72 % Total 100.00 % 100.00 % 100.00 % 100.00 % The calculations of both basic and diluted earnings per share are as follows: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Earnings (loss) per share – Basic: Net income (loss) $ (13,989 ) $ 19,151 $ 71,088 $ 28,064 Less: Distributed and undistributed earnings allocated to restricted common shares (a) — (142 ) (529 ) (202 ) Earnings (loss) available to common shareholders – Basic $ (13,989 ) $ 19,009 $ 70,559 $ 27,862 Weighted average common shares outstanding – Basic 80,566,400 80,389,996 80,565,754 80,389,131 Earnings (loss) per common share – Basic $ (0.17 ) $ 0.24 $ 0.88 $ 0.35 Earnings (loss) per share – Diluted: Net income (loss) $ (13,989 ) $ 19,151 $ 71,088 $ 28,064 Less: Distributed and undistributed earnings allocated to restricted common shares (a) — (142 ) (529 ) (202 ) Earnings (loss) available to common shareholders – Diluted $ (13,989 ) $ 19,009 $ 70,559 $ 27,862 Weighted average common shares outstanding – Basic 80,566,400 80,389,996 80,565,754 80,389,131 Effect of dilutive shares (b) — — — — Weighted average common shares outstanding – Diluted 80,566,400 80,389,996 80,565,754 80,389,131 Earnings (loss) per common share – Diluted $ (0.17 ) $ 0.24 $ 0.88 $ 0.35 (a) For the three months ended September 30, 2014 , distributed and undistributed earnings to restricted shares is 0.74% of net income. For the nine months ended September 30, 2015 and 2014 , distributed and undistributed earnings to restricted shares is 0.74% and 0.72% of net income, respectively. The amount of restricted share forfeitures for all periods present is immaterial to the allocation of distributed and undistributed earnings. (b) For the three and nine months ended September 30, 2015 and 2014 , we had no dilutive shares.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income taxes have been provided for based upon the tax laws and rates in countries in which our operations are conducted and income is earned. The Company received an assurance from the Bermuda Minister of Finance that it would be exempted from local income, withholding and capital gains taxes until March 2035. Consequently, the provision for income taxes relates to income earned by certain subsidiaries of the Company which are located in, or earn income in, jurisdictions that impose income taxes, primarily Ireland, Singapore and the United States. The sources of income (loss) from continuing operations before income taxes and earnings of unconsolidated equity method investment for the three and nine months ended September 30, 2015 and 2014 were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 U.S. operations $ 597 $ 772 $ 1,817 $ 2,293 Non-U.S. operations (13,434 ) 20,936 76,745 34,798 Total $ (12,837 ) $ 21,708 $ 78,562 $ 37,091 All of our aircraft-owning subsidiaries that are recognized as corporations for U.S. tax purposes are non-U.S. corporations. These non-U.S. subsidiaries generally earn income from sources outside the United States and typically are not subject to U.S. federal, state or local income taxes unless they operate within the U.S., in which case they may be subject to federal, state and local income taxes. The aircraft owning subsidiaries resident in Ireland, Mauritius and Singapore are subject to tax in those respective jurisdictions. We have a U.S. based subsidiary which provides management services to our non-U.S. subsidiaries and is subject to U.S. federal, state and local income taxes. We also have Ireland and Singapore based subsidiaries which provide management services to our non-U.S. subsidiaries and are subject to tax in those respective jurisdictions. The consolidated income tax expense for the three and nine months ended September 30, 2015 and 2014 was determined based upon estimates of the Company’s consolidated effective income tax rates for the years ending December 31, 2015 and 2014, respectively. The Company’s effective tax rate for the three and nine months ended September 30, 2015 was 21.1% and 15.3% respectively, compared to 16.0% and 29.5% for the three and nine months ended September 30, 2014 , respectively. Movements in the effective tax rates are generally caused by changes in the proportion of the Company’s pre-tax earnings in taxable and non-tax jurisdictions. For the three and nine months ended September 30, 2015 , the interim period effective tax rate reflects impairments of $78,403 and $102,358 , respectively, which resulted in a higher effective tax rate. For the nine months ended September 30, 2014 , the interim period effective tax rate reflects the loss on extinguishment of debt in the amount of $36,570 related to Bermuda operations, which was treated as a discrete item with no tax benefit. Differences between statutory income tax rates and our effective income tax rates applied to pre-tax income consisted of the following: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Notional U.S. federal income tax expense (benefit) at the statutory rate $ (4,493 ) $ 7,598 $ 27,497 $ 12,982 U.S. state and local income tax, net 57 57 167 176 Non-U.S. operations: Bermuda 6,696 215 (9,199 ) 6,455 Ireland 2,500 (2,411 ) (407 ) (3,163 ) Singapore (1,385 ) (1,418 ) (4,116 ) (3,895 ) Other (860 ) (692 ) (2,439 ) (2,061 ) Non-deductible expenses in the U.S. 205 146 566 464 Other (11 ) (11 ) (32 ) (33 ) Income tax provision $ 2,709 $ 3,484 $ 12,037 $ 10,925

Interest, Net

Interest, Net	9 Months Ended
Interest, Net	Sep. 30, 2015
Interest Income (Expense), Net [Abstract]
Interest Net	Interest, Net The following table shows the components of interest, net: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Interest on borrowings, net settlements on interest rate derivatives, and other liabilities $ 51,428 $ 44,820 $ 153,076 $ 144,677 Hedge ineffectiveness losses 215 (4 ) 509 55 Amortization of interest rate derivatives related to deferred losses 5,006 8,549 19,349 26,730 Amortization of deferred financing fees and debt discount 3,746 3,506 11,211 10,493 Interest Expense 60,395 56,871 184,145 181,955 Less interest income (14 ) (77 ) (82 ) (404 ) Interest, net $ 60,381 $ 56,794 $ 184,063 $ 181,551

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies On June 12, 2015, Aircastle entered into a purchase agreement with Embraer S.A. (“Embraer”) under which we agreed to acquire 25 new E-Jet E2 aircraft with purchase rights for an additional 25 E-Jet E2 aircraft. Deliveries of the 25 aircraft are scheduled to begin in 2018 for the E190-E2 aircraft and 2019 for the E195-E2 aircraft with the last delivery scheduled in March 2021. At September 30, 2015 , the table below includes $142,170 of progress payments, which begin in May 2016. At September 30, 2015 , we had commitments to acquire 34 aircraft, including the above referenced 25 Embraer E-2 aircraft, for $1,336,950 . Commitments, including contractual price escalations and other adjustments, for these aircraft at September 30, 2015 , net of amounts already paid, are as follows: Year Ending December 31, Amount Remainder of 2015 $ 130,500 2016 132,122 2017 170,252 2018 258,130 2019 293,267 Thereafter 352,679 Total $ 1,336,950

Other Assets

Other Assets	9 Months Ended
Other Assets	Sep. 30, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets The following table describes the principal components of other assets on our consolidated balance sheet as of: September 30, December 31, Deferred federal income tax asset $ 1,072 $ 567 Lease incentives and lease premiums, net of amortization of $29,813 and $26,477, respectively 96,214 75,587 Flight equipment held for sale 5,212 7,455 Other assets 28,733 21,841 Total other assets $ 131,231 $ 105,450

Accounts Payable, Accrued Expen

Accounts Payable, Accrued Expenses and Other Liabilities	9 Months Ended
Accounts Payable, Accrued Expenses and Other Liabilities	Sep. 30, 2015
Payables and Accruals [Abstract]
Accounts Payable, Accrued Expenses and Other Liabilities	Accounts Payable, Accrued Expenses and Other Liabilities The following table describes the principal components of accounts payable, accrued expenses and other liabilities recorded on our consolidated balance sheet as of: September 30, December 31, Accounts payable and accrued expenses $ 38,561 $ 40,765 Deferred federal income tax liability 36,416 37,340 Accrued interest payable 51,728 27,795 Lease discounts, net of amortization of $16,775 and $9,247, respectively 25,071 32,084 Fair value of derivative liabilities 2,433 2,879 Total accounts payable, accrued expenses and other liabilities $ 154,209 $ 140,863

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Notes)	9 Months Ended
Accumulated Other Comprehensive Income (Notes)	Sep. 30, 2015
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The following table describes the principal components of accumulated other comprehensive loss recorded on our consolidated balance sheet as of: Changes in accumulated other comprehensive loss by component (a) Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Beginning balance $ (23,681 ) $ (57,342 ) $ (38,460 ) $ (75,905 ) Amount recognized in other comprehensive loss on derivatives, net of tax expense of $10 and $7 for the three months and tax expense of $10 and $728 for the nine months ended September 30, 2015 and 2014, respectively (545 ) 509 (1,940 ) (3,068 ) Amounts reclassified from accumulated other comprehensive loss into income, net of tax benefit of $7 and expense of $14 for the three months and tax expense of $16 and $97 for the nine months ended September 30, 2015 and 2014, respectively 5,823 9,683 21,997 31,823 Net current period other comprehensive income 5,278 10,192 20,057 28,755 Ending balance $ (18,403 ) $ (47,150 ) $ (18,403 ) $ (47,150 ) (a) All amounts are net of tax. Amounts in parentheses indicate debits. Reclassifications from accumulated other comprehensive loss (a) Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Amount of effective amortization of net deferred interest rate derivative losses (b) $ 5,006 $ 8,549 $ 19,349 $ 26,730 Effective amount of net settlements of interest rate derivatives, net of tax benefit of $7 and expense of $14 for the three months and tax expense of $16 and $97 for the nine months ended September 30, 2015 and 2014, respectively (b) 817 1,134 2,648 5,093 Amount of loss reclassified from accumulated other comprehensive loss into income (c) $ 5,823 $ 9,683 $ 21,997 $ 31,823 (a) All amounts are net of tax. (b) Included in interest expense. (c) This represents the effective amounts of actual cash paid related to the net settlements of the interest rate derivatives plus any effective amortization of net deferred interest rate derivative losses. At September 30, 2015 , the amount of deferred net loss expected to be reclassified from OCI into interest expense over the next twelve months related to our terminated interest rate derivatives is $12,883 , of which $1,154 relates to Senior Notes due 2017 and 2020 interest rate derivatives, $7,547 relates to Senior Notes due 2018 interest rate derivatives, $2,865 relates to ECA Term Financings for New A330 Aircraft, and $1,317 relates to other financings. At September 30, 2015 , the amount of loss expected to be reclassified from OCI into interest expense over the next twelve months related to net interest settlements on active interest rate derivatives was $1,987 .

Summary of Significant Accoun24

Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2015
Accounting Policies [Abstract]
Organization and Basis of Presentation	Aircastle is a holding company that conducts its business through subsidiaries. Aircastle directly or indirectly owns all of the outstanding common shares of its subsidiaries. The consolidated financial statements presented are prepared in accordance with U.S. generally accepted accounting principles (“US GAAP”). We operate in one segment. The accompanying consolidated financial statements are unaudited and have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial reporting and, in our opinion, reflect all adjustments, including normal recurring items, which are necessary to present fairly the results for interim periods. Operating results for the periods presented are not necessarily indicative of the results that may be expected for the entire year. Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with US GAAP have been omitted in accordance with the rules and regulations of the SEC; however, we believe that the disclosures are adequate to make information presented not misleading. These financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 .
Principles of Consolidation	The consolidated financial statements include the accounts of Aircastle and all of its subsidiaries. Aircastle consolidates seven Variable Interest Entities (“VIEs”) of which Aircastle is the primary beneficiary. All intercompany transactions and balances have been eliminated in consolidation. We consolidate VIEs in which we have determined that we are the primary beneficiary. We use judgment when deciding (a) whether an entity is subject to consolidation as a VIE, (b) who the variable interest holders are, (c) the potential expected losses and residual returns of the variable interest holders, and (d) which variable interest holder is the primary beneficiary. When determining which enterprise is the primary beneficiary, we consider (1) the entity’s purpose and design, (2) which variable interest holder has the power to direct the activities that most significantly impact the entity’s economic performance, and (3) the obligation to absorb losses of the entity or the right to receive benefits from the entity that could potentially be significant to the VIE. When certain events occur, we reconsider whether we are the primary beneficiary of VIEs. We do not reconsider whether we are a primary beneficiary solely because of operating losses incurred by an entity.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. While Aircastle believes that the estimates and related assumptions used in the preparation of the consolidated financial statements are appropriate, actual results could differ from those estimates.
New Accounting Pronouncements, Policy [Policy Text Block]	Proposed Accounting Pronouncements In May 2013, the FASB issued re-exposure draft, “Leases” (the “Lease Re-ED”), which would replace the existing guidance in the Accounting Standards Codification (“ASC”) 840 (“ASC 840”), Leases . In March 2014, the FASB decided that the accounting for leases by lessors would basically remain unchanged from the concepts existing in current ASC 840 accounting. In addition, the FASB decided that a lessor should be precluded from recognizing selling profit and revenue at lease commencement for any sales-type or direct finance lease that does not transfer control of the underlying asset to the lessee. This requirement aligns the notion of what constitutes a sale in the lessor accounting guidance with that in the forthcoming revenue recognition standard, which evaluates whether a sale has occurred from the customer’s perspective. We anticipate that the final standard may have an effective date no earlier than 2018. We believe that when and if the proposed guidance becomes effective, it will not have a material impact on the Company’s consolidated financial statements. On May 28, 2014, the FASB and the International Accounting Standards Board (the “IASB”) (collectively, the Boards), jointly issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606). Lease contracts within the scope of ASC 840, Leases , are specifically excluded from ASU No. 2014-09. The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which a company expects to be entitled in exchange for those goods or services. The standard is effective for public entities beginning after December 15, 2017. The standard allows for either “full retrospective” adoption, meaning the standard is applied to all of the periods presented, or “modified retrospective” adoption, meaning the standard is applied only to the most current period presented in the financial statements. We are evaluating the effect that ASU 2014-09 will have on our consolidated financial statements and related disclosures. The Company is currently evaluating the impact of the ASU on its consolidated financial statements and related disclosures. On August 27, 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements - Going Concern (Subtopic 205-40). The standard requires management of public companies to evaluate whether there is substantial doubt about the entity’s ability to continue as a going concern and, if so, disclose that fact. Management should evaluate whether there are conditions or events, considered in the aggregate, that raises substantial doubt about the entity’s ability to continue as a going concern within one year after the date that the financial statements are issued (or available to be issued, when applicable). The standard is effective for annual periods ending after December 15, 2016 and interim periods thereafter, and early adoption is permitted. We do not believe the standard will have a material impact on our consolidated financial statements and related disclosures when adopted.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
Fair Value Measurements (Tables)	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair value assets and liabilities measured on recurring basis	The following tables set forth our financial assets and liabilities as of September 30, 2015 and December 31, 2014 that we measured at fair value on a recurring basis by level within the fair value hierarchy. Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to their fair value measurement. Fair Value Measurements at September 30, 2015 Using Fair Value Hierarchy Fair Value as of September 30, 2015 Quoted Prices In Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation Technique Assets: Cash and cash equivalents $ 149,041 $ 149,041 $ — $ — Market Restricted cash and cash equivalents 84,258 84,258 — — Market Total $ 233,299 $ 233,299 $ — $ — Liabilities: Derivative liabilities $ 2,433 $ — $ 2,433 $ — Income Fair Value Measurements at December 31, 2014 Using Fair Value Hierarchy Fair Value as of December 31, 2014 Quoted Prices In Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Valuation Technique Assets: Cash and cash equivalents $ 169,656 $ 169,656 $ — $ — Market Restricted cash and cash equivalents 98,884 98,884 — — Market Total $ 268,540 $ 268,540 $ — $ — Liabilities: Derivative liabilities $ 2,879 $ — $ 2,879 $ — Income
Carrying amounts and fair values of financial instruments	The carrying amounts and fair values of our financial instruments at September 30, 2015 and December 31, 2014 are as follows: September 30, 2015 December 31, 2014 Carrying Amount of Asset (Liability) Fair Value of Asset (Liability) Carrying Amount of Asset (Liability) Fair Value of Asset (Liability) Securitization No. 2 $ (229,969 ) $ (226,385 ) $ (391,680 ) $ (376,752 ) Credit Facilities (50,000 ) (50,000 ) (200,000 ) (200,000 ) ECA term financings (415,988 ) (441,218 ) (449,886 ) (471,918 ) Bank financings (653,486 ) (674,706 ) (554,888 ) (560,285 ) Senior Notes (2,700,000 ) (2,820,988 ) (2,200,000 ) (2,300,615 )

Lease Rental Revenues and Fli26

Lease Rental Revenues and Flight Equipment Held for Lease (Tables)	9 Months Ended
	Sep. 30, 2015
Leases [Abstract]
Annual future minimum lease rentals receivable	Minimum future annual lease rentals contracted to be received under our existing operating leases of flight equipment at September 30, 2015 were as follows: Year Ending December 31, Amount Remainder of 2015 $ 182,038 2016 701,166 2017 614,693 2018 535,419 2019 469,377 Thereafter 1,531,375 Total $ 4,034,068
Geographic concentration of lease rental revenue earnings	Geographic concentration of lease rental revenue earned from flight equipment held for lease was as follows: Three Months Ended September 30, Nine Months Ended September 30, Region 2015 2014 2015 2014 Asia and Pacific 43 % 39 % 42 % 40 % Europe 28 % 29 % 28 % 29 % South America 16 % 13 % 15 % 12 % Middle East and Africa 9 % 9 % 9 % 9 % North America 4 % 10 % 6 % 10 % Total 100 % 100 % 100 % 100 %
Revenue attributable to individual countries
Geographic concentration of net book value of flight equipment held for lease	Geographic concentration of net book value of flight equipment (includes net book value of flight equipment held for lease and net investment in finance leases) was as follows: September 30, 2015 December 31, 2014 Region Number of Aircraft Net Book Value % Number of Aircraft Net Book Value % Asia and Pacific 54 42 % 46 40 % Europe 66 27 % 65 29 % South America 18 17 % 13 14 % Middle East and Africa 6 9 % 6 10 % North America 15 5 % 17 7 % Off-lease 1 (1) — % 1 (2) — % Total 160 100 % 148 100 % _______________ (1) Consists of one Boeing 777-200ER aircraft, which we are marketing for lease or sale. (2) Consisted of one Airbus A320-200 aircraft, which was subject to a commitment to lease and was delivered to our customer in February 2015.
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]	The following table sets forth net book value of flight equipment (includes net book value of flight equipment held for lease and net investment in finance leases) attributable to individual countries representing at least 10% of net book value of flight equipment based on each lessee’s principal place of business as of: September 30, 2015 December 31, 2014 Region Net Book Value Net Book Value % Number of Lessees Net Book Value Net Book Value % Number of Lessees Indonesia $ 637,810 11 % 3 $ — — % —

Net Investment in Finance Lea27

Net Investment in Finance Leases (Tables)	9 Months Ended
Net Investment in Finance Leases (Tables)	Sep. 30, 2015
Leases [Abstract]
Schedule Of Components Of Investment In Finance Leases	The following table lists the components of our net investment in finance leases at September 30, 2015 : Amount Total lease payments to be received $ 93,976 Less: Unearned income (37,227 ) Estimated residual values of leased flight equipment (unguaranteed) 64,133 Net investment in finance leases $ 120,882
Schedule of Future Minimum Lease Payments for Capital Leases	At September 30, 2015 , minimum future lease payments on finance leases are as follows: Year Ending December 31, Amount Remainder of 2015 $ 3,842 2016 15,365 2017 14,843 2018 9,715 2019 9,695 Thereafter 40,516 Total $ 93,976

Unconsolidated Equity Method 28

Unconsolidated Equity Method Investment (Tables)	9 Months Ended
Unconsolidated Equity Method Investment (Tables)	Sep. 30, 2015
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	The Company recorded a $6,270 guarantee liability, which is reflected in Maintenance payments on the balance sheet and a $5,400 guarantee liability, which is reflected in Security deposits on the balance sheet. Investment in joint venture at December 31, 2014 $ 46,453 Investment in joint venture 2,994 Earnings from joint venture, net of tax 4,563 Distributions (4,879 ) Investment in joint venture at September 30, 2015 $ 49,131

Secured and Unsecured Debt Fi29

Secured and Unsecured Debt Financings (Tables)	9 Months Ended
Secured and Unsecured Debt Financings (Tables)	Sep. 30, 2015
Debt Disclosure [Abstract]
Outstanding amounts of secured and unsecured term debt financings	The outstanding amounts of our secured and unsecured term debt financings are as follows: At September 30, 2015 At December 31, 2014 Debt Obligation Outstanding Borrowings Number of Aircraft Interest Rate (1) Final Stated Maturity (2) Outstanding Secured Debt Financings: Securitization No. 2 $ 229,969 30 0.51% 06/14/37 $ 391,680 ECA Term Financings 415,988 8 3.02% to 3.96% 12/3/21 to 11/30/24 449,886 Bank Financings 653,486 13 1.21% to 5.09% 10/26/17 to 01/19/26 554,888 Less: Debt Issuance Costs (22,082 ) — (23,323 ) Total secured debt financings, net of debt issuance costs 1,277,361 51 1,373,131 Unsecured Debt Financings: Senior Notes due 2017 500,000 6.75% 04/15/17 500,000 Senior Notes due 2018 400,000 4.625% 12/05/18 400,000 Senior Notes due 2019 500,000 6.250% 12/01/19 500,000 Senior Notes due 2020 300,000 7.625% 04/15/20 300,000 Senior Notes due 2021 500,000 5.125% 03/15/21 500,000 Senior Notes due 2022 500,000 5.50% 02/15/22 — Revolving Credit Facility 50,000 2.44% 05/13/19 200,000 Less: Debt Issuance Costs (32,141 ) (28,544 ) Total unsecured debt financings, net of debt issuance costs 2,717,859 2,371,456 Total secured and unsecured debt financings, net of debt issuance costs $ 3,995,220 $ 3,744,587 (1) Reflects the floating rate in effect at the applicable reset date plus the margin for Securitization No. 2, five of our Bank Financings, and our Revolving Credit Facility. All other financings have a fixed rate. (2) For Securitization No. 2, all cash flows available after expenses and interest are applied to debt amortization. The following Securitization includes a liquidity facility commitment described in the table below: Available Liquidity Facility Liquidity Facility Provider September 30, December 31, Unused Fee Interest Rate on any Advances Securitization No. 2 HSH Nordbank AG $ 65,000 $ 65,000 0.50% 1M Libor + 0.75

Dividends (Tables)

Dividends (Tables)	9 Months Ended
Dividends (Tables)	Sep. 30, 2015
Dividends [Abstract]
Quarterly dividends declared by board of directors	Dividends The following table sets forth the quarterly dividends declared by our board of directors for the periods covered in this report: Declaration Date Dividend per Common Share Aggregate Dividend Amount Record Date Payment Date August 4, 2015 $ 0.220 $ 17,860 August 31, 2015 September 15, 2015 May 4, 2015 $ 0.220 $ 17,863 May 29, 2015 June 15, 2015 February 17, 2015 $ 0.220 $ 17,860 March 6, 2015 March 13, 2015 October 31, 2014 $ 0.220 $ 17,817 November 28, 2014 December 15, 2014 July 28, 2014 $ 0.200 $ 16,201 August 29, 2014 September 12, 2014 May 5, 2014 $ 0.200 $ 16,202 May 30, 2014 June 13, 2014 February 21, 2014 $ 0.200 $ 16,201 March 7, 2014 March 14, 2014 The following table sets forth the quarterly dividends declared by our board of directors for the periods covered in this report: Declaration Date Dividend per Common Share Aggregate Dividend Amount Record Date Payment Date August 4, 2015 $ 0.220 $ 17,860 August 31, 2015 September 15, 2015 May 4, 2015 $ 0.220 $ 17,863 May 29, 2015 June 15, 2015 February 17, 2015 $ 0.220 $ 17,860 March 6, 2015 March 13, 2015 October 31, 2014 $ 0.220 $ 17,817 November 28, 2014 December 15, 2014 July 28, 2014 $ 0.200 $ 16,201 August 29, 2014 September 12, 2014 May 5, 2014 $ 0.200 $ 16,202 May 30, 2014 June 13, 2014 February 21, 2014 $ 0.200 $ 16,201 March 7, 2014 March 14, 2014

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
Earnings Per Share (Tables)	Sep. 30, 2015
Earnings Per Share [Abstract]
Allocation of distributed and undistributed earnings to both common shares and restricted common shares	In applying the two-class method, distributed and undistributed earnings are allocated to both common shares and restricted common shares based on the total weighted average shares outstanding during the period. Because the holders of the participating restricted common shares were not contractually required to share in the Company’s losses, in applying the two-class method to compute the basic and diluted net loss per common share, no allocation to restricted common shares was made for the three months ended September 30, 2015. Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Weighted average shares: Common shares outstanding 80,566,400 80,389,996 80,565,754 80,389,131 Restricted common shares 645,427 600,581 604,179 581,932 Total weighted average shares 81,211,827 80,990,577 81,169,933 80,971,063 Percentage of weighted average shares: Common shares outstanding 99.21 % 99.26 % 99.26 % 99.28 % Restricted common shares 0.79 % 0.74 % 0.74 % 0.72 % Total 100.00 % 100.00 % 100.00 % 100.00 %
Basic and Diluted earnings per share	The calculations of both basic and diluted earnings per share are as follows: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Earnings (loss) per share – Basic: Net income (loss) $ (13,989 ) $ 19,151 $ 71,088 $ 28,064 Less: Distributed and undistributed earnings allocated to restricted common shares (a) — (142 ) (529 ) (202 ) Earnings (loss) available to common shareholders – Basic $ (13,989 ) $ 19,009 $ 70,559 $ 27,862 Weighted average common shares outstanding – Basic 80,566,400 80,389,996 80,565,754 80,389,131 Earnings (loss) per common share – Basic $ (0.17 ) $ 0.24 $ 0.88 $ 0.35 Earnings (loss) per share – Diluted: Net income (loss) $ (13,989 ) $ 19,151 $ 71,088 $ 28,064 Less: Distributed and undistributed earnings allocated to restricted common shares (a) — (142 ) (529 ) (202 ) Earnings (loss) available to common shareholders – Diluted $ (13,989 ) $ 19,009 $ 70,559 $ 27,862 Weighted average common shares outstanding – Basic 80,566,400 80,389,996 80,565,754 80,389,131 Effect of dilutive shares (b) — — — — Weighted average common shares outstanding – Diluted 80,566,400 80,389,996 80,565,754 80,389,131 Earnings (loss) per common share – Diluted $ (0.17 ) $ 0.24 $ 0.88 $ 0.35 (a) For the three months ended September 30, 2014 , distributed and undistributed earnings to restricted shares is 0.74% of net income. For the nine months ended September 30, 2015 and 2014 , distributed and undistributed earnings to restricted shares is 0.74% and 0.72% of net income, respectively. The amount of restricted share forfeitures for all periods present is immaterial to the allocation of distributed and undistributed earnings. (b) For the three and nine months ended September 30, 2015 and 2014 , we had no dilutive shares.

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
Income Taxes (Tables)	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Sources of income from continuing operations before income taxes	The sources of income (loss) from continuing operations before income taxes and earnings of unconsolidated equity method investment for the three and nine months ended September 30, 2015 and 2014 were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 U.S. operations $ 597 $ 772 $ 1,817 $ 2,293 Non-U.S. operations (13,434 ) 20,936 76,745 34,798 Total $ (12,837 ) $ 21,708 $ 78,562 $ 37,091
Analysis of effective income tax rate for continuing operations	Differences between statutory income tax rates and our effective income tax rates applied to pre-tax income consisted of the following: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Notional U.S. federal income tax expense (benefit) at the statutory rate $ (4,493 ) $ 7,598 $ 27,497 $ 12,982 U.S. state and local income tax, net 57 57 167 176 Non-U.S. operations: Bermuda 6,696 215 (9,199 ) 6,455 Ireland 2,500 (2,411 ) (407 ) (3,163 ) Singapore (1,385 ) (1,418 ) (4,116 ) (3,895 ) Other (860 ) (692 ) (2,439 ) (2,061 ) Non-deductible expenses in the U.S. 205 146 566 464 Other (11 ) (11 ) (32 ) (33 ) Income tax provision $ 2,709 $ 3,484 $ 12,037 $ 10,925

Interest, Net (Tables)

Interest, Net (Tables)	9 Months Ended
Interest, Net (Tables)	Sep. 30, 2015
Interest Income (Expense), Net [Abstract]
Components of Interest	The following table shows the components of interest, net: Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Interest on borrowings, net settlements on interest rate derivatives, and other liabilities $ 51,428 $ 44,820 $ 153,076 $ 144,677 Hedge ineffectiveness losses 215 (4 ) 509 55 Amortization of interest rate derivatives related to deferred losses 5,006 8,549 19,349 26,730 Amortization of deferred financing fees and debt discount 3,746 3,506 11,211 10,493 Interest Expense 60,395 56,871 184,145 181,955 Less interest income (14 ) (77 ) (82 ) (404 ) Interest, net $ 60,381 $ 56,794 $ 184,063 $ 181,551

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Long-term Purchase Commitment [Table Text Block]	Commitments, including contractual price escalations and other adjustments, for these aircraft at September 30, 2015 , net of amounts already paid, are as follows: Year Ending December 31, Amount Remainder of 2015 $ 130,500 2016 132,122 2017 170,252 2018 258,130 2019 293,267 Thereafter 352,679 Total $ 1,336,950

Other Assets (Tables)

Other Assets (Tables)	9 Months Ended
Other Assets (Tables)	Sep. 30, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Principal components of other assets	The following table describes the principal components of other assets on our consolidated balance sheet as of: September 30, December 31, Deferred federal income tax asset $ 1,072 $ 567 Lease incentives and lease premiums, net of amortization of $29,813 and $26,477, respectively 96,214 75,587 Flight equipment held for sale 5,212 7,455 Other assets 28,733 21,841 Total other assets $ 131,231 $ 105,450

Accounts Payable, Accrued Exp36

Accounts Payable, Accrued Expenses and Other Liabilities (Tables)	9 Months Ended
	Sep. 30, 2015
Payables and Accruals [Abstract]
Principal components of accounts payable, accrued expenses and other liabilities recorded on our consolidated balance sheet	The following table describes the principal components of accounts payable, accrued expenses and other liabilities recorded on our consolidated balance sheet as of: September 30, December 31, Accounts payable and accrued expenses $ 38,561 $ 40,765 Deferred federal income tax liability 36,416 37,340 Accrued interest payable 51,728 27,795 Lease discounts, net of amortization of $16,775 and $9,247, respectively 25,071 32,084 Fair value of derivative liabilities 2,433 2,879 Total accounts payable, accrued expenses and other liabilities $ 154,209 $ 140,863

Accumulated Other Comprehensi37

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
Accumulated Other Comprehensive Income (Tables)	Sep. 30, 2015
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table describes the principal components of accumulated other comprehensive loss recorded on our consolidated balance sheet as of: Changes in accumulated other comprehensive loss by component (a) Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Beginning balance $ (23,681 ) $ (57,342 ) $ (38,460 ) $ (75,905 ) Amount recognized in other comprehensive loss on derivatives, net of tax expense of $10 and $7 for the three months and tax expense of $10 and $728 for the nine months ended September 30, 2015 and 2014, respectively (545 ) 509 (1,940 ) (3,068 ) Amounts reclassified from accumulated other comprehensive loss into income, net of tax benefit of $7 and expense of $14 for the three months and tax expense of $16 and $97 for the nine months ended September 30, 2015 and 2014, respectively 5,823 9,683 21,997 31,823 Net current period other comprehensive income 5,278 10,192 20,057 28,755 Ending balance $ (18,403 ) $ (47,150 ) $ (18,403 ) $ (47,150 ) (a) All amounts are net of tax. Amounts in parentheses indicate debits.
Reclassification out of Accumulated Other Comprehensive Income	Reclassifications from accumulated other comprehensive loss (a) Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Amount of effective amortization of net deferred interest rate derivative losses (b) $ 5,006 $ 8,549 $ 19,349 $ 26,730 Effective amount of net settlements of interest rate derivatives, net of tax benefit of $7 and expense of $14 for the three months and tax expense of $16 and $97 for the nine months ended September 30, 2015 and 2014, respectively (b) 817 1,134 2,648 5,093 Amount of loss reclassified from accumulated other comprehensive loss into income (c) $ 5,823 $ 9,683 $ 21,997 $ 31,823 (a) All amounts are net of tax. (b) Included in interest expense. (c) This represents the effective amounts of actual cash paid related to the net settlements of the interest rate derivatives plus any effective amortization of net deferred interest rate derivative losses.

Summary of Significant Accoun38

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details)	9 Months Ended
	Sep. 30, 2015Entitysegment
Variable Interest Entity [Line Items]
Number of Operating Segments	1
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of Consolidated Variable Interest Entities \| Entity	7

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Liabilities:
Derivative liabilities	$ 2,433	$ 2,879
Recurring \| Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets:
Cash and cash equivalents	149,041	169,656
Restricted cash and cash equivalents	84,258	98,884
Total	233,299	268,540
Liabilities:
Derivative liabilities		0
Recurring \| Significant Other Observable Inputs (Level 2)
Assets:
Cash and cash equivalents		0
Restricted cash and cash equivalents		0
Total		0
Liabilities:
Derivative liabilities	2,433	2,879
Recurring \| Significant Unobservable Inputs (Level 3)
Assets:
Cash and cash equivalents		0
Restricted cash and cash equivalents		0
Total		0
Liabilities:
Derivative liabilities		0
Recurring \| Estimate of Fair Value Measurement [Member]
Assets:
Cash and cash equivalents	149,041	169,656
Restricted cash and cash equivalents	84,258	98,884
Total	233,299	268,540
Liabilities:
Derivative liabilities	$ 2,433	$ 2,879

Fair Value Measurements (Deta40

Fair Value Measurements (Details 1) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Liability	$ 2,433	$ 2,879
Restricted Cash and Cash Equivalents	84,258	98,884
Cash and Cash Equivalents, at Carrying Value	149,041	169,656	$ 474,338	$ 654,613
Fair Value, Inputs, Level 1 [Member] \| Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Liability		0
Estimate of Fair Value Measurement [Member] \| Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Liability	$ 2,433	$ 2,879

Fair Value Measurements (Deta41

Fair Value Measurements (Details 3) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Secured Debt \| Significant Other Observable Inputs (Level 2) \| Reported Value Measurement \| Securitization No. 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	$ (229,969)	$ (391,680)
Secured Debt \| Significant Other Observable Inputs (Level 2) \| Reported Value Measurement \| Revolving Credit Facility [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	(50,000)	(200,000)
Secured Debt \| Significant Other Observable Inputs (Level 2) \| Reported Value Measurement \| ECA Term Financings {Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	(415,988)	(449,886)
Secured Debt \| Significant Other Observable Inputs (Level 2) \| Reported Value Measurement \| Bank financings
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	(653,486)	(554,888)
Secured Debt \| Significant Other Observable Inputs (Level 2) \| Estimate of Fair Value Measurement [Member] \| Securitization No. 2
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	(226,385)	(376,752)
Secured Debt \| Significant Other Observable Inputs (Level 2) \| Estimate of Fair Value Measurement [Member] \| Revolving Credit Facility [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	(50,000)	(200,000)
Secured Debt \| Significant Other Observable Inputs (Level 2) \| Estimate of Fair Value Measurement [Member] \| ECA Term Financings {Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	(441,218)	(471,918)
Secured Debt \| Significant Other Observable Inputs (Level 2) \| Estimate of Fair Value Measurement [Member] \| Bank financings
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	(674,706)	(560,285)
Unsecured Debt \| Quoted Prices In Active Markets for Identical Assets (Level 1) \| Reported Value Measurement \| Senior Notes
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	(2,700,000)	(2,200,000)
Unsecured Debt \| Quoted Prices In Active Markets for Identical Assets (Level 1) \| Estimate of Fair Value Measurement [Member] \| Senior Notes
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	$ (2,820,988)	$ (2,300,615)

Fair Value Measurements (Deta42

Fair Value Measurements (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended		9 Months Ended
Fair Value Measurements (Details Textual) $ in Thousands	Sep. 30, 2015USD ($)Aircraft	Sep. 30, 2014USD ($)Aircraft	Jun. 30, 2015USD ($)Aircraft	Jun. 30, 2014USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)Aircraft	Aug. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]
Property Subject to or Available for Operating Lease, Net	$ 5,885,807			$ 53,777	$ 5,885,807		$ 115,888	$ 5,579,718
Impairment of Aircraft	78,403	$ 20,436			102,358	$ 67,005
Maintenance Revenue	15,726	(4,189)			55,148	35,035
Other revenue	8,555	2,511			$ 10,700	6,763
Fleet Review [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Aircraft	34,575	$ 19,515
Maintenance Revenue	$ 5,858
Fleet Review [Member] \| B747-400 Converted Freighter [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Aircraft with Reduced Cash Flow Forecasts due to Annual Fleet Review \| Aircraft	6
Number of Aircraft Impaired \| Aircraft	4	2
Transactional [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Aircraft			$ 23,955	$ 46,570
Maintenance Revenue			$ 18,234			24,262
Other revenue						137
Lease Incentive Reversal						$ 3,626
Transactional [Member] \| A321-200 [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Number of Aircraft Impaired \| Aircraft	1
Impairment of Aircraft	$ 6,058
Maintenance Revenue	7,109
Transactional [Member] \| B-777-200 [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of Aircraft	37,770
Other revenue	$ 1,200
Transactional [Member] \| McDonnell Douglas MD-11F Freighter Aircraft [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Number of Aircraft Impaired \| Aircraft			2
Transactional [Member] \| B-737-800 [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Number of Aircraft Impaired \| Aircraft			1
Transactional [Member] \| B747-400 Converted Freighter [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Number of Aircraft Impaired \| Aircraft						3
Transactional [Member] \| B-737 Classic [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Number of Aircraft Impaired \| Aircraft						1
B747-400 Converted Freighter [Member] \| Maximum [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment, Useful Life					25 years
B747-400 Converted Freighter [Member] \| Minimum [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment, Useful Life					21 years

Lease Rental Revenues and Fli43

Lease Rental Revenues and Flight Equipment Held for Lease (Details) $ in Thousands	Sep. 30, 2015USD ($)
Annual future minimum lease rentals receivable
Remainder of 2015	$ 182,038
2,014	701,166
2,015	614,693
2,016	535,419
2,017	469,377
Thereafter	1,531,375
Total	$ 4,034,068

Lease Rental Revenues and Fli44

Lease Rental Revenues and Flight Equipment Held for Lease (Details 1) - Lease Rental Revenue - Geographic Concentration Risk	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	100.00%	100.00%	100.00%	100.00%
Asia and Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	28.00%	29.00%	28.00%	29.00%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	43.00%	39.00%	42.00%	40.00%
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	4.00%	10.00%	6.00%	10.00%
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	16.00%	13.00%	15.00%	12.00%
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	9.00%	9.00%	9.00%	9.00%

Lease Rental Revenues and Fli45

Lease Rental Revenues and Flight Equipment Held for Lease (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue attributable to individual countries
Revenue	$ 188,038	$ 178,886	$ 550,023	$ 536,452
Maintenance revenue	$ 15,726	$ (4,189)	$ 55,148	$ 35,035

Lease Rental Revenues and Fli46

Lease Rental Revenues and Flight Equipment Held for Lease (Details 3) $ in Thousands	3 Months Ended		9 Months Ended			12 Months Ended
	Sep. 30, 2015USD ($)Aircraft	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)Aircraft		Sep. 30, 2014USD ($)	Dec. 31, 2014Aircraft
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue \| $	$ 188,038	$ 178,886	$ 550,023		$ 536,452
Maintenance Revenue \| $	$ 15,726	(4,189)	$ 55,148		35,035
Number of Aircraft	160		160			148
Number of Offlease Aircraft Marketed for Lease	1		1			1
Other Revenue, Net \| $	$ 8,555	$ 2,511	$ 10,700		$ 6,763
Asia and Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	66		66			65
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	54		54			46
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	15		15			17
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	18		18			13
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Aircraft	6		6			6
Geographic Concentration Risk \| Net Book Value
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			100.00%			100.00%
Geographic Concentration Risk \| Net Book Value \| Asia and Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			27.00%			29.00%
Geographic Concentration Risk \| Net Book Value \| Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			42.00%			40.00%
Geographic Concentration Risk \| Net Book Value \| Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			5.00%			7.00%
Geographic Concentration Risk \| Net Book Value \| North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			17.00%			14.00%
Geographic Concentration Risk \| Net Book Value \| Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			9.00%			10.00%
Geographic Concentration Risk \| Net Book Value \| Off Lease
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration			0.00%	[1]		0.00%

[1]	Consisted of one Airbus A320-200 aircraft, which was subject to a commitment to lease and was delivered to our customer in February 2015.

Lease Rental Revenues and Fli47

Lease Rental Revenues and Flight Equipment Held for Lease (Details 4) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015USD ($)AircraftLessee	Dec. 31, 2014USD ($)AircraftLessee	Aug. 31, 2015USD ($)	Jun. 30, 2014USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Property Subject to or Available for Operating Lease, Net	$ 5,885,807	$ 5,579,718	$ 115,888	$ 53,777
Number of Offlease Aircraft Marketed for Lease \| Aircraft	1	1
INDONESIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Property Subject to or Available for Operating Lease, Net	$ 637,810	$ 0
property subject to or available for operating lease, net (percentage)	11.00%	0.00%
number of lessees \| Lessee	3,000	0
Geographic Concentration Risk \| Net Book Value
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of geographic concentration	100.00%	100.00%

Lease Rental Revenues and Fli48

Lease Rental Revenues and Flight Equipment Held for Lease (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015USD ($)Lessee	Sep. 30, 2014Lessee	Sep. 30, 2015USD ($)Lessee	Sep. 30, 2014Lessee	Dec. 31, 2014USD ($)
Customer Group One
Revenue, Major Customer [Line Items]
Entity-Wide Revenue, Major Customer, Number	2	4	3	3
Other Customers
Revenue, Major Customer [Line Items]
Percentage of lease rental revenues accounted by customers	5.00%	5.00%	5.00%	5.00%
Lease Rental Revenue \| Customer Concentration Risk \| Customer Group One
Revenue, Major Customer [Line Items]
Percentage of geographic concentration	12.00%	24.00%	17.00%	17.00%
Maintenance Payments {Member]
Revenue, Major Customer [Line Items]
Amounts of lease incentive liabilities recorded in the consolidated balance sheets \| $	$ 27,500		$ 27,500		$ 22,833

Net Investment in Finance Lea49

Net Investment in Finance Leases Narrative (Details)	Sep. 30, 2015AircraftCustomer
United States
Capital Leased Assets [Line Items]
Capital Leased Assets, Number of Units	6
Capital Leased Assets, Number of Customers \| Customer	2
CANADA
Capital Leased Assets [Line Items]
Capital Leased Assets, Number of Units	1
GERMANY
Capital Leased Assets [Line Items]
Capital Leased Assets, Number of Units	1

Net Investment in Finance Lea50

Net Investment in Finance Leases Net Investment in Finance Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Capital Leases, Net Investment in Direct Financing Leases [Abstract]
Total lease payments to be received	$ 93,976
Less: Unearned income	(37,227)
Estimated residual values of leased flight equipment (unguaranteed)	64,133
Net investment in finance leases	120,882	$ 106,651
2,015	3,842
2,016	15,365
2,017	14,843
2,018	9,715
2,019	9,695
Thereafter	40,516
Total	$ 93,976

Unconsolidated Equity Method 51

Unconsolidated Equity Method Investment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Unconsolidated equity method investment	$ 49,131		$ 49,131		$ 46,453
Customer Advances and Deposits	338,515		338,515		333,456
Earnings of unconsolidated equity method investment, net of tax	$ 1,557	$ 927	4,563	$ 1,898
Distributions from unconsolidated equity method investment in excess of earnings			$ 0	$ (997)
Related Party Transaction, Percentage Ownership of Company Outstanding Shares	9.70%		9.70%
Equity Method Investee \| OTTP
Unconsolidated equity method investment	$ 49,131		$ 49,131		$ 46,453
Equity Method Investment, Ownership Percentage	30.00%		30.00%
Equity Method Investments Before Earnings			$ 2,994
Earnings of unconsolidated equity method investment, net of tax			4,563
Distributions from unconsolidated equity method investment in excess of earnings			(4,879)
Maintenance Payments {Member] \| Equity Method Investee \| OTTP
Customer Advances and Deposits	$ 6,270		6,270
security deposit [Member] \| Equity Method Investee \| OTTP
Customer Advances and Deposits	$ 5,400		$ 5,400

Variable Interest Entities (Det

Variable Interest Entities (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)AircraftTerm_LoanEntity$ / shares	Dec. 31, 2014USD ($)
Variable Interest Entity [Line Items]
Borrowings from secured financings	$ 1,277,361	$ 1,373,131
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Number of Consolidated Variable Interest Entities \| Entity	7
Number of Aircrafts \| Aircraft	12
ACS Ireland VIEs \| Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Percentage of common shares owned	95.00%
Limitation of trust risk to annual dividend \| $ / shares	$ 2
Number of aircraft transferred to historical cost basis \| Aircraft	4
Combined assets	$ 88,771
Combined Liabilities	64,787
ACS Ireland VIEs \| Variable Interest Entity, Primary Beneficiary \| Class E-1 Securities
Variable Interest Entity [Line Items]
Borrowings from secured financings	$ 40,351
Air Knight VIEs \| Variable Interest Entity, Primary Beneficiary \| ECA Term Financings {Member]
Variable Interest Entity [Line Items]
Type of term loans \| Term_Loan	8
Debt instrument, term	12 years
Net book value of flight equipment held for lease	$ 625,680
Consolidated debt outstanding	$ 401,339

Secured and Unsecured Debt Fi53

Secured and Unsecured Debt Financings (Details) $ in Thousands		9 Months Ended
		Sep. 30, 2015USD ($)Aircraft	Sep. 30, 2014USD ($)	Jan. 26, 2015USD ($)	Dec. 31, 2014USD ($)	Mar. 31, 2014USD ($)
Debt Instrument [Line Items]
Repayments of Long-term Debt		$ 548,359	$ 895,459
Term debt financings assumed in asset acquisitions		0	$ 39,061
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings		$ 1,277,361			$ 1,373,131
Number of Aircraft Financed \| Aircraft		51
Borrowings from unsecured financings, net of debt issuance costs		$ 2,717,859			2,371,456
Total secured and unsecured debt financings		3,995,220			3,744,587
Line of Credit \| Revolving Credit Facility [Member]
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs					200,000
2013 Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity				$ 600,000		$ 450,000
Outstanding amounts of secured and unsecured term debt financings
Line of Credit Facility, Fair Value of Amount Outstanding		$ 50,000
Revolving Credit Facility [Member] \| Line of Credit
Outstanding amounts of secured and unsecured term debt financings
Interest rate	[1]	2.4365%
Securitization No. 2 \| Secured Debt
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings		$ 229,969			391,680
Number of Aircraft Financed \| Aircraft		30
Interest rate	[1]	0.5143%
ECA Term Financings {Member] \| Secured Debt
Outstanding amounts of secured and unsecured term debt financings
Number of Aircraft Financed \| Aircraft		8
ECA Term Financings {Member] \| Notes Payable, Other Payables
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings		$ 415,988			449,886
Minimum effective interest rate	[1]	3.0153%
Maximum effective interest rate	[1]	3.96%
Bank Financings \| Secured Debt
Outstanding amounts of secured and unsecured term debt financings
Number of Aircraft Financed \| Aircraft		13
Bank Financings \| Notes Payable to Banks
Outstanding amounts of secured and unsecured term debt financings
Borrowings from secured financings		$ 653,486			554,888
Minimum effective interest rate	[1]	1.2064%
Maximum effective interest rate	[1]	5.085%
Secured Debt
Outstanding amounts of secured and unsecured term debt financings
Debt Issuance Cost		$ (22,082)			(23,323)
Senior Notes Due 2017 \| Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs		$ 500,000			500,000
Interest rate	[1]	6.75%
Senior Notes Due 2018 with 4.625 Interest Rate \| Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs		$ 400,000			400,000
Interest rate	[1]	4.625%
Senior Notes Due 2019 \| Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs		$ 500,000			500,000
Interest rate	[1]	6.25%
Senior Notes Due 2020 \| Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs		$ 300,000			300,000
Interest rate	[1]	7.625%
Senior Notes due 2021 \| Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs		$ 500,000			500,000
Interest rate	[1]	5.125%
Senior Notes Due 2022 [Member] \| Senior Notes
Outstanding amounts of secured and unsecured term debt financings
Borrowings from unsecured financings, net of debt issuance costs		$ 500,000			0
Interest rate	[1]	5.50%
Unsecured Debt
Outstanding amounts of secured and unsecured term debt financings
Debt Issuance Cost		$ (32,141)			$ (28,544)
London Interbank Offered Rate (LIBOR) [Member] \| Securitization No. 2 \| Secured Debt
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		75.00%

[1]	Reflects the floating rate in effect at the applicable reset date plus the margin for Securitization No. 2, five of our Bank Financings, and our Revolving Credit Facility. All other financings have a fixed rate.

Secured and Unsecured Debt Fi54

Secured and Unsecured Debt Financings (Details 1) $ in Thousands		1 Months Ended	3 Months Ended	9 Months Ended
		May. 31, 2015AircraftBankfinancings	Mar. 31, 2015USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Jun. 30, 2015USD ($)	Jan. 26, 2015USD ($)	Dec. 31, 2014USD ($)	Mar. 31, 2014USD ($)
Debt Instrument [Line Items]
Repayments of Long-term Debt				$ 548,359	$ 895,459
Term debt financings assumed in asset acquisitions				0	$ 39,061
Borrowings from unsecured financings, net of debt issuance costs				$ 2,717,859				$ 2,371,456
Secured Debt \| Securitization No. 2
Debt Instrument [Line Items]
Interest rate	[1]			0.5143%
Secured Debt \| Securitization No. 2 \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate				75.00%
Notes Payable, Other Payables \| ECA Term Financings {Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate				3.57%
Notes Payable, Other Payables \| Bank Financings
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate				3.15%
Debt Instrument, Minimum Net Worth Covenant Required				$ 500,000
Notes Payable to Banks \| Bank Financings, Floating Rate [Member] \| A330-300 [Member]
Debt Instrument [Line Items]
Number of debt instruments \| Bankfinancings		2
Debt Instrument, Face Amount						$ 150,000
Number Of Aircraft \| Aircraft		2
Senior Notes \| Senior Notes Due 2020
Debt Instrument [Line Items]
Interest rate	[1]			7.625%
Borrowings from unsecured financings, net of debt issuance costs				$ 300,000				300,000
Senior Notes \| Senior Notes due 2021
Debt Instrument [Line Items]
Interest rate	[1]			5.125%
Borrowings from unsecured financings, net of debt issuance costs				$ 500,000				500,000
Senior Notes \| Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Interest rate	[1]			5.50%
Borrowings from unsecured financings, net of debt issuance costs				$ 500,000				0
Line of Credit \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowings from unsecured financings, net of debt issuance costs								200,000
Line of Credit \| 2013 Revolving Credit Facility \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity							$ 600,000		$ 450,000
Line of Credit Facility, Fair Value of Amount Outstanding				50,000
Senior Notes Due 2022 [Member] \| Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Interest rate			5.50%
Borrowings from unsecured financings, net of debt issuance costs			$ 500,000
Debt Instrument, Redemption, Period One [Member] \| Senior Notes Due 2022 [Member] \| Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			5000.00%
Debt Instrument, Redemption Price, Percentage			105.50%
Debt Instrument, Redemption, Period Two [Member] \| Senior Notes Due 2022 [Member] \| Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage			101.00%
Maximum [Member] \| Debt Instrument, Redemption, Period One [Member] \| Senior Notes Due 2022 [Member] \| Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed			100.00%
Maximum [Member] \| Debt Instrument, Redemption, Period Two [Member] \| Senior Notes Due 2022 [Member] \| Senior Notes Due 2022 [Member]
Debt Instrument [Line Items]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed			35.00%
HSH Nordbank Ag [Member] \| Secured Debt \| Securitization No. 2
Debt Instrument [Line Items]
Available Liquidity				$ 65,000				$ 65,000
Unused Fee				0.50%

[1]	Reflects the floating rate in effect at the applicable reset date plus the margin for Securitization No. 2, five of our Bank Financings, and our Revolving Credit Facility. All other financings have a fixed rate.

Dividends (Details)

Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 04, 2015	May. 04, 2015	Feb. 18, 2015	Oct. 31, 2014	Jul. 28, 2014	May. 05, 2014	Feb. 21, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Dividends [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.00220	$ 0.00220	$ 0.00220	$ 0.00220	$ 0.00200	$ 0.00200	$ 0.00200	$ 0.22	$ 0.20	$ 0.66	$ 0.60
Aggregate Dividend Amount	$ 17,860	$ 17,863	$ 17,860	$ 17,817	$ 16,201	$ 16,202	$ 16,201

Earnings Per Share (Details)

Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
Earnings Per Share (Details) - shares	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Weighted-average shares:
Common shares outstanding	80,566,400	80,389,996	80,565,754	80,389,131
Restricted common shares	645,427	600,581	604,179	581,932
Total Weighted Average Shares	81,211,827	80,990,577	81,169,933	80,971,063
Percentage of weighted-average shares:
Common shares outstanding	99.21%	99.26%	99.26%	99.28%
Restricted common shares	0.79%	0.74%	0.74%	0.72%
Total	100.00%	100.00%	100.00%	100.00%

Earnings Per Share (Details 1)

Earnings Per Share (Details 1) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Participating Securities, Distributed and Undistributed Earnings of Net Income, Percent		0.79%	0.74%	0.74%	0.72%
Earnings (loss) per share – Basic:
Net income (loss)		$ (13,989)	$ 19,151	$ 71,088	$ 28,064
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic	[1]	0	142	529	202
Earnings (loss) available to common shareholders – Basic		$ (13,989)	$ 19,009	$ 70,559	$ 27,862
Weighted average common shares outstanding – Basic		80,566,400	80,389,996	80,565,754	80,389,131
Earnings (loss) per common share – Basic		$ (0.17)	$ 0.24	$ 0.88	$ 0.35
Earnings (loss) per share – Diluted:
Net income (loss)		$ (13,989)	$ 19,151	$ 71,088	$ 28,064
Earnings (loss) available to common shareholders – Diluted		$ (13,989)	$ 19,009	$ 70,559	$ 27,862
Weighted average common shares outstanding – Basic		80,566,400	80,389,996	80,565,754	80,389,131
Effect of dilutive shares(b)	[2]	0	0	0	0
Weighted average common shares outstanding – Diluted		80,566,400	80,389,996	80,565,754	80,389,131
Earnings (loss) per common share – Diluted		$ (0.17)	$ 0.24	$ 0.88	$ 0.35

[1]	For the three months ended September 30, 2014, distributed and undistributed earnings to restricted shares is 0.74% of net income. For the nine months ended September 30, 2015 and 2014, distributed and undistributed earnings to restricted shares is 0.74% and 0.72% of net income, respectively. The amount of restricted share forfeitures for all periods present is immaterial to the allocation of distributed and undistributed earnings.
[2]	For the three and nine months ended September 30, 2015 and 2014, we had no dilutive shares.

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Sources of income from continuing operations before income taxes
U.S. operations	$ 597	$ 772	$ 1,817	$ 2,293
Non-U.S. operations	(13,434)	20,936	76,745	34,798
Income (loss) from continuing operations before income taxes	$ (12,837)	$ 21,708	$ 78,562	$ 37,091

Income Taxes (Details 1)

Income Taxes (Details 1) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details 1) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Analysis of effective income tax rate for continuing operations
Notional U.S. federal income tax expense (benefit) at the statutory rate	$ (4,493)	$ 7,598	$ 27,497	$ 12,982
U.S. state and local income tax, net	57	57	167	176
Non-deductible expenses in the U.S.	205	146	566	464
Other	(11)	(11)	(32)	(33)
Income tax provision	2,709	3,484	12,037	10,925
Bermuda
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:			(9,199)	6,455
Ireland
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:			(407)	(3,163)
Other
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:			(2,439)	(2,061)
Singapore \| Foreign Tax Authority
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:	(1,385)	(1,418)	$ (4,116)	$ (3,895)
Other \| Foreign Tax Authority
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:	(860)	(692)
Ireland \| Foreign Tax Authority
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:	2,500	(2,411)
Bermuda \| Foreign Tax Authority
Analysis of effective income tax rate for continuing operations
Non-U.S. operations:	$ 6,696	$ 215

Income Taxes Income Taxes (Text

Income Taxes Income Taxes (Textual) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate, Continuing Operations	21.10%	16.00%	15.30%	29.50%
Impairment of Aircraft	$ 78,403	$ 20,436	$ 102,358	$ 67,005
Gains (Losses) on Extinguishment of Debt	$ 0	$ 0	$ 0	$ 36,570

Interest, Net (Details)

Interest, Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Interest, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest Income (Expense), Net [Abstract]
Interest on borrowings, net settlements on interest rate derivatives, and other liabilities	$ 51,428	$ 44,820	$ 153,076	$ 144,677
Hedge ineffectiveness losses	215	(4)	509	55
Cash flow hedges reclassified into earnings	5,006	8,549	19,349	26,730
Amortization of deferred financing costs	3,746	3,506	11,211	10,493
Interest Expense	60,395	56,871	184,145	181,955
Less interest income	(14)	(77)	(82)	(404)
Interest, net	$ 60,381	$ 56,794	$ 184,063	$ 181,551

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Thousands	6 Months Ended
Commitments and Contingencies (Details) $ in Thousands	Jun. 30, 2015Aircraft	Sep. 30, 2015USD ($)Aircraft
Types of Commercial Aircraft [Line Items]
Long-term Purchase Commitment, Minimum Quantity Required \| Aircraft	25
Long Term Purchase Rights \| Aircraft	25
Purchase Obligation, Future Minimum Payments, Remainder of Fiscal Year		$ 130,500
Unrecorded Unconditional Purchase Obligation, Minimum Quantity Required \| Aircraft		34
Unrecorded Unconditional Purchase Obligation		$ 1,336,950
Purchase Obligation, Due in Second Year		132,122
Purchase Obligation, Due in Third Year		170,252
Purchase Obligation, Due in Fourth Year		258,130
Purchase Obligation, Due in Fifth Year		293,267
Purchase Obligation, Due after Fifth Year		352,679
Purchase Obligation		1,336,950
Pre-Delivery Payments [Member]
Types of Commercial Aircraft [Line Items]
Purchase Obligation		$ 142,170

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Principal components of other assets
Deferred federal income tax asset	$ 1,072	$ 567
Lease incentives and lease premiums, net of amortization of $29,813 and $26,477, respectively	96,214	75,587
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	5,212	7,455
Other assets	28,733	21,841
Total other assets	131,231	105,450
Amortization of lease incentives and lease premiums	$ 29,813	$ 26,477

Accounts Payable, Accrued Exp64

Accounts Payable, Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Accounts payable and accrued expenses	$ 38,561	$ 40,765
Deferred federal income tax liability	36,416	37,340
Accrued interest payable	51,728	27,795
Lease discounts, net of amortization of $16,775 and $9,247, respectively	25,071	32,084
Derivative Liability	2,433	2,879
Total accounts payable, accrued expenses and other liabilities	154,209	140,863
Deferred Revenue, Leases, Accumulated Amortization	$ 16,775	$ 9,247

Accumulated Other Comprehensi65

Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014		Sep. 30, 2015	Sep. 30, 2014		Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Derivative Liability	$ 2,433			$ 2,433			$ 2,879
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance				(38,460)
Net current period other comprehensive income	5,278	$ 10,192		20,057	$ 28,755
Ending balance	(18,403)			(18,403)
Tax Expense from Amount Recognized in Other Comprehensive Income Related to Derivatives	3	21		26	825
Interest Expense	60,395	56,871		184,145	181,955
Terminated Interest Rate Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest Rate, Designated Derivatives, Deferred Gain or Loss Expected to be Amortized In Next Twelve Months				12,883
Interest Rate Contract
Accumulated Other Comprehensive Income [Roll Forward]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred				1,987
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges Amortization [Member] \| Interest Rate Contract \| Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income [Roll Forward]
Interest Expense	5,006	8,549		19,349	26,730
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] \| Interest Rate Contract
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(545)	509		(1,940)	(3,068)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	5,823	9,683		21,997	31,823
Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(23,681)	(57,342)		(38,460)	(75,905)
Net current period other comprehensive income	5,278	10,192	[1]	20,057	28,755	[1]
Ending balance	(18,403)	(47,150)		(18,403)	(47,150)
Tax Expense from Amount Recognized in Other Comprehensive Income Related to Derivatives	10	7		10	728
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] \| Interest Rate Contract \| Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	5,823	9,683		21,997	31,823
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges, Net Settlements \| Interest Rate Contract \| Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income [Roll Forward]
Tax Expense from Amount Reclassified from Accumulated Other Comprehensive Income into Income	(7)	14		16	97
Interest Expense	$ 817	$ 1,134		2,648	$ 5,093
Term Financing No.1 -- terminated 2012 [Member] \| Terminated Interest Rate Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest Rate, Designated Derivatives, Deferred Gain or Loss Expected to be Amortized In Next Twelve Months				1,154
Securitization Number One [Member] \| Terminated Interest Rate Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest Rate, Designated Derivatives, Deferred Gain or Loss Expected to be Amortized In Next Twelve Months				7,547
ECA Term Financings {Member] \| Terminated Interest Rate Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest Rate, Designated Derivatives, Deferred Gain or Loss Expected to be Amortized In Next Twelve Months				2,865
Other Financings [Member] \| Terminated Interest Rate Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest Rate, Designated Derivatives, Deferred Gain or Loss Expected to be Amortized In Next Twelve Months				$ 1,317

[1]	All amounts are net of tax. Amounts in parentheses indicate debits.