Air Lease (AL) 10-K27 Feb 142013 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Jun. 30, 2013	Feb. 27, 2014	Feb. 27, 2014
	Dec. 31, 2013	Jun. 30, 2013	Class A Common Stock	Class B Non-Voting Common Stock
Entity Registrant Name	'AIR LEASE CORP	'	'	'
Entity Central Index Key	'0001487712	'	'	'
Document Type	'10-K	'	'	'
Document Period End Date	31-Dec-13	'	'	'
Amendment Flag	'false	'	'	'
Current Fiscal Year End Date	'--12-31	'	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'	'
Entity Voluntary Filers	'No	'	'	'
Entity Current Reporting Status	'Yes	'	'	'
Entity Filer Category	'Large Accelerated Filer	'	'	'
Entity Public Float	'	$2,127,913,320	'	'
Entity Common Stock, Shares Outstanding	'	'	101,822,676	0
Document Fiscal Year Focus	'2013	'	'	'
Document Fiscal Period Focus	'FY	'	'	'

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets	'	'
Cash and cash equivalents	$270,173	$230,089
Restricted cash	87,308	106,307
Flight equipment subject to operating leases	8,234,315	6,598,898
Less accumulated depreciation	-621,180	-347,035
Flight equipment subject to operating leases, net	7,613,135	6,251,863
Deposits on flight equipment purchases	1,075,023	564,718
Deferred debt issue costs-less accumulated amortization of $51,578 and $32,288 as of December 31, 2013 and December 31, 2012, respectively	90,249	74,219
Other assets	196,716	126,428
Total assets	9,332,604	7,353,624
Liabilities and Shareholders' Equity	'	'
Accrued interest and other payables	131,223	90,169
Debt financing	5,853,317	4,384,732
Security deposits and maintenance reserves on flight equipment leases	569,847	412,223
Rentals received in advance	61,520	41,137
Deferred tax liability	193,263	92,742
Total liabilities	6,809,170	5,021,003
Shareholders' Equity	'	'
Preferred Stock, $0.01 par value; 50,000,000 shares authorized; no shares issued or outstanding	'	'
Paid-in capital	2,209,566	2,198,501
Retained earnings	312,859	133,111
Total shareholders' equity	2,523,434	2,332,621
Total liabilities and shareholders' equity	9,332,604	7,353,624
Class A Common Stock	'	'
Shareholders' Equity	'	'
Common Stock	1,009	991
Total shareholders' equity	1,009	991
Class B Non-Voting Common Stock	'	'
Shareholders' Equity	'	'
Common Stock	'	18
Total shareholders' equity	'	$18

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred debt issue costs, accumulated amortization (in dollars)	$51,578	$32,288
Preferred Stock, par value (in dollars per share)	$0.01	$0.01
Preferred Stock, shares authorized	50,000,000	50,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues	'	'	'
Rental of flight equipment	$836,516	$645,853	$332,719
Aircraft sales, trading and other	22,159	9,893	4,022
Total revenues	858,675	655,746	336,741
Expenses	'	'	'
Interest	168,743	130,419	44,862
Amortization of discounts and deferred debt issue costs	23,627	16,994	9,481
Extinguishment of debt	'	'	3,349
Interest expense	192,370	147,413	57,692
Depreciation of flight equipment	280,037	216,219	112,307
Selling, general and administrative	71,212	56,453	44,559
Stock-based compensation	21,614	31,688	39,342
Total expenses	565,233	451,773	253,900
Income before taxes	293,442	203,973	82,841
Income tax expense	-103,031	-72,054	-29,609
Net income	$190,411	$131,919	$53,232
Net income per share of Class A and Class B Common Stock:	'	'	'
Basic (in dollars per share)	$1.88	$1.31	$0.59
Diluted (in dollars per share)	$1.80	$1.28	$0.59
Weighted-average shares outstanding:	'	'	'
Basic (in shares)	101,529,137	100,991,871	89,592,945
Diluted (in shares)	108,963,550	107,656,463	90,416,346

CONSOLIDATED_STATEMENTS_OF_SHA

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Total	Paid-in Capital	Retained Earnings	Class A Common Stock	Class B Non-Voting Common Stock
In Thousands, except Share data, unless otherwise specified	Total	Paid-in Capital	Retained Earnings	Class A Common Stock	Class B Non-Voting Common Stock
Balance at Dec. 31, 2010	$1,224,935	$1,276,321	($52,040)	$636	$18
Balance (in shares) at Dec. 31, 2010	'	'	'	63,563,810	1,829,339
Increase (Decrease) in Shareholders' Equity	'	'	'	'	'
Class A Common Stock issuance	867,230	866,882	'	348	'
Class A Common Stock issuance (in shares)	'	'	'	34,825,470	'
Issuance of restricted stock units (in shares)	'	'	'	843,975	'
Tax withholdings on stock based compensation	-8,456	-8,456	'	'	'
Tax withholdings on stock based compensation (in shares)	'	'	'	-348,124	'
Stock based compensation	39,342	39,342	'	'	'
Net income	53,232	'	53,232	'	'
Balance at Dec. 31, 2011	2,176,283	2,174,089	1,192	984	18
Balance (in shares) at Dec. 31, 2011	'	'	'	98,885,131	1,829,339
Increase (Decrease) in Shareholders' Equity	'	'	'	'	'
Class A Common Stock issuance	-97	-97	'	'	'
Exercise of incentive stock options	140	133	'	7	'
Exercise of incentive stock options (in shares)	'	'	'	7,000	'
Issuance of restricted stock units (in shares)	'	'	'	890,110	'
Tax withholdings on stock based compensation	-7,312	-7,312	'	'	'
Tax withholdings on stock based compensation (in shares)	'	'	'	-364,243	'
Stock based compensation	31,688	31,688	'	'	'
Net income	131,919	'	131,919	'	'
Balance at Dec. 31, 2012	2,332,621	2,198,501	133,111	991	18
Balance (in shares) at Dec. 31, 2012	'	'	'	99,417,998	1,829,339
Increase (Decrease) in Shareholders' Equity	'	'	'	'	'
Exercise of incentive stock options (in shares)	'	'	'	167	'
Exercise of warrants (in shares)	'	'	'	63,481	'
Issuance of restricted stock units (in shares)	'	'	'	959,873	'
Common Stock exchanged	'	'	'	18	-18
Common Stock exchanged (in shares)	'	'	'	1,829,339	-1,829,339
Cash dividends declared ($0.105 per share)	-10,663	'	-10,663	'	'
Tax benefits from stock-based compensation arrangements	2,115	2,115	'	'	'
Tax withholdings on stock based compensation	-12,664	-12,664	'	'	'
Tax withholdings on stock based compensation (in shares)	'	'	'	-448,182	'
Stock based compensation	21,614	21,614	'	'	'
Net income	190,411	'	190,411	'	'
Balance at Dec. 31, 2013	$2,523,434	$2,209,566	$312,859	$1,009	'
Balance (in shares) at Dec. 31, 2013	'	'	'	101,822,676	'

CONSOLIDATED_STATEMENTS_OF_SHA1

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2013
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY	'
Cash dividends declared per share (in dollars per share)	$0.11

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities	'	'	'
Net income	$190,411	$131,919	$53,232
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Depreciation of flight equipment	280,037	216,219	112,307
Stock-based compensation	21,614	31,688	39,342
Deferred taxes	102,636	72,050	29,567
Tax benefits from stock-based compensation arrangements	-2,115	'	'
Amortization of discounts and deferred debt issue costs	23,627	16,994	9,481
Extinguishment of debt	'	'	3,349
Changes in operating assets and liabilities:	'	'	'
Other assets	-21,887	-18,758	-17,438
Accrued interest and other payables	39,507	25,797	19,347
Rentals received in advance	20,383	15,120	17,979
Net cash provided by operating activities	654,213	491,029	267,166
Investing Activities	'	'	'
Acquisition of flight equipment under operating lease	-1,329,619	-1,899,231	-2,529,901
Payments for deposits on flight equipment purchases	-828,839	-418,278	-360,587
Proceeds from aircraft sales and trading	97,748	47,490	'
Acquisition of furnishings, equipment and other assets	-125,184	-74,905	-86,668
Net cash used in investing activities	-2,185,894	-2,344,924	-2,977,156
Financing Activities	'	'	'
Issuance of common stock and warrants	'	43	867,230
Cash dividends paid	-7,608	'	'
Tax withholdings on stock-based compensation	-12,664	-7,312	-8,456
Tax benefits from stock-based compensation arrangements	2,115	'	'
Issuance of convertible notes	'	'	193,000
Net change in unsecured revolving facilities	388,000	62,000	238,000
Proceeds from debt financings	1,608,854	2,115,607	1,344,530
Payments in reduction of debt financings	-531,831	-432,129	-84,796
Restricted cash	18,999	-10,150	-47,481
Debt issue costs	-37,535	-42,149	-13,933
Security deposits and maintenance reserve receipts	172,662	142,541	180,862
Security deposits and maintenance reserve disbursements	-29,227	-26,272	-5,982
Net cash provided by financing activities	1,571,765	1,802,179	2,662,974
Net increase (decrease) in cash	40,084	-51,716	-47,016
Cash and cash equivalents at beginning of period	230,089	281,805	328,821
Cash and cash equivalents at end of period	270,173	230,089	281,805
Supplemental Disclosure of Cash Flow Information	'	'	'
Cash paid during the period for interest, including capitalized interest of $32,659, $19,388 and $10,390 for the years ended December 31, 2013, 2012 and December 31, 2011, respectively	188,464	124,731	51,986
Supplemental Disclosure of Noncash Activities	'	'	'
Buyer furnished equipment, capitalized interest and deposits on flight equipment purchases applied to acquisition of flight equipment under operating leases and other assets	410,441	377,892	190,013
Cash dividends declared, not yet paid	3,055	'	'
Net book value of flight equipment under operating leases that was transferred to other assets to record proceeds receivable for the sale of one aircraft and the insured total loss of another aircraft from our operating lease portfolio	$48,991	'	'

CONSOLIDATED_STATEMENTS_OF_CAS1

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
	item
CONSOLIDATED STATEMENTS OF CASH FLOWS	'
Cash paid for interest, capitalized interest	$32,659
Number of aircrafts sold under operating leases	1

Summary_of_significant_account

Summary of significant accounting policies	12 Months Ended
Summary of significant accounting policies	Dec. 31, 2013
Summary of significant accounting policies	'
Summary of significant accounting policies	'

	Note 1. Summary of significant accounting policies

	Organization

	Air Lease Corporation is a leading aircraft leasing company that was founded by aircraft leasing industry pioneer, Steven F. Udvár-Hazy. We are principally engaged in purchasing new commercial jet transport aircraft from Boeing and Airbus. We lease these aircraft to airlines throughout the world to generate attractive returns on equity. As of December 31, 2013 we owned a fleet of 193 aircraft and had 327 aircraft on order with the manufacturers. In addition to our leasing activities, we sell aircraft from our fleet to other leasing companies, financial services companies and airlines. We also provide fleet management services to investors and owners of aircraft portfolios for a management fee.

	Principles of consolidation

	The Company consolidates financial statements of all entities in which we have a controlling financial interest, including the account of any Variable Interest Entity in which we have a controlling financial interest and for which we are the primary beneficiary. All material intercompany balances are eliminated in consolidation.

	Rental of flight equipment

	The Company leases flight equipment principally under operating leases and reports rental income ratably over the life of each lease. Rentals received, but unearned, under the lease agreements are recorded in Rentals received in advance on the Company's Consolidated Balance Sheet until earned. The difference between the rental income recorded and the cash received under the provisions of the lease is included in Lease receivables, as a component of Other assets on the Company's Consolidated Balance Sheet. An allowance for doubtful accounts will be recognized for past-due rentals based on management's assessment of collectability. Management monitors all lessees with past due lease payments and discuss relevant operational and financial issues facing those lessees in order to determine an appropriate allowance for doubtful accounts. In addition, if collection is not reasonably assured, the Company will not recognize rental income for amounts due under the Company's lease contracts and will recognize revenue for such lessees on a cash basis. As of December 31, 2013 and 2012, the Company had no such allowance, and no leases were on a cash basis.

	All of the Company's lease agreements are triple net leases whereby the lessee is responsible for all taxes, insurance, and aircraft maintenance. In the future, we may incur repair and maintenance expenses for off-lease aircraft. We recognize repair and maintenance expense in our Consolidated Statements of Income for all such expenditures. In many operating lease contracts, the lessee is obligated to make periodic payments, which are calculated with reference to the utilization of the airframe, engines and other major life-limited components during the lease. In these leases, we will make a payment to the lessee to compensate the lessee for the cost of the Qualifying Event incurred, up to the maximum of the amount of Maintenance Reserves made by the lessee during the lease term, net of previous reimbursements. These payments are made upon the lessee's presentation of invoices evidencing the completion of such Qualifying Event. The Company records as "Rental of flight equipment" revenue, the portion of Maintenance Reserves that is virtually certain will not be reimbursed to the lessee. Maintenance Reserves payments which we may be required to reimburse to the lessee are reflected in our overhaul reserve liability, as a component of "Security deposits and overhaul reserves on flight equipment leases" in our Consolidated Balance Sheet.

	Lessee-specific modifications are capitalized as initial direct costs and amortized over the term of the lease into rental revenue in our Consolidated Statements of Income.

	Initial direct costs

	The Company records as period costs those internal and other costs incurred in connection with identifying, negotiating and delivering aircraft to the Company's lessees. Amounts paid by us to lessees, or other parties, in connection with the lease transactions are capitalized and amortized as a reduction to lease revenue over the lease term.

	Cash and cash equivalents

	The Company considers cash and cash equivalents to be cash on hand and highly liquid investments with original maturity dates of 90 days or less.

	Restricted cash

	Restricted cash consists of pledged security deposits, maintenance reserves, and rental payments related to secured aircraft financing arrangements.

	Flight equipment

	Flight equipment under operating lease is stated at cost less accumulated depreciation. Purchases, major additions and modifications, and interest on deposits during the construction phase are capitalized. The Company generally depreciates passenger aircraft on a straight-line basis over a 25-year life from the date of manufacture to a 15% residual value. Changes in the assumption of useful lives or residual values for aircraft could have a significant impact on the Company's results of operations and financial condition.

	At the time flight equipment is retired or sold, the cost and accumulated depreciation are removed from the related accounts and the difference, net of proceeds, is recorded as a gain or loss in our Consolidated Statements of Income.

	Management evaluates on a quarterly basis the need to perform an impairment test whenever facts or circumstances indicate a potential impairment has occurred. An assessment is performed whenever events or changes in circumstances indicate that the carrying amount of an aircraft may not be recoverable. Recoverability of an aircraft's carrying amount is measured by comparing the carrying amount of the aircraft to future undiscounted net cash flows expected to be generated by the aircraft. The undiscounted cash flows consist of cash flows from currently contracted leases, future projected lease rates and estimated residual or scrap values for each aircraft. We develop assumptions used in the recoverability analysis based on our knowledge of active lease contracts, current and future expectations of the global demand for a particular aircraft type, and historical experience in the aircraft leasing market and aviation industry, as well as information received from third-party industry sources. The factors considered in estimating the undiscounted cash flows are affected by changes in future periods due to changes in contracted lease rates, economic conditions, technology and airline demand for a particular aircraft type. In the event that an aircraft does not meet the recoverability test, the aircraft will be recorded at fair value in accordance with the Company's Fair Value Policy, resulting in an impairment charge. Our Fair Value Policy is described below under "Fair Value Measurements". As of December 31, 2013 and 2012, no impairment charges have been incurred to date.

	Capitalized interest

	The Company may borrow funds to finance deposits on new flight equipment purchases. The Company capitalizes interest expense on such borrowings. The capitalized amount is calculated using our composite borrowing rate and is recorded as an increase to the cost of the flight equipment on our Consolidated Balance Sheet.

	Fair value measurements

	Fair value is the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company measures the fair value of certain assets on a non-recurring basis, principally our flight equipment, when Generally Accepted Accounting Principles ("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.

	The Company records flight equipment at fair value when we determine the carrying value may not be recoverable. The Company principally uses the income approach to measure the fair value of flight equipment. The income approach is based on the present value of cash flows from contractual lease agreements and projected future lease payments, including contingent rentals, net of expenses, which extend to the end of the aircraft's economic life in its highest and best use configuration, as well as a disposition value based on expectations of market participants. These valuations are considered Level 3 valuations, as the valuations contain significant non-observable inputs.

	Income taxes

	The Company uses the asset and liability method of accounting for income taxes. Under the asset and liability method, deferred income taxes are recognized for the tax consequences of "temporary differences" by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts and the tax basis of existing assets and liabilities. The effect on deferred taxes of a change in the tax rates is recognized in income in the period that includes the enactment date. The Company records a valuation allowance for deferred tax assets when the probability of realization of the full value of the asset is less than 50%. The Company recognizes the impact of a tax position, if that position is more than 50% likely to be sustained on audit, based on the technical merits of the position. Recognized income tax positions are measured at the largest amount that is greater than 50% likely to be realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs.

	The Company recognizes interest and penalties for uncertain tax positions in income tax expense.

	Deferred costs

	The Company incurs debt issue costs in connection with debt financings. Those costs are deferred and amortized over the life of the specific loan using the effective interest method and charged to interest expense. The Company also incurs costs in connection with equity offerings. Such costs are deferred until the equity offering is completed and either netted against the equity raised, or expensed if the equity offering is abandoned.

	Stock-based compensation

	Stock-based compensation cost is measured at the grant date based on the fair value of the award. The Company recognizes compensation costs for shares that are expected to vest, on a straight-line basis, over the requisite service period of the award.

Use of estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Debt_financing

Debt financing	12 Months Ended
Debt financing	Dec. 31, 2013
Debt financing	'
Debt financing	'

	Note 2. Debt financing

	The Company's consolidated debt as of December 31, 2013 and 2012 is summarized below:


			December 31, 2013			December 31, 2012
			(dollars in thousands)
	Unsecured
	Senior notes		$	3,055,620		$	1,775,000
	Revolving credit facilities			808,000			420,000
	Term financings			247,722			248,916
	Convertible senior notes			200,000			200,000


				4,311,342			2,643,916
	Secured
	Warehouse facilities			828,418			1,061,838
	Term financings			654,369			688,601
	Export credit financing			71,539			—


				1,554,326			1,750,439
	Total secured and unsecured debt financing			5,865,668			4,394,355
	Less: Debt discount			(12,351	)		(9,623	)


	Total debt		$	5,853,317		$	4,384,732

	At December 31, 2013, we were in compliance in all material respects with the covenants in our debt agreements, including our financial covenants concerning debt-to-equity, tangible net equity and interest coverage ratios.

	The Company's secured obligations as of December 31, 2013 and 2012 are summarized below:


			December 31, 2013			December 31, 2012
			(dollars in thousands)
	Nonrecourse		$	847,684		$	1,085,941
	Recourse			706,642			664,498


	Total		$	1,554,326		$	1,750,439
	Number of aircraft pledged as collateral			52			55
	Net book value of aircraft pledged as collateral		$	2,454,350		$	2,728,636

	Senior unsecured notes

	As of December 31, 2013, the Company had $3.1 billion in senior unsecured notes outstanding. As of December 31, 2012, the Company had $1.8 billion in senior unsecured notes outstanding.

	During the year ended December 31, 2013, the Company issued $1.3 billion in aggregate principal amount of senior unsecured notes.

	On February 5, 2013, the Company issued $400.0 million in aggregate principal amount of senior unsecured notes due 2020 that bear interest at a rate of 4.75% per annum.

	On June 26, 2013, the Company concluded its offer to exchange up to $151.6 million aggregate principal amount of new notes for any and all of its outstanding 7.375% senior unsecured notes due January 30, 2019 and issued $132.0 million aggregate principal amount of its 5.625% senior notes due 2017 in exchange for $125.4 million aggregate principal amount of the old notes.

	Effective August 26, 2013, the additional interest of 0.50% per annum assessed on the senior unsecured notes due 2017 was eliminated due to the investment grade rating of the notes by S&P.

	On October 1, 2013, the Company issued $185.0 million in aggregate principal amount of senior unsecured notes in a private placement to institutional investors. The notes are comprised of $53.0 million of 3.64% senior unsecured notes due 2016 and $132.0 million of 4.49% senior unsecured notes due 2019.

	On November 19, 2013, the Company issued $700.0 million in aggregate principal amount of senior unsecured notes due 2019 that bear interest at a rate of 3.375% per annum.

	Unsecured revolving credit facilities

	The total amount outstanding under our unsecured revolving credit facilities was $808.0 million and $420.0 million as of December 31, 2013 and December 31, 2012, respectively.

The Company has in place a senior unsecured revolving credit facility (the "Syndicated Unsecured Revolving Credit Facility"), dated May 7, 2013, as amended, which provides us with financing of up to $2.0 billion. The Syndicated Unsecured Revolving Credit Facility accrues interest at a rate of LIBOR plus 1.25% on drawn balances and includes a 0.25% facility fee. The facility will mature in May 2017.

In May 2013, the Company amended its Syndicated Unsecured Revolving Credit Facility. Pursuant to the amendment, we increased the maximum amount we can borrow by $657.0 million to $1.7 billion, extended the availability period from 3 year to 4 years to May 2017, and reduced the pricing from LIBOR plus a margin of 1.75% with no LIBOR floor and an undrawn fee of 0.375% to LIBOR plus 1.45% with no LIBOR floor and a 0.30% facility fee.

In November 2013, the Company increased the maximum amount it can borrow under its Syndicated Unsecured Revolving Credit Facility by an additional $300.0 million to $2.0 billion.

Effective August 26, 2013, the pricing of our Syndicated Unsecured Revolving Credit Facility has been further reduced to LIBOR plus 1.25% with no LIBOR floor and a 0.25% facility fee as a result of the investment grade corporate credit rating obtained from S&P.

Unsecured term financings

From time to time, the Company enters into unsecured term facilities. During 2013, the Company entered into four additional unsecured term facilities aggregating $131.0 million with terms ranging from four to five years and with three of them bearing interest at fixed rates ranging from 3.10% to 3.50% per annum and the fourth bearing interest at a floating rate of LIBOR plus a margin of 1.25% per annum. The outstanding balance on our unsecured term facilities as of December 31, 2013 and December 31, 2012 was $247.7 million and $248.9 million, respectively.

Convertible senior notes

In November 2011, the Company issued $200.0 million in aggregate principal amount of 3.875% convertible senior notes due 2018 (the "Convertible Notes") in an offering exempt from registration under the Securities Act. The Convertible Notes were sold to Qualified Institutional Buyers in reliance upon Rule 144A under the Securities Act. The Convertible Notes are senior unsecured obligations of the Company and bear interest at a rate of 3.875% per annum, payable semi-annually in arrears on June 1 and December 1 of each year, commencing on June 1, 2012. The Convertible Notes are convertible at the option of the holder into shares of our Class A Common Stock at a price of $30.23 per share.

Warehouse facilities

We have a revolving credit facility (the "2010 Warehouse Facility"), dated June 21, 2013, as amended. The 2010 Warehouse Facility, as amended, provides the Company with financing of up to $1.0 billion, modified from the previous facility size of $1.25 billion. The interest rate on the 2010 Warehouse Facility was reduced from LIBOR plus 2.50% to LIBOR plus 2.25% on drawn balances and from 0.75% to 0.50% per annum on undrawn balances and provided a 10% unsecured guarantee on the 2010 Warehouse Facility. The Company is able to draw on the 2010 Warehouse Facility during an availability period that was extended from June 2013 to June 2015. The outstanding drawn balance at the end of the availability period may be converted at our option to an amortizing term loan with a subsequent term out option through 2018, with an interest rate of LIBOR plus 3.00% during the initial three years of the term and margin step-ups during the remaining six months that increase the interest rate to LIBOR plus 4.50%.

As of December 31, 2013, the Company had borrowed $656.8 million under the 2010 Warehouse Facility and pledged 24 aircraft as collateral with a net book value of $985.2 million. As of December 31, 2012, the Company had borrowed $877.7 million under the 2010 Warehouse Facility and pledged 30 aircraft as collateral with a net book value of $1.3 billion. The Company had pledged cash collateral and lessee deposits of $65.4 million and $98.6 million under the 2010 Warehouse Facility as of December 31, 2013 and December 31, 2012, respectively.

In March 2012, we entered into a non-recourse $192.8 million senior secured warehouse facility (the "2012 Warehouse Facility") to refinance a pool of eight aircraft previously financed under the Company's 2010 Warehouse Facility.

As of December 31, 2013, the Company had borrowed $171.6 million under the 2012 Warehouse Facility and pledged eight aircraft as collateral with a net book value of $245.7 million. The Company had pledged cash collateral and lessee deposits of $7.6 million under the 2012 Warehouse Facility as of December 31, 2013. As of December 31, 2012, the Company had borrowed $184.1 million under the 2012 Warehouse Facility and pledged eight aircraft as collateral with a net book value of $256.6 million. The Company had pledged cash collateral and lessee deposits of $5.8 million under the 2012 Warehouse Facility as of December 31, 2012.

Secured term financing

The Company funds some aircraft purchases through secured term financings. Wholly-owned subsidiaries of the Company will borrow through secured bank facilities to purchase an aircraft. The aircraft are then leased by the wholly- owned subsidiaries to airlines. The Company may guarantee the obligations of the wholly-owned subsidiaries under the loan agreements. The loans may be secured by a pledge of the shares of the subsidiary, the aircraft, the lease receivables, security deposits, maintenance reserves or a combination thereof.

During the year ended December 31, 2013, the Company entered into three additional secured term facilities aggregating $135.0 million with terms ranging from six to seven years and with two of them bearing interest at floating rates ranging from LIBOR plus a margin of 2.15% to 2.85% per annum and the third bearing interest at a fixed rate of 4.25% per annum.

In September 2013, the Company amended an existing portfolio of six secured term loans aggregating $168.3 million with one of its lenders. Pursuant to the amendments, we reduced the composite interest rate of the loans by 40 basis-points, extended certain loan maturities and improved the principal amortization profiles of the loans.

As of December 31, 2013, the outstanding balance on our secured term facilities was $654.4 million and we had pledged 18 aircraft as collateral with a net book value of $1.14 billion. The outstanding balance under our secured term facilities as of December 31, 2013 was comprised of $153.9 million fixed rate debt and $505.5 million floating rate debt, with interest rates ranging from 4.25% to 5.36% and LIBOR plus 1.5% to LIBOR plus 3.0%, respectively.

As of December 31, 2012, the outstanding balance on our secured term facilities was $688.6 million and we had pledged 17 aircraft as collateral with a net book value of $1.15 billion. The outstanding balance under our secured term facilities as of December 31, 2012 was comprised of $159.1 million fixed rate debt and $529.5 million floating rate debt, with interest rates ranging from 4.28% to 5.36% and LIBOR plus 1.50% to LIBOR plus 3.59%, respectively.

Export credit financings

In March 2013, the Company issued $76.5 million in secured notes due 2024 guaranteed by the Ex-Im Bank. The notes will mature on August 15, 2024 and will bear interest at a rate of 1.617% per annum. The Company used the proceeds of the offering to refinance a portion of the purchase price of two Boeing 737-800 aircraft and the related premium charged by Ex-Im Bank for its guarantee of the notes.

Maturities

Maturities of debt outstanding as of December 31, 2013 are as follows:


		(dollars in thousands)
Years ending December 31,
2014		$	214,095
2015			264,004
2016			943,637
2017			2,210,251
2018			709,246
Thereafter			1,524,435


Total(1)(2)		$	5,865,668






-1
As of December 31, 2013, the Company had $656.8 million of debt outstanding under the 2010 Warehouse Facility. The Company is able to draw on the facility during an availability period that ends in June 2015 with a subsequent term out option, through 2018 which is the maturity in the schedule above.

-2
As of December 31, 2013, the Company had $808.0 million of debt outstanding under our revolving credit facilities. The outstanding drawn balances may be rolled until the maturity date of each respective facility and have been presented as such in the maturity schedule above.

Interest_expense

Interest expense	12 Months Ended
Interest expense	Dec. 31, 2013
Interest expense	'
Interest expense	'

	Note 3. Interest expense

	The following table shows the components of interest for the years ended December 31, 2013, 2012 and 2011:


		Year ended			Year ended			Year ended
		December 31, 2013			December 31, 2012			December 31, 2011
		(dollars in thousands)
	Interest on borrowings	$	201,402		$	149,807		$	55,252
	Less capitalized interest		(32,659	)		(19,388	)		(10,390	)


	Interest		168,743			130,419			44,862
	Amortization of discounts and deferred debt issue costs		23,627			16,994			9,481
	Extinguishment of debt		—			—			3,349


	Interest expense	$	192,370		$	147,413		$	57,692

Shareholders_equity

Shareholders' equity	12 Months Ended
Shareholders' equity	Dec. 31, 2013
Shareholders' equity	'
Shareholders' equity	'

	Note 4. Shareholders' equity

	In 2010, the Company authorized 500,000,000 shares of Class A Common Stock, $0.01 par value per share, of which 101,822,676 and 99,417,998 shares were issued and outstanding as of December 31, 2013 and 2012, respectively. As of December 31, 2013 and 2012, the Company had authorized 10,000,000 shares of Class B Non-Voting Common Stock, $0.01 par value per share, of which no shares were outstanding as of December 31, 2013 and 1,829,339 of which were outstanding as of December 31, 2012.

	Each share of Class B Non-Voting Common Stock is convertible into one share of Class A Common Stock at the option of the holder, and is automatically converted at the time it is transferred to a third party unaffiliated with such initial holder, subject to the transfer restrictions.

	On October 15, 2013, the Company entered into an exchange agreement with an existing security holder of the Company, pursuant to which the Company agreed to issue 1,829,339 shares of its Class A Common Stock to such security holder in exchange for an equal number of shares of the Company's Class B Non-Voting Common Stock in a transaction (the "Exchange") exempt from registration pursuant to Section 3(a)(9) of the Securities Act of 1933, as amended. Following the satisfaction of certain closing conditions, the Exchange closed on October 17, 2013. No commission or other remuneration was paid or given directly or indirectly for solicitation of the Exchange, and no cash consideration was paid for the shares of Class A Common Stock issued in the Exchange. As a result of the Exchange, the total number of outstanding shares of Class A Common Stock increased by 1,829,339 shares, and no shares of Class B Non-Voting Common Stock are issued or outstanding. The Exchange did not increase the total number of outstanding shares of the Company's common stock used to compute basic and diluted net income per share.

	On June 4, 2010, the Company issued 482,625 warrants to two institutional investors (the "Committed Investors"). The warrants have a seven-year term and an exercise price of $20 per share. The Company used the BSM option pricing model to determine the fair value of warrants. The fair value of warrants was calculated on the date of grant by an option-pricing model using a number of complex and subjective variables. These variables include expected stock price volatility over the term of the warrant, projected exercise behavior, a risk-free interest rate and expected dividends. The warrants had a fair value at the grant date of $5.6 million. The warrants are classified as an equity instrument and the proceeds from the issuance of common stock to the Committed Investors was split between the warrants and the stock based on fair value of the warrants and recorded as an increase to Paid-in capital on the Consolidated Balance Sheet. On October 21, 2013, one of the Committed Investors performed a cashless exercise of all of its 214,500 warrants, resulting in the issuance of 63,481 shares of Class A Common Stock. As of December 31, 2013, the Company had 268,125 warrants remaining outstanding.

	As of December 31, 2013 and 2012 the Company had authorized 50,000,000 shares of preferred stock, $0.01 par value per share, of which no shares were issued or outstanding.

Rental_Income

Rental Income	12 Months Ended
Rental Income	Dec. 31, 2013
Rental Income	'
Rental Income	'

	Note 5. Rental Income

	At December 31, 2013 minimum future rentals on non-cancelable operating leases of flight equipment in our fleet, which have been delivered as of December 31, 2013, are as follows:


		(dollars in thousands)
	Years ending December 31,
	2014	$	883,306
	2015		840,409
	2016		792,918
	2017		739,119
	2018		696,675
	Thereafter		2,253,533


	Total	$	6,205,960





	The Company earned $34.4 million, $25.0 million and $11.0 million in maintenance reserve revenue based on our lessees' usage of the aircraft for the years ended December 31, 2013, 2012 and 2011, respectively.

	The following table shows the scheduled lease terminations (for the minimum non-cancelable period which does not include contracted unexercised lease extension options) by aircraft type for our operating lease portfolio as of February 27, 2014:


	Aircraft Type	2014		2015		2016		2017		2018		Thereafter		Total
	Airbus A319-100		—		2		—		2		2		—		6
	Airbus A320-200		—		3		2		2		2		33		42
	Airbus A321-200		—		—		1		—		1		5		7
	Airbus A330-200		—		—		—		1		—		15		16
	Airbus A330-300		—		—		—		—		—		5		5
	Boeing 737-700		—		—		3		—		2		5		10
	Boeing 737-800		—		11		5		5		4		25		50
	Boeing 767-300ER(1)		—		1		2		—		—		—		3
	Boeing 777-200ER		—		—		—		—		—		1		1
	Boeing 777-300ER		—		—		—		1		—		5		6
	Embraer E175-200		—		—		—		—		—		8		8
	Embraer E190-100		—		—		—		1		—		22		23
	ATR 72-600		—		—		—		—		—		16		16


	Total		—		17		13		12		11		140		193






	-1
	As of February 27, 2014, the Company had entered into a binding agreement for the sale of one Boeing 767-300ER aircraft with a scheduled lease termination in 2015.

Concentration_of_risk

Concentration of risk	12 Months Ended
Concentration of risk	Dec. 31, 2013
Concentration of risk	'
Concentration of risk	'

	Note 6. Concentration of risk

	Geographical and credit risks

	As of December 31, 2013, all of the Company's rental of flight equipment revenues were generated by leasing flight equipment to foreign and domestic airlines, and the Company leased aircraft to 79 lessees in 47 countries as of December 31, 2013 compared to 69 lessees in 40 countries as of December 31, 2012.

	Over 90% of our aircraft are operated internationally. The following table sets forth the regional concentration of our aircraft portfolio based on net book value as of December 31, 2013 and 2012:


			December 31, 2013					December 31, 2012
	Region		Net Book		% of Total			Net Book		% of Total
	Region		Value		% of Total			Value		% of Total
			(dollars in thousands)
	Asia/Pacific		$	3,317,118		43.6	%	$	2,245,002		35.9	%
	Europe			2,656,816		34.9	%		2,398,531		38.4	%
	Central America, South America and Mexico			829,930		10.9	%		788,189		12.6	%
	U.S. and Canada			436,653		5.7	%		457,546		7.3	%
	The Middle East and Africa			372,618		4.9	%		362,595		5.8	%


	Total		$	7,613,135		100	%	$	6,251,863		100	%





	At December 31, 2013 and 2012, we leased aircraft to customers in the following regions:


			December 31, 2013					December 31, 2012
	Region		Number of		% of Total			Number of		% of Total
	Region		Customers(1)		% of Total			Customers(1)		% of Total
	Asia/Pacific			31		39.2	%		28		40.6	%
	Europe			21		26.6	%		17		24.6	%
	Central America, South America and Mexico			12		15.2	%		9		13	%
	U.S. and Canada			8		10.1	%		8		11.6	%
	The Middle East and Africa			7		8.9	%		7		10.2	%


	Total			79		100	%		69		100	%






	-1
	A customer is an airline with its own operating certificate.

	The following table sets forth the dollar amount and percentage of our rental of flight equipment revenues attributable to the indicated regions based on each airline's principal place of business:


			Year Ended					Year Ended					Year Ended
			December 31, 2013					December 31, 2012					December 31, 2011
	Region		Amount of		% of Total			Amount of		% of Total			Amount of		% of Total
	Region		Rental Revenue		% of Total			Rental Revenue		% of Total			Rental Revenue		% of Total
			(dollars in thousands)
	Asia/Pacific		$	314,908		37.6	%	$	215,537		33.4	%	$	93,237		28	%
	Europe			300,761		35.9	%		253,376		39.2	%		151,566		45.6	%
	Central America, South America and Mexico			107,857		12.9	%		84,341		13.1	%		30,714		9.2	%
	U.S. and Canada			57,366		6.9	%		53,201		8.2	%		39,350		11.8	%
	The Middle East and Africa			55,624		6.7	%		39,398		6.1	%		17,852		5.4	%


Total		$	836,516		100	%	$	645,853		100	%	$	332,719		100	%





Based on our lease placements of future new aircraft deliveries, we anticipate that a growing percentage of our aircraft will be located in the Asia/Pacific, the Central America, South America and Mexico, and the Middle East and Africa regions.

In 2013, one country represented at least 10% of our rental of flight equipment revenue. For the year ended December 31, 2013, China attributed for $129.8 million or 15.5% of our rental of flight equipment revenue. In 2012, three countries represented at least 10% of our rental of flight equipment revenue. For the year ended December 31, 2012, China attributed for $75.5 million or 11.7% of our rental of flight equipment revenue, Italy attributed for $71.0 million or 11.0% of our rental of flight equipment revenue and France attributed for $67.4 million or 10.4% of our rental of flight equipment revenue. In 2011, two countries represented at least 10% of our rental of flight equipment revenue. For the year ended December 31, 2011 China attributed for $39.6 million or 11.9% of our rental of flight equipment revenue and France attributed for $62.2 million or 18.7% of our rental of flight equipment revenue.

In 2013, no individual airline represented at least 10% of our rental of flight equipment revenue. In 2012, one airline represented at least 10% of our rental of flight equipment revenue. For the year ended December 31, 2012, Alitalia attributed for $71.0 million or 11.0% of our rental of flight equipment revenue. In 2011, one airline represented at least 10% of our rental of flight equipment revenue. For the year ended December 31, 2011 Air France attributed for $45.4 million or 13.7% of our rental of flight equipment revenue.

Currency risk

The Company attempts to minimize currency and exchange risks by entering into aircraft purchase agreements and a majority of lease agreements and debt agreements with U.S. dollars as the designated payment currency.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2013
Income Taxes	'
Income Taxes	'

	Note 7. Income Taxes

	The provision for income taxes consists of the following:


		Year Ended			Year Ended			Year Ended
		December 31, 2013			December 31, 2012			December 31, 2012
		(dollars in thousands)
	Current:
	Federal		—			—			—
	State		—			—			—
	Foreign	$	71		$	4		$	49
	Deferred:
	Federal		102,887			71,932			29,102
	State		147			118			458
	Foreign		—			—			—


	Income tax expense	$	103,105		$	72,054		$	29,609





	Differences between the provision for income taxes and income taxes at the statutory federal income tax rate are as follows:


		Year Ended						Year Ended					Year Ended
		December 31, 2013						December 31, 2012					December 31, 2011
		Amount			Percent			Amount		Percent			Amount		Percent
		(dollars in thousands)
	Income taxes at statutory federal rate		102,705			35	%	$	71,390		35	%	$	28,997		35	%
	State income taxes, net of federal income tax effect		95			0.1			75		0.1			298		0.3
	Other		305			0.1			589		0.2			314		0.4


			103,105			35.2	%	$	72,054		35.3	%	$	29,609		35.7	%





	The Company's net deferred tax assets (liabilities) are as follows:


		Year Ended			Year Ended
		December 31, 2013			December 31, 2012
		(dollars in thousands)
	Assets (Liabilities)
	Equity compensation	$	20,808		$	20,521
	Net operating losses		36,786			43,676
	Rents received in advance		21,575			14,436
	Accrued bonus		3,578			2,457
	Other		11,686			6,546
	Aircraft depreciation		(287,696	)		(180,378	)


	Total (liabilities) assets	$	(193,263	)	$	(92,742	)





The Company has net operating loss carry forwards (NOLs) for federal income tax purposes of $108.7 million and $128.4 million as of December 31, 2013 and 2012, respectively, which are available to offset future taxable income in future periods and begin to expire in 2031. The Company has NOLs for state income tax purposes of $52.6 million and $49.9 million as of December 31, 2013 and 2012, respectively, which are available to offset future taxable income in future periods and begin to expire in 2030. The Company utilized $19.5 million of NOLs for federal income tax purposes for the year ended December 31, 2013. The Company recognizes tax benefits associated with stock based compensation directly to stockholders' equity only when realized. Accordingly, deferred tax assets are not recognized for net operating loss carry forwards resulting from windfall tax benefits. A windfall tax benefit occurs when the actual tax benefit realized upon an employee's disposition of a share based award exceeds the tax effect of the cumulative book compensation charge associated with the award. As of December 31, 2013 and 2012, the Company has windfall tax benefits of $3.7 million and $3.7 million, respectively, included in its U.S. net operating loss carry forward, but not reflected in deferred tax assets. The Company uses a tax law ordering approach to determine if the excess tax deductions associated compensation costs have reduced income taxes payable.

The Company has not recorded a deferred tax valuation allowance as of December 31, 2013 and 2012 as realization of the deferred tax asset is considered more likely than not. In assessing the realizability of the deferred tax assets management considered whether future taxable income will be sufficient during the periods in which those temporary differences are deductible before NOLs expire. Management considers the scheduled reversal of deferred tax liabilities, projected taxable income and tax planning strategies in making this assessment. Management anticipates the timing differences on aircraft depreciation will reverse and be available for offsetting the reversal of deferred tax assets. As of December 31, 2013 and 2012 the Company has not recorded any liability for unrecognized tax benefits.

The Company files income tax returns in the U.S. and various state and foreign jurisdictions. The Company is subject to examinations by the major tax jurisdictions for the 2010 tax year and forward.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2013
Commitments and Contingencies	'
Commitments and Contingencies	'

	Note 8. Commitments and Contingencies

	Aircraft Acquisition

	As of December 31, 2013, we had commitments to acquire a total of 327 new aircraft for delivery through 2023 as follows:


	Aircraft Type		2014		2015		2016		2017		2018		Thereafter		Total
	Airbus A321-200(1)			13		6		—		—		—		—		19
	Airbus A320/321 NEO			—		—		3		12		15		20		50
	Airbus A350 XWB(2)			—		—		—		—		1		29		30
	Boeing 737-800			13		20		15		11		—		—		59
	Boeing 737-8/9 MAX(3)			—		—		—		—		8		96		104
	Boeing 777-300ER			5		8		2		—		—		—		15
	Boeing 787-9/10			—		—		—		1		7		37		45
	ATR 72-600			4		1		—		—		—		—		5


	Total			35		35		20		24		31		182		327






	-1
	All of our Airbus A321-200 aircraft will be equipped with sharklets.

	-2
	As of December 31, 2013, five of the Airbus A350-1000 aircraft were subject to reconfirmation.

	-3
	As of December 31, 2013, 20 of the Boeing 737-8 MAX aircraft were subject to reconfirmation.

	Commitments for the acquisition of these aircraft and other equipment at an estimated aggregate purchase price (including adjustments for inflation) of approximately $27.5 billion as of December 31, 2013 are as follows:


			(dollars in thousands)
	Years ending December 31,
	2014		$	2,321,392
	2015			2,190,517
	2016			1,357,736
	2017			1,615,789
	2018			2,781,520
	Thereafter			17,226,533


	Total		$	27,493,487





	We have made non-refundable deposits on the aircraft for which we have commitments to purchase of $1.1 billion and $564.7 million as of December 31, 2013 and December 31, 2012, respectively, which are subject to manufacturer performance commitments. If we are unable to satisfy our purchase commitments, we may be forced to forfeit our deposits. Further, we would be exposed to breach of contract claims by our lessees and manufacturers.

	Office Lease

	The Company's lease for office space provides for step rentals over the term of the lease. Those rentals are considered in the evaluation of recording rent expense on a straight-line basis over the term of the lease. Tenant improvement allowances received from the lessor are deferred and amortized in selling, general and administrative expenses against rent expense. The Company recorded office lease expense of $2.1 million, $2.5 million and $2.1 million for the years ended December 31, 2013, 2012 and 2011, respectively.

	Commitments for minimum rentals under the non-cancelable lease term at December 31, 2013 are as follows:


		(dollars in thousands)
Years ending December 31,
2014		$	2,024
2015			2,083
2016			2,129
2017			2,181
2018			2,580
Thereafter			15,387


Total		$	26,384

Net_Earnings_Per_Share

Net Earnings Per Share	12 Months Ended
Net Earnings Per Share	Dec. 31, 2013
Net Earnings Per Share	'
Net Earnings Per Share	'

	Note 9. Net Earnings Per Share

	Basic net earnings per share is computed by dividing net income by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects the potential dilution that would occur if securities or other contracts to issue common stock were exercised or converted into common stock; however, potential common equivalent shares are excluded if the effect of including these shares would be anti-dilutive. The Company's two classes of common stock, Class A and Class B Non-Voting, have equal rights to dividends and income, and therefore, basic and diluted earnings per share are the same for each class of common stock.

	Diluted net earnings per share takes into account the potential conversion of stock options, restricted stock units, and warrants using the treasury stock method and convertible notes using the if-converted method. For the year ended December 31, 2013, the Company excluded 150,000 shares related to stock options which are potentially dilutive securities from the computation of diluted earnings per share because including these shares would be anti-dilutive. For the year ended December 31, 2012, the Company excluded 3,358,408 shares related to stock options which are potentially dilutive securities from the computation of diluted earnings per share because including these shares would be anti-dilutive. For the year ended December 31, 2011, the Company excluded 3,375,908 shares related to stock options which are potentially dilutive securities from the computation of diluted earnings per share because they were anti-dilutive. In addition, the Company excluded 1,569,005; 2,117,510 and 2,613,539 shares related to restricted stock units for which the performance metric had yet to be achieved as of December 31, 2013, 2012 and 2011, respectively.

	The following table sets forth the reconciliation of basic and diluted net income per share:


		Year Ended		Year Ended		Year Ended
		December 31, 2013		December 31, 2012		December 31, 2011
		(in thousands, except share data)
	Basic net income per share:
	Numerator
	Net income	$	190,411	$	131,919	$	53,232
	Denominator
	Weighted-average common shares outstanding		101,529,137		100,991,871		89,592,945
	Basic net income per share	$	1.88	$	1.31	$	0.59
	Diluted net income per share:
	Numerator
	Net income	$	190,411	$	131,919	$	53,232
	Interest on convertible senior notes		5,783		5,627		560


	Net income plus assumed conversions	$	196,194	$	137,546	$	53,792
	Denominator
	Number of shares used in basic computation		101,529,137		100,991,871		89,592,945
	Weighted-average effect of dilutive securities		7,434,413		6,664,592		823,401


	Number of shares used in per share computation		108,963,550		107,656,463		90,416,346
	Diluted net income per share	$	1.8	$	1.28	$	0.59

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2013
Fair Value Measurements	'
Fair Value Measurements	'

	Note 10. Fair Value Measurements

	Assets and Liabilities Measured at Fair Value on a Recurring and Non-recurring Basis

	The Company had no assets or liabilities which were measured at fair value on a recurring or non-recurring basis as of December 31, 2013 or 2012.

	Financial Instruments Not Measured at Fair Values

	The fair value of debt financing is estimated based on the quoted market prices for the same or similar issues, or on the current rates offered to the Company for debt of the same remaining maturities, which would be categorized as a Level 2 measurement in the fair value hierarchy. The estimated fair value of debt financing as of December 31, 2013 was $6,113.6 million compared to a book value of $5,853.3 million. The estimated fair value of debt financing as of December 31, 2012 was $4,517.6 million compared to a book value of $4,384.7 million.

	The following financial instruments are not measured at fair value on the Company's consolidated balance sheet at December 31, 2013, but require disclosure of their fair values: cash and cash equivalents and restricted cash. The estimated fair value of such instruments at December 31, 2013 and 2012 approximates their carrying value as reported on the consolidated balance sheet. The fair value of all these instruments would be categorized as Level 1 of the fair value hierarchy.

Stockbased_Compensation

Stock-based Compensation	12 Months Ended
Stock-based Compensation	Dec. 31, 2013
Stock-based Compensation	'
Stock-based Compensation	'

	Note 11. Stock-based Compensation

	In accordance with the Amended and Restated Air Lease Corporation 2010 Equity Incentive Plan ("Plan"), the number of stock options ("Stock Options") and restricted stock units ("RSUs") authorized under the Plan is approximately 8,193,088 as of December 31, 2013. Options are generally granted for a term of 10 years and generally vest over a three year period. The Company has issued RSUs with two different vesting criteria: those RSUs that vest based on the attainment of book-value goals and those RSUs that vest based on the attainment of Total Shareholder Return ("TSR") goals. The book-value RSUs generally vest ratably over three to four years, if the performance condition has been met. Book-value RSUs for which the performance metric has not been met are forfeited. The TSR RSUs vest at the end of a three year period. The number of TSR RSUs that will ultimately vest is based upon the percentile ranking of the Company's TSR among a peer group. The number of shares that will ultimately vest will range from 0% to 200% of the RSUs initially granted depending on the extent to which the TSR metric is achieved. As of December 31, 2013, the Company had 1,569,005 unvested RSUs outstanding of which 390,511 are TSR RSUs.

	The Company recorded $21.6 million, $31.7 million and $39.3 million of stock-based compensation expense for the years ended December 31, 2013, 2012 and 2011, respectively.

	Stock Options

	The Company uses the BSM option pricing model to determine the fair value of stock options. The fair value of stock-based payment awards on the date of grant is determined by an option-pricing model using a number of complex and subjective variables. These variables include expected stock price volatility over the term of the awards, a risk-free interest rate and expected dividends.

	Estimated volatility of the Company's common stock for new grants is determined by using historical volatility of the Company's peer group. Due to our limited operating history at the time of grant, there was no historical exercise data to provide a reasonable basis which the Company could use to estimate expected terms. Accordingly, the Company used the "simplified method" as permitted under Staff Accounting Bulletin No. 110. The risk-free interest rate used in the option valuation model was derived from U.S. Treasury zero-coupon issues with remaining terms similar to the expected term on the options. In accordance with ASC Topic 718, Compensation—Stock Compensation, the Company estimated forfeitures at the time of grant and revises those estimates in subsequent periods if actual forfeitures differ from those estimates. During the year ended December 31, 2013 and 2012, the Company did not grant any Stock Options. The average assumptions used to value stock-based payments during the year ended December 31, 2011 are as follows:


			Year Ended
			December 31, 2011
	Dividend yield			None
	Expected term			5.9 years
	Risk-free interest rate			2.4	%
	Volatility			50.2	%

	A summary of stock option activity in accordance with the Company's stock option plan for the year ended December 31, 2013 follows:


			Shares			Exercise		Remaining		Aggregate
						Price		Contractual Term		Intrinsic Value
								(in years)		(in thousands)(1)
	Balance at December 31, 2010			3,225,908		$	20		9.5	$	—
	Granted			150,000		$	28.8		9.3		—
	Exercised			—			—		—		5
	Forfeited/canceled			—			—		—		3


	Balance at December 31, 2011			3,375,908		$	20.39		8.5	$	11,968
	Granted			—			—		—		—
	Exercised			(7,000	)	$	20		7.5		18
	Forfeited/canceled			(10,500	)	$	20		—		—


	Balance at December 31, 2012			3,358,408		$	20.39		7.49	$	4,813
	Granted			—			—		—		—
	Exercised			(500	)	$	20		6.54		5
	Forfeited/canceled			(250	)	$	20		—		3


	Balance at December 31, 2013			3,357,658		$	20.39		6.49		35,883
	Vested and exercisable as of December 31, 2013			3,357,658		$	20.39		6.49		35,883


	-1
	The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the closing stock price of our Class A Common Stock as of the respective date.

	As of December 31, 2013, all of the Company's outstanding employee stock options had fully vested and there were no unrecognized compensation costs related to outstanding employee stock options. Stock-based compensation expense related to employee stock options for the years ended December 31, 2013, 2012 and 2011, totaled $5.4 million, $11.8 million and $12.0 million, respectively.

	The following table summarizes additional information regarding outstanding, exercisable and vested stock options at December 31, 2013:


			Options Outstanding					Options Exercisable
			Options Outstanding					and Vested
	Range of exercise prices		Number of			Weighted-		Number of		Weighted-
			Shares			Average		Shares		Average
						Remaining Life				Remaining Life
						(in years)				(in years)
$20.00			3,207,658			6.46		3,207,658		6.46
$28.80			150,000			7.32		150,000		7.32


$20.00 - $28.80			3,357,658			6.49		3,357,658		6.49





Restricted Stock Units

Compensation cost for stock awards is measured at the grant date based on fair value and recognized over the vesting period. The fair value of book-value RSUs is determined based on the closing market price of the Company's Class A Common Stock on the date of grant, while the fair value of TSR RSUs is determined at the grant date using a Monte Carlo simulation model. Included in the Monte Carlo simulation model were certain assumptions regarding a number of highly complex and subjective variables, such as expected volatility, risk-free interest rate and expected dividends. To appropriately value the award, the risk-free interest rate is estimated for the time period from the valuation date until the vesting date and the historical volatilities were estimated based on a historical timeframe equal to the time from the valuation date until the end date of the performance period. Due to our limited stock history since the completion of our initial public offering on April 25, 2011, historical volatility was estimated based on all available stock history information.

During the year ended December 31, 2013, the Company granted 422,366 RSUs of which 201,058 are TSR RSUs. The following table summarizes the activities for our unvested RSUs for the year ended December 31, 2013:


		Unvested Restricted Stock Units
		Number of Shares			Weighted-
					Average
					Grant-Date
					Fair Value
Unvested at December 31, 2012			2,117,510		$	21.4
Granted			422,366		$	31.96
Vested			(959,873	)	$	20.91
Forfeited/canceled			(10,998	)	$	28.66


Unvested at December 31, 2013			1,569,005		$	24.5


Expected to vest after December 31, 2013(1)			1,557,046		$	24.49


-1
RSUs expected to vest reflect an estimated forfeiture rate.

At December 31, 2013, the outstanding RSUs are expected to vest as follows: 2014—922,485; 2015—273,220; and 2016—88,209. The Company recorded $16.2 million, $19.9 million and $27.3 million of stock-based compensation expense related to RSUs for the years ended December 31, 2013, 2012 and December 31, 2011, respectively.

As of December 31, 2013, there was $12.4 million of unrecognized compensation cost, adjusted for estimated forfeitures, related to unvested stock-based payments granted to employees. Total unrecognized compensation cost will be adjusted for future changes in estimated forfeitures and is expected to be recognized over a weighted average remaining period of 1.1 years.

Litigation

Litigation	12 Months Ended
Litigation	Dec. 31, 2013
Litigation	'
Litigation	'

	Note 12. Litigation

	On April 24, 2012, the Company was named as a defendant in a complaint filed in Superior Court of the State of California for the County of Los Angeles by American International Group, Inc. and ILFC (the "AIG/ILFC Complaint"). The complaint also names as defendants certain executive officers and employees of the Company. American International Group withdrew as a plaintiff on all but one cause of action that is not asserted against the Company.

	Among other things, the complaint, as amended, alleges breach of fiduciary duty, misappropriation of trade secrets, the wrongful recruitment of ILFC employees, and the wrongful diversion of potential ILFC leasing opportunities. The complaint seeks an unspecified amount of damages and injunctive relief. The Company believes that it has meritorious defenses to these claims and intends to defend this matter vigorously. The amount or range of loss, if any, is not estimable at this time.

	On August 15, 2013, the Company filed a cross-complaint against ILFC and AIG. The cross-complaint, as amended, alleges breach of contract for the sale of goods in connection with an agreement entered into by AIG, acting on behalf of ILFC, in January 2010 to sell 25 aircraft to the entity that became Air Lease Corporation. The cross-complaint seeks compensatory damages in excess of $500 million.

Related_party_transactions

Related party transactions	12 Months Ended
Related party transactions	Dec. 31, 2013
Related party transactions	'
Related party transactions	'

	Note 13. Related party transactions

	In March 2011, we entered into a Servicing Agreement with Commonwealth Bank of Australia and one of its subsidiaries. Commonwealth Bank beneficially owns more than 5% of our Class A Common Stock, and one of our directors, Ian M. Saines, was Group Executive of the Institutional Banking and Markets division of Commonwealth Bank through December 2013. Pursuant to the Servicing Agreement, we agreed to arrange the acquisition of an Airbus A320 aircraft on behalf of the subsidiary, to manage the lease of the aircraft to a third party and subsequent lessees, and if requested by the subsidiary, to remarket the aircraft for subsequent leases or for sale. In connection with this transaction, Commonwealth Bank paid us fees for acquiring the aircraft and for collecting the first rent payment under the lease, and will pay us a percentage of the contracted rent and the rent actually paid by the lessee each month. We may earn up to an aggregate of approximately $650,000 in fees under the Servicing Agreement in connection with the acquisition of the aircraft and management of the current lease.

	In March 2011, Commonwealth Bank of Australia provided the Company with a three-year unsecured revolving loan of $25.0 million at a rate of LIBOR plus 2.00%.

	In March 2011, Commonwealth Bank of Australia provided the Company with a five-year unsecured term loan of $12.0 million at a rate of 4.05%.

	In October 2011, Commonwealth Bank of Australia provided the Company with a five-year unsecured term loan of $13.0 million at a rate of 3.48%.

	In December 2011, the Company, through a limited liability company of which it is the sole member, entered into a purchase agreement to acquire a corporate aircraft in 2012. The right to purchase the corporate aircraft was formerly held by an unrelated entity controlled by Mr. Udvar-Házy, our Chairman and CEO. The parties conducted this transaction on an arm's-length basis. The Company believes, based on independent expert advice, that at the time the Company entered into the purchase agreement, the purchase price of the aircraft was significantly below the then-current fair market value for such aircraft. No financial payment was made, and no financial benefit was received, by Mr. Udvar-Házy.

	In March 2012, we entered into a Syndicated Unsecured Revolving Credit Facility under which Commonwealth Bank is a lender. See note 3 of notes to Consolidated Financial Statements.

	In April 2012, we entered into a Servicing Agreement with Commonwealth Bank of Australia and one of its subsidiaries at terms no more favorable than would be to an unrelated third party. Pursuant to the Servicing Agreement, we agreed to arrange the acquisition of a Boeing 777 aircraft on behalf of a subsidiary, to manage the lease of the aircraft to a third party, and if requested by the subsidiary, to remarket the aircraft for subsequent leases or for sale. In connection with this transaction, Commonwealth Bank of Australia paid us fees for acquiring the aircraft and for collecting the first rent payment under the lease, and will pay us a percentage of the contracted rent and the rent actually paid by the lessee each month. We may earn up to an aggregate of approximately $2.7 million in fees under the Servicing Agreement in connection with the acquisition of the aircraft and management of the current lease.

	In December 2012, we entered into an agreement with Commonwealth Bank of Australia and one of its subsidiaries for the sale of an Airbus A320-200 at terms no more favorable than would be to an unrelated third party. In addition, the Company entered into a Servicing Agreement with Commonwealth Bank of Australia to manage the lease of the aircraft to a third party and subsequent lessees, and if requested by the subsidiary, to remarket the aircraft for subsequent leases or for sale. In connection with this transaction, Commonwealth Bank of Australia paid us for the aircraft and for collecting the first rent payment under the lease subsequent to the sale, and will pay us a percentage of the contracted rent and the rent actually paid by the lessee each month. We recorded a gain of $1.9 million on the sale of the aircraft and may earn up to an aggregate of approximately $980,000 in fees under the Servicing Agreement in connection with the management of the current lease.

	In June 2013, the Company completed a marketed secondary public offering of 8,000,000 shares of its Class A Common Stock held by affiliates of Ares Management LLC, Leonard Green & Partners, L.P. and WL Ross & Co. LLC. The shares of Class A Common Stock were offered to the public at $26.75 per share. The Company did not issue any additional shares of Class A Common Stock and did not receive any proceeds in this transaction. The total number of shares of the Company's Class A Common Stock outstanding did not change as a result of this offering.

	In September 2013, the Company, through a limited liability company of which it is the sole member, entered into a purchase agreement to acquire a corporate aircraft. The right to purchase the corporate aircraft was formerly held by an entity controlled by Mr. Udvar-Házy, our Chairman and CEO, and not affiliated with the Company. The parties conducted this transaction on an arm's-length basis. The Company believes, based on independent expert advice, that at the time the Company entered into the purchase agreement, the purchase price of the aircraft was significantly below the then-current fair market value for such aircraft. The Company reimbursed Mr. Udvar-Házy $6.8 million for deposits he paid to the manufacturer plus interest at a rate of 3.90% per annum.

	In November 2013, the Company completed a marketed secondary public offering of up to 10,138,888 shares of its Class A Common Stock held by affiliates of Ares Management LLC, Leonard Green & Partners, L.P. and WL Ross & Co. LLC. The shares of Class A Common Stock were offered to the public at $31.50 per share. The Company did not issue any additional shares of Class A Common Stock and did not receive any proceeds in this transaction. The total number of shares of the Company's Class A Common Stock outstanding did not change as a result of this offering.

Quarterly_financial_data_unaud

Quarterly financial data (unaudited)	12 Months Ended
Quarterly financial data (unaudited)	Dec. 31, 2013
Quarterly financial data (unaudited)	'
Quarterly financial data (unaudited)	'

	Note 14. Quarterly financial data (unaudited)

	The following table presents our unaudited quarterly results of operations for the two-year period ended December 31, 2013.


		Quarter Ended
		Mar 31,		Jun 30,		Sep 30,		Dec 31,		Mar 31,		Jun 30,		Sep 30,		Dec 31,
		2012		2012		2012		2012		2013		2013		2013		2013
		(in thousands, except share data)
	Revenues	$	132,553	$	158,173	$	174,925	$	190,095	$	191,997	$	207,872	$	215,905	$	242,901
	Income before taxes		41,610		43,884		57,193		61,286		61,672		66,311		74,888		90,571
	Net income		26,927		28,172		37,011		39,809		39,996		42,990		48,578		58,847
	Net income per share:
	Basic	$	0.27	$	0.28	$	0.37	$	0.39	$	0.39	$	0.42	$	0.48	$	0.58
	Diluted	$	0.26	$	0.28	$	0.36	$	0.38	$	0.38	$	0.41	$	0.46	$	0.55

	The sum of quarterly earnings per share amounts may not equal the annual amount reported since per share amounts are computed independently for each period presented.

Subsequent_events

Subsequent events	12 Months Ended
Subsequent events	Dec. 31, 2013
Subsequent events	'
Subsequent events	'

	Note 15. Subsequent events

	On February 26, 2014, our board of directors approved our fifth consecutive quarterly cash dividend of $0.03 per share on our outstanding common stock. The dividend will be paid on April 7, 2014 to holders of record of our common stock as of March 20, 2014.

	In February 2014, the Company received full insurance proceeds with respect to the total loss of an aircraft that occurred during 2013.

Summary_of_significant_account1

Summary of significant accounting policies (Policies)	12 Months Ended
Summary of significant accounting policies (Policies)	Dec. 31, 2013
Summary of significant accounting policies	'
Principles of consolidation	'

	Principles of consolidation

	The Company consolidates financial statements of all entities in which we have a controlling financial interest, including the account of any Variable Interest Entity in which we have a controlling financial interest and for which we are the primary beneficiary. All material intercompany balances are eliminated in consolidation.

Rental of flight equipment	'

	Rental of flight equipment

	The Company leases flight equipment principally under operating leases and reports rental income ratably over the life of each lease. Rentals received, but unearned, under the lease agreements are recorded in Rentals received in advance on the Company's Consolidated Balance Sheet until earned. The difference between the rental income recorded and the cash received under the provisions of the lease is included in Lease receivables, as a component of Other assets on the Company's Consolidated Balance Sheet. An allowance for doubtful accounts will be recognized for past-due rentals based on management's assessment of collectability. Management monitors all lessees with past due lease payments and discuss relevant operational and financial issues facing those lessees in order to determine an appropriate allowance for doubtful accounts. In addition, if collection is not reasonably assured, the Company will not recognize rental income for amounts due under the Company's lease contracts and will recognize revenue for such lessees on a cash basis. As of December 31, 2013 and 2012, the Company had no such allowance, and no leases were on a cash basis.

	All of the Company's lease agreements are triple net leases whereby the lessee is responsible for all taxes, insurance, and aircraft maintenance. In the future, we may incur repair and maintenance expenses for off-lease aircraft. We recognize repair and maintenance expense in our Consolidated Statements of Income for all such expenditures. In many operating lease contracts, the lessee is obligated to make periodic payments, which are calculated with reference to the utilization of the airframe, engines and other major life-limited components during the lease. In these leases, we will make a payment to the lessee to compensate the lessee for the cost of the Qualifying Event incurred, up to the maximum of the amount of Maintenance Reserves made by the lessee during the lease term, net of previous reimbursements. These payments are made upon the lessee's presentation of invoices evidencing the completion of such Qualifying Event. The Company records as "Rental of flight equipment" revenue, the portion of Maintenance Reserves that is virtually certain will not be reimbursed to the lessee. Maintenance Reserves payments which we may be required to reimburse to the lessee are reflected in our overhaul reserve liability, as a component of "Security deposits and overhaul reserves on flight equipment leases" in our Consolidated Balance Sheet.

	Lessee-specific modifications are capitalized as initial direct costs and amortized over the term of the lease into rental revenue in our Consolidated Statements of Income.

Initial direct costs	'

	Initial direct costs

	The Company records as period costs those internal and other costs incurred in connection with identifying, negotiating and delivering aircraft to the Company's lessees. Amounts paid by us to lessees, or other parties, in connection with the lease transactions are capitalized and amortized as a reduction to lease revenue over the lease term.

Cash and cash equivalents	'

	Cash and cash equivalents

	The Company considers cash and cash equivalents to be cash on hand and highly liquid investments with original maturity dates of 90 days or less.

Restricted cash	'

	Restricted cash

	Restricted cash consists of pledged security deposits, maintenance reserves, and rental payments related to secured aircraft financing arrangements.

Flight equipment	'

	Flight equipment

	Flight equipment under operating lease is stated at cost less accumulated depreciation. Purchases, major additions and modifications, and interest on deposits during the construction phase are capitalized. The Company generally depreciates passenger aircraft on a straight-line basis over a 25-year life from the date of manufacture to a 15% residual value. Changes in the assumption of useful lives or residual values for aircraft could have a significant impact on the Company's results of operations and financial condition.

	At the time flight equipment is retired or sold, the cost and accumulated depreciation are removed from the related accounts and the difference, net of proceeds, is recorded as a gain or loss in our Consolidated Statements of Income.

	Management evaluates on a quarterly basis the need to perform an impairment test whenever facts or circumstances indicate a potential impairment has occurred. An assessment is performed whenever events or changes in circumstances indicate that the carrying amount of an aircraft may not be recoverable. Recoverability of an aircraft's carrying amount is measured by comparing the carrying amount of the aircraft to future undiscounted net cash flows expected to be generated by the aircraft. The undiscounted cash flows consist of cash flows from currently contracted leases, future projected lease rates and estimated residual or scrap values for each aircraft. We develop assumptions used in the recoverability analysis based on our knowledge of active lease contracts, current and future expectations of the global demand for a particular aircraft type, and historical experience in the aircraft leasing market and aviation industry, as well as information received from third-party industry sources. The factors considered in estimating the undiscounted cash flows are affected by changes in future periods due to changes in contracted lease rates, economic conditions, technology and airline demand for a particular aircraft type. In the event that an aircraft does not meet the recoverability test, the aircraft will be recorded at fair value in accordance with the Company's Fair Value Policy, resulting in an impairment charge. Our Fair Value Policy is described below under "Fair Value Measurements". As of December 31, 2013 and 2012, no impairment charges have been incurred to date.

Capitalized interest	'

	Capitalized interest

	The Company may borrow funds to finance deposits on new flight equipment purchases. The Company capitalizes interest expense on such borrowings. The capitalized amount is calculated using our composite borrowing rate and is recorded as an increase to the cost of the flight equipment on our Consolidated Balance Sheet.

Fair value measurements	'

	Fair value measurements

	Fair value is the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company measures the fair value of certain assets on a non-recurring basis, principally our flight equipment, when Generally Accepted Accounting Principles ("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.

	The Company records flight equipment at fair value when we determine the carrying value may not be recoverable. The Company principally uses the income approach to measure the fair value of flight equipment. The income approach is based on the present value of cash flows from contractual lease agreements and projected future lease payments, including contingent rentals, net of expenses, which extend to the end of the aircraft's economic life in its highest and best use configuration, as well as a disposition value based on expectations of market participants. These valuations are considered Level 3 valuations, as the valuations contain significant non-observable inputs.

Income taxes	'

	Income taxes

	The Company uses the asset and liability method of accounting for income taxes. Under the asset and liability method, deferred income taxes are recognized for the tax consequences of "temporary differences" by applying enacted statutory tax rates applicable to future years to differences between the financial statement carrying amounts and the tax basis of existing assets and liabilities. The effect on deferred taxes of a change in the tax rates is recognized in income in the period that includes the enactment date. The Company records a valuation allowance for deferred tax assets when the probability of realization of the full value of the asset is less than 50%. The Company recognizes the impact of a tax position, if that position is more than 50% likely to be sustained on audit, based on the technical merits of the position. Recognized income tax positions are measured at the largest amount that is greater than 50% likely to be realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs.

	The Company recognizes interest and penalties for uncertain tax positions in income tax expense.

Deferred costs	'

	Deferred costs

	The Company incurs debt issue costs in connection with debt financings. Those costs are deferred and amortized over the life of the specific loan using the effective interest method and charged to interest expense. The Company also incurs costs in connection with equity offerings. Such costs are deferred until the equity offering is completed and either netted against the equity raised, or expensed if the equity offering is abandoned.

Stock-based compensation	'

	Stock-based compensation

	Stock-based compensation cost is measured at the grant date based on the fair value of the award. The Company recognizes compensation costs for shares that are expected to vest, on a straight-line basis, over the requisite service period of the award.

Use of estimates	'

	Use of estimates

	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Debt_financing_Tables

Debt financing (Tables)	12 Months Ended
Debt financing (Tables)	Dec. 31, 2013
Debt financing	'
Summary of consolidated debt	'






		December 31, 2013			December 31, 2012
		(dollars in thousands)
	Unsecured
	Senior notes	$	3,055,620		$	1,775,000
	Revolving credit facilities		808,000			420,000
	Term financings		247,722			248,916
	Convertible senior notes		200,000			200,000


			4,311,342			2,643,916
	Secured
	Warehouse facilities		828,418			1,061,838
	Term financings		654,369			688,601
	Export credit financing		71,539			—


			1,554,326			1,750,439
	Total secured and unsecured debt financing		5,865,668			4,394,355
	Less: Debt discount		(12,351	)		(9,623	)


	Total debt	$	5,853,317		$	4,384,732
Schedule of secured obligations	'






		December 31, 2013			December 31, 2012
		(dollars in thousands)
	Nonrecourse	$	847,684		$	1,085,941
	Recourse		706,642			664,498


	Total	$	1,554,326		$	1,750,439
	Number of aircraft pledged as collateral		52			55
	Net book value of aircraft pledged as collateral	$	2,454,350		$	2,728,636
Schedule of maturities of debt outstanding	'






		(dollars in thousands)
	Years ending December 31,
	2014	$	214,095
	2015		264,004
	2016		943,637
	2017		2,210,251
	2018		709,246
	Thereafter		1,524,435


	Total(1)(2)	$	5,865,668






	-1
	As of December 31, 2013, the Company had $656.8 million of debt outstanding under the 2010 Warehouse Facility. The Company is able to draw on the facility during an availability period that ends in June 2015 with a subsequent term out option, through 2018 which is the maturity in the schedule above.

	-2
	As of December 31, 2013, the Company had $808.0 million of debt outstanding under our revolving credit facilities. The outstanding drawn balances may be rolled until the maturity date of each respective facility and have been presented as such in the maturity schedule above.

Interest_expense_Tables

Interest expense (Tables)	12 Months Ended
Interest expense (Tables)	Dec. 31, 2013
Interest expense	'
Schedule of components of interest	'






		Year ended			Year ended			Year ended
		December 31, 2013			December 31, 2012			December 31, 2011
		(dollars in thousands)
	Interest on borrowings	$	201,402		$	149,807		$	55,252
	Less capitalized interest		(32,659	)		(19,388	)		(10,390	)


	Interest		168,743			130,419			44,862
	Amortization of discounts and deferred debt issue costs		23,627			16,994			9,481
	Extinguishment of debt		—			—			3,349


	Interest expense	$	192,370		$	147,413		$	57,692

Rental_Income_Tables

Rental Income (Tables)	12 Months Ended
Rental Income (Tables)	Dec. 31, 2013
Rental Income	'
Schedule of minimum future rentals on non-cancelable operating leases of flight equipment	'

	At December 31, 2013 minimum future rentals on non-cancelable operating leases of flight equipment in our fleet, which have been delivered as of December 31, 2013, are as follows:


		(dollars in thousands)
	Years ending December 31,
	2014	$	883,306
	2015		840,409
	2016		792,918
	2017		739,119
	2018		696,675
	Thereafter		2,253,533


	Total	$	6,205,960




Schedule of lease terminations by aircraft type for operating lease portfolio	'

	The following table shows the scheduled lease terminations (for the minimum non-cancelable period which does not include contracted unexercised lease extension options) by aircraft type for our operating lease portfolio as of February 27, 2014:


	Aircraft Type	2014		2015		2016		2017		2018		Thereafter		Total
	Airbus A319-100		—		2		—		2		2		—		6
	Airbus A320-200		—		3		2		2		2		33		42
	Airbus A321-200		—		—		1		—		1		5		7
	Airbus A330-200		—		—		—		1		—		15		16
	Airbus A330-300		—		—		—		—		—		5		5
	Boeing 737-700		—		—		3		—		2		5		10
	Boeing 737-800		—		11		5		5		4		25		50
	Boeing 767-300ER(1)		—		1		2		—		—		—		3
	Boeing 777-200ER		—		—		—		—		—		1		1
	Boeing 777-300ER		—		—		—		1		—		5		6
	Embraer E175-200		—		—		—		—		—		8		8
	Embraer E190-100		—		—		—		1		—		22		23
	ATR 72-600		—		—		—		—		—		16		16


	Total		—		17		13		12		11		140		193






	-1
	As of February 27, 2014, the Company had entered into a binding agreement for the sale of one Boeing 767-300ER aircraft with a scheduled lease termination in 2015.

Concentration_of_risk_Tables

Concentration of risk (Tables)	12 Months Ended
Concentration of risk (Tables)	Dec. 31, 2013
Concentration of risk	'
Schedule of rental revenue and percentage of rental flight equipment revenues	'






		Year Ended					Year Ended					Year Ended
		December 31, 2013					December 31, 2012					December 31, 2011
	Region	Amount of		% of Total			Amount of		% of Total			Amount of		% of Total
	Region	Rental Revenue		% of Total			Rental Revenue		% of Total			Rental Revenue		% of Total
		(dollars in thousands)
	Asia/Pacific	$	314,908		37.6	%	$	215,537		33.4	%	$	93,237		28	%
	Europe		300,761		35.9	%		253,376		39.2	%		151,566		45.6	%
	Central America, South America and Mexico		107,857		12.9	%		84,341		13.1	%		30,714		9.2	%
	U.S. and Canada		57,366		6.9	%		53,201		8.2	%		39,350		11.8	%
	The Middle East and Africa		55,624		6.7	%		39,398		6.1	%		17,852		5.4	%


	Total	$	836,516		100	%	$	645,853		100	%	$	332,719		100	%




Net book value of aircraft portfolio \| Geographic region	'
Concentration of risk	'
Schedule of concentration of risk by regions	'






		December 31, 2013					December 31, 2012
	Region	Net Book		% of Total			Net Book		% of Total
	Region	Value		% of Total			Value		% of Total
		(dollars in thousands)
	Asia/Pacific	$	3,317,118		43.6	%	$	2,245,002		35.9	%
	Europe		2,656,816		34.9	%		2,398,531		38.4	%
	Central America, South America and Mexico		829,930		10.9	%		788,189		12.6	%
	U.S. and Canada		436,653		5.7	%		457,546		7.3	%
	The Middle East and Africa		372,618		4.9	%		362,595		5.8	%


	Total	$	7,613,135		100	%	$	6,251,863		100	%




Number of customers \| Geographic region	'
Concentration of risk	'
Schedule of concentration of risk by regions	'






		December 31, 2013					December 31, 2012
	Region	Number of		% of Total			Number of		% of Total
	Region	Customers(1)		% of Total			Customers(1)		% of Total
	Asia/Pacific		31		39.2	%		28		40.6	%
	Europe		21		26.6	%		17		24.6	%
	Central America, South America and Mexico		12		15.2	%		9		13	%
	U.S. and Canada		8		10.1	%		8		11.6	%
	The Middle East and Africa		7		8.9	%		7		10.2	%


	Total		79		100	%		69		100	%






	-1
	A customer is an airline with its own operating certificate.

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2013
Income Taxes	'
Schedule of provision for income taxes	'






		Year Ended			Year Ended			Year Ended
		December 31, 2013			December 31, 2012			December 31, 2012
		(dollars in thousands)
	Current:
	Federal		—			—			—
	State		—			—			—
	Foreign	$	71		$	4		$	49
	Deferred:
	Federal		102,887			71,932			29,102
	State		147			118			458
	Foreign		—			—			—


	Income tax expense	$	103,105		$	72,054		$	29,609




Schedule of differences between the provision for income taxes and income taxes at the statutory federal income tax rate	'






		Year Ended						Year Ended					Year Ended
		December 31, 2013						December 31, 2012					December 31, 2011
		Amount			Percent			Amount		Percent			Amount		Percent
		(dollars in thousands)
	Income taxes at statutory federal rate		102,705			35	%	$	71,390		35	%	$	28,997		35	%
	State income taxes, net of federal income tax effect		95			0.1			75		0.1			298		0.3
	Other		305			0.1			589		0.2			314		0.4


			103,105			35.2	%	$	72,054		35.3	%	$	29,609		35.7	%




Schedule of net deferred tax assets (liabilities)	'






		Year Ended			Year Ended
		December 31, 2013			December 31, 2012
		(dollars in thousands)
	Assets (Liabilities)
	Equity compensation	$	20,808		$	20,521
	Net operating losses		36,786			43,676
	Rents received in advance		21,575			14,436
	Accrued bonus		3,578			2,457
	Other		11,686			6,546
	Aircraft depreciation		(287,696	)		(180,378	)


	Total (liabilities) assets	$	(193,263	)	$	(92,742	)

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Dec. 31, 2013
Commitments and Contingencies	'
Schedule of commitments to acquire aircraft	'

	As of December 31, 2013, we had commitments to acquire a total of 327 new aircraft for delivery through 2023 as follows:


	Aircraft Type	2014		2015		2016		2017		2018		Thereafter		Total
	Airbus A321-200(1)		13		6		—		—		—		—		19
	Airbus A320/321 NEO		—		—		3		12		15		20		50
	Airbus A350 XWB(2)		—		—		—		—		1		29		30
	Boeing 737-800		13		20		15		11		—		—		59
	Boeing 737-8/9 MAX(3)		—		—		—		—		8		96		104
	Boeing 777-300ER		5		8		2		—		—		—		15
	Boeing 787-9/10		—		—		—		1		7		37		45
	ATR 72-600		4		1		—		—		—		—		5


	Total		35		35		20		24		31		182		327






	-1
	All of our Airbus A321-200 aircraft will be equipped with sharklets.

	-2
	As of December 31, 2013, five of the Airbus A350-1000 aircraft were subject to reconfirmation.

	-3
	As of December 31, 2013, 20 of the Boeing 737-8 MAX aircraft were subject to reconfirmation.

Schedule of commitments for the acquisition of the aircraft and other equipment at an estimated aggregate purchase price	'

	Commitments for the acquisition of these aircraft and other equipment at an estimated aggregate purchase price (including adjustments for inflation) of approximately $27.5 billion as of December 31, 2013 are as follows:


		(dollars in thousands)
	Years ending December 31,
	2014	$	2,321,392
	2015		2,190,517
	2016		1,357,736
	2017		1,615,789
	2018		2,781,520
	Thereafter		17,226,533


	Total	$	27,493,487




Schedule of commitments for minimum rentals under the non-cancelable lease term	'

	Commitments for minimum rentals under the non-cancelable lease term at December 31, 2013 are as follows:


		(dollars in thousands)
	Years ending December 31,
	2014	$	2,024
	2015		2,083
	2016		2,129
	2017		2,181
	2018		2,580
	Thereafter		15,387


	Total	$	26,384

Net_Earnings_Per_Share_Tables

Net Earnings Per Share (Tables)	12 Months Ended
Net Earnings Per Share (Tables)	Dec. 31, 2013
Net Earnings Per Share	'
Schedule of reconciliation of basic and diluted net income per share	'






		Year Ended		Year Ended		Year Ended
		December 31, 2013		December 31, 2012		December 31, 2011
		(in thousands, except share data)
	Basic net income per share:
	Numerator
	Net income	$	190,411	$	131,919	$	53,232
	Denominator
	Weighted-average common shares outstanding		101,529,137		100,991,871		89,592,945
	Basic net income per share	$	1.88	$	1.31	$	0.59
	Diluted net income per share:
	Numerator
	Net income	$	190,411	$	131,919	$	53,232
	Interest on convertible senior notes		5,783		5,627		560


	Net income plus assumed conversions	$	196,194	$	137,546	$	53,792
	Denominator
	Number of shares used in basic computation		101,529,137		100,991,871		89,592,945
	Weighted-average effect of dilutive securities		7,434,413		6,664,592		823,401


	Number of shares used in per share computation		108,963,550		107,656,463		90,416,346
	Diluted net income per share	$	1.8	$	1.28	$	0.59

Stockbased_Compensation_Tables

Stock-based Compensation (Tables)	12 Months Ended
Stock-based Compensation (Tables)	Dec. 31, 2013
Stock-based Compensation	'
Schedule of average assumptions used to value stock-based payments	'

	The average assumptions used to value stock-based payments during the year ended December 31, 2011 are as follows:


		Year Ended
		December 31, 2011
	Dividend yield		None
	Expected term		5.9 years
	Risk-free interest rate		2.4	%
	Volatility		50.2	%
Summary of stock option activity	'






		Shares			Exercise		Remaining		Aggregate
					Price		Contractual Term		Intrinsic Value
							(in years)		(in thousands)(1)
	Balance at December 31, 2010		3,225,908		$	20		9.5	$	—
	Granted		150,000		$	28.8		9.3		—
	Exercised		—			—		—		5
	Forfeited/canceled		—			—		—		3


	Balance at December 31, 2011		3,375,908		$	20.39		8.5	$	11,968
	Granted		—			—		—		—
	Exercised		(7,000	)	$	20		7.5		18
	Forfeited/canceled		(10,500	)	$	20		—		—


	Balance at December 31, 2012		3,358,408		$	20.39		7.49	$	4,813
	Granted		—			—		—		—
	Exercised		(500	)	$	20		6.54		5
	Forfeited/canceled		(250	)	$	20		—		3


	Balance at December 31, 2013		3,357,658		$	20.39		6.49		35,883
	Vested and exercisable as of December 31, 2013		3,357,658		$	20.39		6.49		35,883


	-1
	The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the closing stock price of our Class A Common Stock as of the respective date.

Summary of additional information regarding outstanding, exercisable and vested options	'

	The following table summarizes additional information regarding outstanding, exercisable and vested stock options at December 31, 2013:


		Options Outstanding					Options Exercisable
		Options Outstanding					and Vested
	Range of exercise prices	Number of			Weighted-		Number of		Weighted-
		Shares			Average		Shares		Average
					Remaining Life				Remaining Life
					(in years)				(in years)
	$20.00		3,207,658			6.46		3,207,658		6.46
	$28.80		150,000			7.32		150,000		7.32


	$20.00 - $28.80		3,357,658			6.49		3,357,658		6.49




Summary of activities for unvested RSUs	'






		Unvested Restricted Stock Units
		Number of Shares			Weighted-
					Average
					Grant-Date
					Fair Value
	Unvested at December 31, 2012		2,117,510		$	21.4
	Granted		422,366		$	31.96
	Vested		(959,873	)	$	20.91
	Forfeited/canceled		(10,998	)	$	28.66


	Unvested at December 31, 2013		1,569,005		$	24.5


	Expected to vest after December 31, 2013(1)		1,557,046		$	24.49


	-1
	RSUs expected to vest reflect an estimated forfeiture rate.

Quarterly_financial_data_unaud1

Quarterly financial data (unaudited) (Tables)	12 Months Ended
Quarterly financial data (unaudited) (Tables)	Dec. 31, 2013
Quarterly financial data (unaudited)	'
Schedule of unaudited quarterly results of operations	'

	The following table presents our unaudited quarterly results of operations for the two-year period ended December 31, 2013.


		Quarter Ended
		Mar 31,		Jun 30,		Sep 30,		Dec 31,		Mar 31,		Jun 30,		Sep 30,		Dec 31,
		2012		2012		2012		2012		2013		2013		2013		2013
		(in thousands, except share data)
	Revenues	$	132,553	$	158,173	$	174,925	$	190,095	$	191,997	$	207,872	$	215,905	$	242,901
	Income before taxes		41,610		43,884		57,193		61,286		61,672		66,311		74,888		90,571
	Net income		26,927		28,172		37,011		39,809		39,996		42,990		48,578		58,847
	Net income per share:
	Basic	$	0.27	$	0.28	$	0.37	$	0.39	$	0.39	$	0.42	$	0.48	$	0.58
	Diluted	$	0.26	$	0.28	$	0.36	$	0.38	$	0.38	$	0.41	$	0.46	$	0.55

Summary_of_significant_account2

Summary of significant accounting policies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	item	item
Summary of significant accounting policies	'	'
Number of aircraft owned	193	'
Number of aircraft on order with manufacturers	327	'
Rental of flight equipment	'	'
Allowance for doubtful accounts	$0	$0
Number of leases on cash basis	0	0
Flight equipment	'	'
Useful life	'25 years	'
Residual value (as a percent)	15.00%	'
Impairment charges	$0	$0
Income taxes	'	'
Probability threshold of realization of full value of the asset for recording of valuation allowance for deferred tax assets (as a percent)	50.00%	'

Debt_financing_Details

Debt financing (Details) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Oct. 02, 2013

Dec. 31, 2012

Feb. 05, 2013

Nov. 19, 2013

Oct. 02, 2013

Dec. 31, 2013

Dec. 31, 2012

7-May-13

Aug. 26, 2013

7-May-13

Dec. 31, 2013

Nov. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Nov. 30, 2011

Dec. 31, 2013

Jun. 26, 2013

Aug. 26, 2013

Jun. 26, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Jun. 21, 2013

Dec. 31, 2013

Dec. 31, 2012

Jun. 21, 2013

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2013

Unsecured

Senior notes

4.75% senior unsecured notes due 2020

3.375% senior unsecured notes due 2019

3.64% senior unsecured notes due 2016

4.49% senior unsecured notes due 2019

Revolving credit facilities

Syndicated Unsecured Revolving Credit Facility

Unsecured term financings

Convertible senior notes

7.375% senior unsecured notes due January 30, 2019

5.625% senior notes due 2017

Secured

Warehouse facilities

Amended 2010 Warehouse Facility

2010 Warehouse Facility

2012 Warehouse Facility

Secured term financings

Export credit financing

Term loan

Amendment and restatement of syndicated unsecured revolving credit agreement

item

Minimum

Maximum

Class A Common Stock

Maximum

item

Minimum

Maximum

item

Minimum

Maximum

item

Debt financing

Secured and unsecured debt financing

$5,865,668,000

$4,394,355,000

$4,311,342,000

$2,643,916,000

$3,055,620,000

$1,775,000,000

$808,000,000

$420,000,000

$247,722,000

$248,916,000

$200,000,000

$1,554,326,000

$1,750,439,000

$828,418,000

$1,061,838,000

$654,369,000

$688,601,000

$71,539,000

Less: Debt discount

-12,351,000

-9,623,000

Total debt

5,853,317,000

4,384,732,000

Secured Obligations

Nonrecourse

847,684,000

1,085,941,000

Recourse

706,642,000

664,498,000

Total

1,554,326,000

1,750,439,000

168,300,000

Number of aircraft pledged as collateral

Net book value of aircraft pledged as collateral

2,454,350,000

2,728,636,000

985,200,000

1,300,000,000

245,700,000

256,600,000

1,140,000,000

1,150,000,000

Amount issued

1,300,000,000

185,000,000

400,000,000

700,000,000

53,000,000

132,000,000

131,000,000

200,000,000

132,000,000

135,000,000

76,500,000

Interest rate (as a percent)

4.75%

3.38%

3.64%

4.49%

3.10%

3.50%

3.88%

7.38%

5.63%

4.25%

4.28%

5.36%

4.25%

1.62%

Aggregate principal amount of debt offered to exchange of existing debt

125,400,000

151,600,000

Fixed rate debt

153,900,000

159,100,000

Floating rate debt

505,500,000

529,500,000

Variable interest basis

'LIBOR

Interest margin (as a percent)

1.75%

1.25%

1.45%

1.25%

1.50%

3.00%

3.59%

2.25%

2.50%

0.40%

2.15%

2.85%

Variable interest rate floor (as a percent)

0.00%

Commitment fee in respect of unutilized commitments (as a percent)

0.38%

0.25%

0.30%

0.25%

Capacity provided

1,700,000,000

2,000,000,000

1,000,000,000

1,250,000,000

192,800,000

Number of aircraft refinanced

Amount outstanding

656,800,000

877,700,000

171,600,000

184,100,000

Cash collateral and lessee deposits pledged

65,400,000

98,600,000

7,600,000

5,800,000

Term of debt

'3 years

'4 years

'5 years

'6 years

'7 years

Number of debt instruments bearing fixed interest rate

Additional interest rate (as a percent)

0.50%

Initial term of debt

'3 years

Remaining term during which increased interest rate will be applicable

'6 months

Variable interest basis for the remaining term

'LIBOR

Interest margin for the remaining term (as a percent)

4.50%

Share price on conversion (in dollars per share)

$30.23

Increase in aggregate principal amount of facility

$657,000,000

$300,000,000

Interest rate on undrawn balances (as a percent)

0.50%

0.75%

Unsecured guarantee (as a percent)

10.00%

Number of debt instruments bearing floating interest rate

Number of term loans amended

Number of lenders related to term loans amended

Variable interest basis for the initial term

'LIBOR

Interest margin for the initial term (as a percent)

3.00%

Number of additional term facilities

Debt_financing_Details_2

Debt financing (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Maturities	'	'
2014	$214,095	'
2015	264,004	'
2016	943,637	'
2017	2,210,251	'
2018	709,246	'
Thereafter	1,524,435	'
Total	$5,865,668	$4,394,355

Interest_expense_Details

Interest expense (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest expense	'	'	'
Interest on borrowings	$201,402	$149,807	$55,252
Less capitalized interest	-32,659	-19,388	-10,390
Interest	168,743	130,419	44,862
Amortization of discounts and deferred debt issue costs	23,627	16,994	9,481
Extinguishment of debt	'	'	3,349
Interest expense	$192,370	$147,413	$57,692

Shareholders_equity_Details

Shareholders' equity (Details) (USD $)

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

Oct. 21, 2013

Oct. 15, 2013

Jun. 04, 2010

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Oct. 21, 2013

Oct. 15, 2013

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2010

Dec. 31, 2013

Oct. 15, 2013

Dec. 31, 2012

item

Class A Common Stock

Class B Non-Voting Common Stock

Shareholders' equity

Common Stock, authorized shares

500,000,000

10,000,000

Common Stock, par value (in dollars per share)

$0.01

Conversion ratio

Common stock, shares issued

101,822,676

99,417,998

1,829,339

Common stock, shares outstanding

101,822,676

99,417,998

1,829,339

Common stock issued (in shares)

1,829,339

34,825,470

Commission or other remuneration paid

Cash consideration of issuance of common stock

43,000

867,230,000

Increase in outstanding common stock (in shares)

1,829,339

Warrants

Warrants issued (in shares)

482,625

Number of institutional investors

Exercisable period of warrants

'7 years

Exercise price of warrants (in dollars per share)

$20

Grant date fair value

$5,600,000

Number of committed investors who exercised warrants

Number of warrants exercised

214,500

Issuance of shares upon exercise of warrants

63,481

Warrants outstanding

268,125

Preferred stock

Preferred stock, shares authorized

50,000,000

Preferred stock, par value (in dollars per share)

$0.01

Preferred Stock, shares issued

Preferred Stock, shares outstanding

Rental_Income_Details

Rental Income (Details) (USD $)	12 Months Ended
Rental Income (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Minimum future rentals on non-cancelable operating leases of flight equipment	'	'	'
2014	$883,306,000	'	'
2015	840,409,000	'	'
2016	792,918,000	'	'
2017	739,119,000	'	'
2018	696,675,000	'	'
Thereafter	2,253,533,000	'	'
Total	6,205,960,000	'	'
Maintenance reserve revenue	$34,400,000	$25,000,000	$11,000,000
Aircrafts	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2015	17	'	'
2016	13	'	'
2017	12	'	'
2018	11	'	'
Thereafter	140	'	'
Total	193	'	'
Airbus A319-100	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2015	2	'	'
2017	2	'	'
2018	2	'	'
Total	6	'	'
Airbus A320-200	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2015	3	'	'
2016	2	'	'
2017	2	'	'
2018	2	'	'
Thereafter	33	'	'
Total	42	'	'
Airbus A321-200	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2016	1	'	'
2018	1	'	'
Thereafter	5	'	'
Total	7	'	'
Airbus A330-200	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2017	1	'	'
Thereafter	15	'	'
Total	16	'	'
Airbus A330-300	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
Thereafter	5	'	'
Total	5	'	'
Boeing B737-700	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2016	3	'	'
2018	2	'	'
Thereafter	5	'	'
Total	10	'	'
Boeing B737-800	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2015	11	'	'
2016	5	'	'
2017	5	'	'
2018	4	'	'
Thereafter	25	'	'
Total	50	'	'
Boeing B767-300ER	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2015	1	'	'
2016	2	'	'
Total	3	'	'
Boeing B777-200ER	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
Thereafter	1	'	'
Total	1	'	'
Boeing B777-300ER	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2017	1	'	'
Thereafter	5	'	'
Total	6	'	'
Embraer E175-200	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
Thereafter	8	'	'
Total	8	'	'
Embraer E190-100	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
2017	1	'	'
Thereafter	22	'	'
Total	23	'	'
ATR 72-600	'	'	'
Scheduled lease terminations by aircraft type for operating lease portfolio	'	'	'
Thereafter	16	'	'
Total	16	'	'

Concentration_of_risk_Details

Concentration of risk (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	item	item	Dec. 31, 2011
Concentration of risk	'	'	'
Number of countries in which entity leases its aircraft	47	40	'
Minimum percentage of aircraft operated internationally based on net book value	90.00%	'	'
Concentration of risk	'	'	'
Net book value	$7,613,135	$6,251,863	'
Amount of rental revenue	836,516	645,853	332,719
Net book value of aircraft portfolio \| Geographic region	'	'	'
Concentration of risk	'	'	'
Net book value	7,613,135	6,251,863	'
% of Total	100.00%	100.00%	'
Net book value of aircraft portfolio \| Geographic region \| Asia/Pacific	'	'	'
Concentration of risk	'	'	'
Net book value	3,317,118	2,245,002	'
% of Total	43.60%	35.90%	'
Net book value of aircraft portfolio \| Geographic region \| Europe	'	'	'
Concentration of risk	'	'	'
Net book value	2,656,816	2,398,531	'
% of Total	34.90%	38.40%	'
Net book value of aircraft portfolio \| Geographic region \| Central America, South America and Mexico	'	'	'
Concentration of risk	'	'	'
Net book value	829,930	788,189	'
% of Total	10.90%	12.60%	'
Net book value of aircraft portfolio \| Geographic region \| U. S. and Canada	'	'	'
Concentration of risk	'	'	'
Net book value	436,653	457,546	'
% of Total	5.70%	7.30%	'
Net book value of aircraft portfolio \| Geographic region \| The Middle East and Africa	'	'	'
Concentration of risk	'	'	'
Net book value	372,618	362,595	'
% of Total	4.90%	5.80%	'
Number of customers \| Geographic region	'	'	'
Concentration of risk	'	'	'
Number of customers	79	69	'
% of Total	100.00%	100.00%	'
Number of customers \| Geographic region \| Asia/Pacific	'	'	'
Concentration of risk	'	'	'
Number of customers	31	28	'
% of Total	39.20%	40.60%	'
Number of customers \| Geographic region \| Europe	'	'	'
Concentration of risk	'	'	'
Number of customers	21	17	'
% of Total	26.60%	24.60%	'
Number of customers \| Geographic region \| Central America, South America and Mexico	'	'	'
Concentration of risk	'	'	'
Number of customers	12	9	'
% of Total	15.20%	13.00%	'
Number of customers \| Geographic region \| U. S. and Canada	'	'	'
Concentration of risk	'	'	'
Number of customers	8	8	'
% of Total	10.10%	11.60%	'
Number of customers \| Geographic region \| The Middle East and Africa	'	'	'
Concentration of risk	'	'	'
Number of customers	7	7	'
% of Total	8.90%	10.20%	'
Flight equipment revenue	'	'	'
Concentration of risk	'	'	'
Number of customers	0	1	1
Number of countries	1	3	2
Flight equipment revenue \| Alitalia	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	'	71,000	'
% of Total	'	11.00%	'
Flight equipment revenue \| Air France	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	'	'	45,400
% of Total	'	'	13.70%
Flight equipment revenue \| China	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	129,800	75,500	39,600
% of Total	15.50%	11.70%	11.90%
Flight equipment revenue \| Italy	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	'	71,000	'
% of Total	'	11.00%	'
Flight equipment revenue \| France	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	'	67,400	62,200
% of Total	'	10.40%	18.70%
Flight equipment revenue \| Geographic region	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	836,516	645,853	332,719
% of Total	100.00%	100.00%	100.00%
Flight equipment revenue \| Geographic region \| Asia/Pacific	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	314,908	215,537	93,237
% of Total	37.60%	33.40%	28.00%
Flight equipment revenue \| Geographic region \| Europe	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	300,761	253,376	151,566
% of Total	35.90%	39.20%	45.60%
Flight equipment revenue \| Geographic region \| Central America, South America and Mexico	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	107,857	84,341	30,714
% of Total	12.90%	13.10%	9.20%
Flight equipment revenue \| Geographic region \| U. S. and Canada	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	57,366	53,201	39,350
% of Total	6.90%	8.20%	11.80%
Flight equipment revenue \| Geographic region \| The Middle East and Africa	'	'	'
Concentration of risk	'	'	'
Amount of rental revenue	$55,624	$39,398	$17,852
% of Total	6.70%	6.10%	5.40%

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
Income Taxes (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:	'	'	'
Foreign	$71,000	$4,000	$49,000
Deferred:	'	'	'
Federal	102,887,000	71,932,000	29,102,000
State	147,000	118,000	458,000
Income tax expense	103,105,000	72,054,000	29,609,000
Differences between the provision for income taxes and income taxes at the federal statutory income tax rate	'	'	'
Income taxes at statutory federal rate	102,705,000	71,390,000	28,997,000
State income taxes, net of federal income tax effect	95,000	75,000	298,000
Other	305,000	589,000	314,000
Income tax expense	103,105,000	72,054,000	29,609,000
Differences between effective tax rate and federal statutory income tax rate	'	'	'
Income taxes at statutory federal rate (as a percent)	35.00%	35.00%	35.00%
State income taxes, net of federal income tax effect (as a percent)	0.10%	0.10%	0.30%
Other (as a percent)	0.10%	0.20%	0.40%
Effective tax rate on earnings from continuing operations (as a percent)	35.20%	35.30%	35.70%
Assets (Liabilities)	'	'	'
Equity compensation	20,808,000	20,521,000	'
Net operating losses	36,786,000	43,676,000	'
Rents received in advance	21,575,000	14,436,000	'
Accrued bonus	3,578,000	2,457,000	'
Other	11,686,000	6,546,000	'
Aircraft depreciation	-287,696,000	-180,378,000	'
Total (liabilities) assets	-193,263,000	-92,742,000	'
Other disclosures	'	'	'
Windfall tax benefit	3,700,000	3,700,000	'
Federal	'	'	'
Net operating loss	'	'	'
Net operating loss carry-forwards (NOLs)	108,700,000	128,400,000	'
Net operating loss carry-forwards (NOLs) for federal income tax utilized	19,500,000	'	'
State	'	'	'
Net operating loss	'	'	'
Net operating loss carry-forwards (NOLs)	$52,600,000	$49,900,000	'

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	12 Months Ended
Commitments and Contingencies (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments for the acquisition of the aircraft and other equipment	'	'	'
2014	$2,321,392,000	'	'
2015	2,190,517,000	'	'
2016	1,357,736,000	'	'
2017	1,615,789,000	'	'
2018	2,781,520,000	'	'
Thereafter	17,226,533,000	'	'
Total	27,493,487,000	'	'
Non-refundable deposits on the aircraft for which the entity have commitments to purchase	1,075,023,000	564,718,000	'
Office Lease	'	'	'
Office lease expense	2,100,000	2,500,000	2,100,000
Commitments for minimum rentals under the non-cancelable lease term	'	'	'
2014	2,024,000	'	'
2015	2,083,000	'	'
2016	2,129,000	'	'
2017	2,181,000	'	'
2018	2,580,000	'	'
Thereafter	15,387,000	'	'
Total	$26,384,000	'	'
Aircrafts	'	'	'
Aircraft Acquisition	'	'	'
Number of new aircraft	327	'	'
Commitments to acquire aircraft	'	'	'
2014	35	'	'
2015	35	'	'
2016	20	'	'
2017	24	'	'
2018	31	'	'
Thereafter	182	'	'
Total	327	'	'
Airbus A321-200	'	'	'
Commitments to acquire aircraft	'	'	'
2014	13	'	'
2015	6	'	'
Total	19	'	'
Airbus A320/321 NEO	'	'	'
Commitments to acquire aircraft	'	'	'
2016	3	'	'
2017	12	'	'
2018	15	'	'
Thereafter	20	'	'
Total	50	'	'
Airbus A350 XWB	'	'	'
Commitments to acquire aircraft	'	'	'
2018	1	'	'
Thereafter	29	'	'
Total	30	'	'
Number of aircraft subject to reconfirmation	5	'	'
Boeing B737-800	'	'	'
Commitments to acquire aircraft	'	'	'
2014	13	'	'
2015	20	'	'
2016	15	'	'
2017	11	'	'
Total	59	'	'
Boeing 737-8/9 MAX	'	'	'
Commitments to acquire aircraft	'	'	'
2018	8	'	'
Thereafter	96	'	'
Total	104	'	'
Number of aircraft subject to reconfirmation	20	'	'
Boeing B777-300ER	'	'	'
Commitments to acquire aircraft	'	'	'
2014	5	'	'
2015	8	'	'
2016	2	'	'
Total	15	'	'
Boeing 787-9 /10	'	'	'
Commitments to acquire aircraft	'	'	'
2017	1	'	'
2018	7	'	'
Thereafter	37	'	'
Total	45	'	'
ATR 72-600	'	'	'
Commitments to acquire aircraft	'	'	'
2014	4	'	'
2015	1	'	'
Total	5	'	'

Net_Earnings_Per_Share_Details

Net Earnings Per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	item	Dec. 31, 2012	Dec. 31, 2011
Net Earnings Per Share	'	'	'	'	'	'	'	'	'	'	'
Number of classes of common stock	'	'	'	'	'	'	'	'	2	'	'
Numerator	'	'	'	'	'	'	'	'	'	'	'
Net income	$58,847	$48,578	$42,990	$39,996	$39,809	$37,011	$28,172	$26,927	$190,411	$131,919	$53,232
Denominator	'	'	'	'	'	'	'	'	'	'	'
Weighted-average common shares outstanding	'	'	'	'	'	'	'	'	101,529,137	100,991,871	89,592,945
Basic net income per share (in dollars per share)	$0.58	$0.48	$0.42	$0.39	$0.39	$0.37	$0.28	$0.27	$1.88	$1.31	$0.59
Numerator	'	'	'	'	'	'	'	'	'	'	'
Net income	58,847	48,578	42,990	39,996	39,809	37,011	28,172	26,927	190,411	131,919	53,232
Interest on convertible senior notes	'	'	'	'	'	'	'	'	5,783	5,627	560
Net income plus assumed conversions	'	'	'	'	'	'	'	'	$196,194	$137,546	$53,792
Denominator	'	'	'	'	'	'	'	'	'	'	'
Number of shares used in basic computation	'	'	'	'	'	'	'	'	101,529,137	100,991,871	89,592,945
Weighted-average effect of dilutive securities (in shares)	'	'	'	'	'	'	'	'	7,434,413	6,664,592	823,401
Number of shares used in per share computation	'	'	'	'	'	'	'	'	108,963,550	107,656,463	90,416,346
Diluted net income per share (in dollars per share)	$0.55	$0.46	$0.41	$0.38	$0.38	$0.36	$0.28	$0.26	$1.80	$1.28	$0.59
Stock options	'	'	'	'	'	'	'	'	'	'	'
Anti-dilutive securities	'	'	'	'	'	'	'	'	'	'	'
Anti-dilutive securities excluded from the computation of diluted earnings per share (in shares)	'	'	'	'	'	'	'	'	150,000	3,358,408	3,375,908
Restricted Stock Units	'	'	'	'	'	'	'	'	'	'	'
Anti-dilutive securities	'	'	'	'	'	'	'	'	'	'	'
Anti-dilutive securities excluded from the computation of diluted earnings per share (in shares)	'	'	'	'	'	'	'	'	1,569,005	2,117,510	2,613,539

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Recurring basis	'	'
Fair Value Measurements	'	'
Assets	$0	$0
Liabilities	0	0
Non-recurring basis	'	'
Fair Value Measurements	'	'
Assets	0	0
Liabilities	$0	$0

Fair_Value_Measurements_Detail1

Fair Value Measurements (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Book value	'	'
Financial Instruments Not Measured at Fair Value	'	'
Debt financing	$5,853.30	$4,384.70
Fair value, Level 2	'	'
Financial Instruments Not Measured at Fair Value	'	'
Debt financing	$6,113.60	$4,517.60

Stockbased_Compensation_Detail

Stock-based Compensation (Details) (USD $)	12 Months Ended
Stock-based Compensation (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock-based Compensation	'	'	'	'
Number of shares authorized	8,193,088	'	'	'
Number of different vesting criteria	2	'	'	'
Stock-based compensation expense	$21,600,000	$31,700,000	$39,300,000	'
Average assumptions used to value stock-based payments	'	'	'	'
Dividend yield (as a percent)	'	'	0.00%	'
Expected term	'	'	'5 years 10 months 24 days	'
Risk-free interest rate (as a percent)	'	'	2.40%	'
Volatility (as a percent)	'	'	50.20%	'
Stock Options	'	'	'	'
Stock-based Compensation	'	'	'	'
Term of award	'10 years	'	'	'
Vesting period	'3 years	'	'	'
Unrecognized compensation cost	0	'	'	'
Stock-based compensation expense	5,400,000	11,800,000	12,000,000	'
Stock options, shares	'	'	'	'
Balance at the beginning of the period (in shares)	3,358,408	3,375,908	3,225,908	'
Granted (in shares)	'	'	150,000	'
Exercised (in shares)	-500	-7,000	'	'
Forfeited/canceled (in shares)	-250	-10,500	'	'
Balance at the end of the period (in shares)	3,357,658	3,358,408	3,375,908	3,225,908
Vested and exercisable at the end of the period (in shares)	3,357,658	'	'	'
Stock options, exercise Price	'	'	'	'
Balance at the beginning of the period (in dollars per share)	$20.39	$20.39	$20	'
Granted (in dollars per share)	'	'	$28.80	'
Exercised (in dollars per share)	$20	$20	'	'
Forfeited/canceled (in dollars per share)	$20	$20	'	'
Balance at the end of the period (in dollars per share)	$20.39	$20.39	$20.39	$20
Vested and exercisable at the end of the period (in dollars per share)	$20.39	'	'	'
Stock options, Remaining Contractual Term	'	'	'	'
Beginning of the period	'6 years 5 months 26 days	'7 years 5 months 26 days	'8 years 6 months	'9 years 6 months
Granted	'	'	'9 years 3 months 18 days	'
Exercised	'6 years 6 months 14 days	'7 years 6 months	'	'
End of the period	'6 years 5 months 26 days	'7 years 5 months 26 days	'8 years 6 months	'9 years 6 months
Vested and exercisable at the end of the period	'6 years 5 months 26 days	'	'	'
Stock options, Aggregate Intrinsic Value	'	'	'	'
Balance at the beginning of the period	4,813,000	11,968,000	'	'
Exercised	5,000	18,000	5,000	'
Forfeited/canceled	3,000	'	3,000	'
Balance at the end of the period	35,883,000	4,813,000	11,968,000	'
Vested and exercisable at the end of the period	35,883,000	'	'	'
RSUs	'	'	'	'
Stock-based Compensation	'	'	'	'
Number of shares granted	1,569,005	'	'	'
Unrecognized compensation cost	12,400,000	'	'	'
Stock-based compensation expense	$16,200,000	$19,900,000	$27,300,000	'
RSUs \| Service period	'	'	'	'
Stock-based Compensation	'	'	'	'
Vesting period	'3 years	'	'	'
RSUs \| Minimum \| Service period	'	'	'	'
Stock-based Compensation	'	'	'	'
Percentage of shares vested	0.00%	'	'	'
RSUs \| Maximum \| Service period	'	'	'	'
Stock-based Compensation	'	'	'	'
Percentage of shares vested	200.00%	'	'	'
Book-value RSUs \| Minimum	'	'	'	'
Stock-based Compensation	'	'	'	'
Vesting period	'3 years	'	'	'
Book-value RSUs \| Maximum	'	'	'	'
Stock-based Compensation	'	'	'	'
Vesting period	'4 years	'	'	'
TSR RSUs	'	'	'	'
Stock-based Compensation	'	'	'	'
Number of shares granted	390,511	'	'	'

Stockbased_Compensation_Detail1

Stock-based Compensation (Details 2) (USD $)	12 Months Ended
Stock-based Compensation (Details 2) (USD $)	Dec. 31, 2013
Options outstanding	'
Number of shares	3,357,658
Weighted-average remaining life	'6 years 5 months 26 days
Options exercisable and vested	'
Number of Shares	3,357,658
Weighted-Average Remaining Life	'6 years 5 months 26 days
$20.00	'
Stock options outstanding and exercisable and vested by exercise price range	'
Exercise price (in dollars per share)	20
Options outstanding	'
Number of shares	3,207,658
Weighted-average remaining life	'6 years 5 months 16 days
Options exercisable and vested	'
Number of Shares	3,207,658
Weighted-Average Remaining Life	'6 years 5 months 16 days
$28.80	'
Stock options outstanding and exercisable and vested by exercise price range	'
Exercise price (in dollars per share)	28.8
Options outstanding	'
Number of shares	150,000
Weighted-average remaining life	'7 years 3 months 25 days
Options exercisable and vested	'
Number of Shares	150,000
Weighted-Average Remaining Life	'7 years 3 months 25 days

Stockbased_Compensation_Detail2

Stock-based Compensation (Details 3) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013
RSUs	'
Unvested restricted stock units, Number of Shares	'
Unvested at the beginning of the period (in shares)	2,117,510
Granted (in shares)	422,366
Vested (in shares)	-959,873
Forfeited/canceled (in shares)	-10,998
Unvested at the end of the period (in shares)	1,569,005
Expected to vest after the end of the period (in shares)	1,557,046
Unvested restricted stock units, Weighted-Average Grant-Date Fair Value	'
Unvested at the beginning of the period (in dollars per share)	$21.40
Granted (in dollars per share)	$31.96
Vested (in dollars per share)	$20.91
Forfeited/canceled (in dollars per share)	$28.66
Unvested at the end of the period (in dollars per share)	$24.50
Expected to vest after the end of the period (in dollars per share)	$24.49
Outstanding RSUs expected to vest	'
2014 (in shares)	922,485
2015 (in shares)	273,220
2016 (in shares)	88,209
Stock-based compensation expense	'
Unrecognized compensation cost	$12.40
Weighted-average period of recognition of unrecognized stock-based compensation cost	'1 year 1 month 6 days
TSR RSUs	'
Unvested restricted stock units, Number of Shares	'
Granted (in shares)	201,058

Litigation_Details

Litigation (Details) (Breach of contract for the sale of goods, USD $)	0 Months Ended	1 Months Ended
In Millions, unless otherwise specified	Aug. 15, 2013	Jan. 31, 2010	Dec. 31, 2013
	Aug. 15, 2013	item	item
Breach of contract for the sale of goods	'	'	'
Litigation	'	'	'
Number of cause of action not asserted against the Company	'	'	1
Number of aircraft to be sold by ILFC under the agreement	'	25	'
Minimum compensatory damages sought under cross-complaint	$500	'	'

Related_party_transactions_Det

Related party transactions (Details) (USD $)

1 Months Ended

Sep. 30, 2013

Dec. 31, 2011

Mar. 31, 2011

Oct. 31, 2011

Jun. 30, 2013

Nov. 30, 2013

Dec. 31, 2012

Apr. 30, 2012

Mar. 31, 2011

Commonwealth Bank of Australia

Affiliates of Ares Management LLC, Leonard Green & Partners, L.P. and WL Ross & Co. LLC

Servicing Agreement

Unsecured revolving loan

Unsecured term loan 4.05 percent

Unsecured term loan 3.48 percent

Class A Common Stock

Commonwealth Bank of Australia

Maximum

item

Class A Common Stock

Minimum

Related party transactions

Beneficial ownership interest owned (as a percent)

5.00%

Fees under the Servicing Agreement in connection with acquisition of aircraft and management of current lease

$980,000

$2,700,000

$650,000

Term of debt

'3 years

'5 years

Increase in borrowings

25,000,000

12,000,000

13,000,000

Variable interest basis

'LIBOR

Interest margin (as a percent)

2.00%

Interest rate (as a percent)

4.05%

3.48%

Financial payment made to Mr. Udvar-Hazy

Financial benefits received from Mr. Udvar-Hazy

Number of subsidiaries of Commonwealth Bank of Australia included in service agreement

Number of directors that are executives of a related party

Gain on sale of the aircraft

1,900,000

Number of shares issued in a secondary public offering previously held by affiliates

8,000,000

10,138,888

Share price of common stock offered in a secondary public offering previously held by affiliates

$26.75

$31.50

Reimbursement for deposits paid by Mr. Udvar-Hazy

$6,800,000

Percentage of interest payment per annum to Mr. Udvar-Hazy

3.90%

Quarterly_financial_data_unaud2

Quarterly financial data (unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly financial data (unaudited)	'	'	'	'	'	'	'	'	'	'	'
Revenues	$242,901	$215,905	$207,872	$191,997	$190,095	$174,925	$158,173	$132,553	$858,675	$655,746	$336,741
Income before taxes	90,571	74,888	66,311	61,672	61,286	57,193	43,884	41,610	293,442	203,973	82,841
Net income	$58,847	$48,578	$42,990	$39,996	$39,809	$37,011	$28,172	$26,927	$190,411	$131,919	$53,232
Net income per share:	'	'	'	'	'	'	'	'	'	'	'
Basic (in dollars per share)	$0.58	$0.48	$0.42	$0.39	$0.39	$0.37	$0.28	$0.27	$1.88	$1.31	$0.59
Diluted (in dollars per share)	$0.55	$0.46	$0.41	$0.38	$0.38	$0.36	$0.28	$0.26	$1.80	$1.28	$0.59

Subsequent_events_Details

Subsequent events (Details) (USD $)	12 Months Ended	0 Months Ended
	Dec. 31, 2013	Feb. 26, 2014
		Subsequent Event
		Dividend declared
Subsequent Events	'	'
Quarterly cash dividends on common stock	$0.11	$0.03