CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities
Net income	$ 131,564	$ 92,110
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of flight equipment	204,457	154,805
Stock-based compensation	17,839	24,548
Deferred taxes	71,307	50,573
Amortization of discounts and deferred debt issue costs	16,571	11,553
Changes in operating assets and liabilities:
Other assets	7,917	(20,114)
Accrued interest and other payables	30,679	48,085
Rentals received in advance	12,452	10,936
Net cash provided by operating activities	492,786	372,496
Investing Activities
Acquisition of flight equipment under operating lease	(955,587)	(1,651,831)
Payments for deposits on flight equipment purchases	(631,758)	(185,373)
Acquisition of furnishings, equipment and other assets	(80,226)	(71,484)
Net cash used in investing activities	(1,667,571)	(1,908,688)
Financing Activities
Issuance of common stock		43
Cash dividends paid	(5,065)
Tax withholdings related to vesting of restricted stock units	(13,609)	(7,312)
Net change in unsecured revolving facilities	819,000	(28,000)
Proceeds from debt financings	615,871	2,042,389
Payments in reduction of debt financings	(355,975)	(344,912)
Restricted cash	20,791	(15,627)
Debt issue costs	(29,020)	(39,487)
Security deposits and maintenance reserve receipts	135,611	108,968
Security deposits and maintenance reserve disbursements	(21,228)	(21,994)
Net cash provided by financing activities	1,166,376	1,694,068
Net increase/(decrease) in cash	(8,409)	157,876
Cash and cash equivalents at beginning of period	230,089	281,805
Cash and cash equivalents at end of period	221,680	439,681
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest, including capitalized interest of $23,124 and $13,698 for the nine months ended September 30, 2013 and 2012	129,463	68,307
Supplemental Disclosure of Noncash Activities
Buyer furnished equipment, capitalized interest, deposits on flight equipment purchases and seller financing applied to acquisition of flight equipment	245,414	136,850
Cash dividends declared, not yet paid	$ 2,544