CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities
Net income	$ 184,661	$ 95,450
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of flight equipment	220,711	189,414
Settlement		36,000
Stock-based compensation	7,740	7,724
Deferred taxes	101,601	52,696
Amortization of debt discounts and issuance costs	14,549	15,363
Gain on aircraft sales, trading and other activity	(37,713)	(23,987)
Changes in operating assets and liabilities:
Other assets	2,367	21,124
Accrued interest and other payables	7,298	2,331
Rentals received in advance	3,556	5,938
Net cash provided by operating activities	504,770	402,053
Investing Activities
Acquisition of flight equipment under operating lease	(1,138,130)	(1,336,979)
Payments for deposits on flight equipment purchases	(437,721)	(362,578)
Proceeds from aircraft sales, trading and other activity	507,202	668,989
Acquisition of furnishings, equipment and other assets	(117,132)	(129,472)
Net cash used in investing activities	(1,185,781)	(1,160,040)
Financing Activities
Issuance of common stock upon exercise of options		40
Cash dividends paid	(10,271)	(8,198)
Tax withholdings on stock-based compensation	(5,890)	(5,302)
Net change in unsecured revolving facilities	938,000	126,000
Proceeds from debt financings	690,754	712,134
Payments in reduction of debt financings	(962,403)	(260,812)
Net change in restricted cash	(7,862)	(1,064)
Debt issuance costs	(3,157)	(3,223)
Security deposits and maintenance reserve receipts	93,261	90,936
Security deposits and maintenance reserve disbursements	(35,362)	(12,354)
Net cash provided by financing activities	697,070	638,157
Net increase (decrease) in cash	16,059	(119,830)
Cash and cash equivalents at beginning of period	156,675	282,819
Cash and cash equivalents at end of period	172,734	162,989
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest, including capitalized interest of $19,521 and $20,702 at June 30, 2016 and 2015, respectively	151,165	121,767
Supplemental Disclosure of Noncash Activities
Buyer furnished equipment, capitalized interest, deposits on flight equipment purchases and seller financing applied to acquisition of flight equipment and other assets applied to payments for deposits on flight equipment purchases	525,991	664,128
Cash dividends declared, not yet paid	$ 5,142	$ 4,103