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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income (loss) | $ (161,586) | $ 117,817 | $ (24,154)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |
Depreciation and amortization | 284,969 | 264,507 | 259,642
Stock based compensation expense | 7,568 | 5,368 | 5,318
Loss on sale of property and equipment |  |  | 4,016
Gain from equity ownership in TRIP Airlines |  |  | (24,922)
Gain from early extinguishment of debt | (1,279) | (33,660) |
Capitalized Brasilia EMB-120 engine overhauls |  |  | (18,812)
Special items | 465,649 |  | 74,777
Net increase (decrease) in deferred income taxes | (83,441) | 73,844 | 5,054
Changes in operating assets and liabilities: |  |  |
Decrease (increase) in restricted cash | (27) | 3,366 | 637
Decrease in receivables | 15,260 | 21,076 | 25,540
Increase in income tax receivable | (4,118) | (92) | (1,939)
Increase in inventories | (1,986) | (2,860) | (890)
Decrease (increase) in other current assets and prepaid aircraft rents | 37,569 | (28,598) | (25,985)
Decrease in deferred aircraft credits | (8,108) | (8,635) | (7,672)
Increase (decrease) in accounts payable and accrued aircraft rents | (47,563) | 9,690 | 5,852
Increase (decrease) in other current liabilities | 3,758 | (4,498) | 13,668
NET CASH PROVIDED BY OPERATING ACTIVITIES | 506,665 | 417,325 | 290,130
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchases of marketable securities | (2,511,388) | (1,170,439) | (326,964)
Sales of marketable securities | 2,388,168 | 1,299,069 | 398,148
Proceeds from the sale of aircraft, property and equipment | 3,008 | 10,308 | 9,473
Proceeds from installment payment from sale of equity shares in TRIP Airlines |  |  | 17,237
Proceeds from settlement of residual value guarantee aircraft agreements | 90,000 |  |
Acquisition of property and equipment: |  |  |
Aircraft and rotable spare parts | (1,138,963) | (710,871) | (653,473)
Deposits on aircraft | (650) |  |
Buildings and ground equipment | (14,350) | (10,405) | (21,966)
Return of deposits on aircraft |  | 1,850 |
Decrease (increase) in other assets | 7,097 | 10,772 | (7,681)
NET CASH USED IN INVESTING ACTIVITIES | (1,177,078) | (569,716) | (585,226)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from issuance of long-term debt | 926,069 | 591,881 | 460,600
Principal payments on long-term debt | (302,158) | (354,277) | (185,357)
Net proceeds from issuance of common stock | 8,142 | 9,754 | 2,692
Purchase of treasury stock |  | (18,726) | (8,414)
Decrease (increase) in debt issuance cost | (8,653) | 2,779 | (4,591)
Payment of cash dividends | (9,256) | (8,260) | (8,195)
NET CASH PROVIDED BY FINANCING ACTIVITIES | 614,144 | 223,151 | 256,735
Increase (Decrease) in cash and cash equivalents | (56,269) | 70,760 | (38,361)
Cash and cash equivalents at beginning of period | 203,035 | 132,275 | 170,636
CASH AND CASH EQUIVALENTS AT END OF PERIOD | 146,766 | 203,035 | 132,275
Non-cash investing activities: |  |  |
Acquisition of rotable spare parts | 5,688 |  |
Cash paid during the period for: |  |  |
Interest, net of capitalized amounts | 76,589 | 80,657 | 67,763
Income taxes | $ 1,212 | $ 5,104 | $ 2,066

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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26853-111562 + Details
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- References No definition available. + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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