v3.5.0.2

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2016 | Jun. 30, 2015
Operating activities: |  |
Net (loss) earnings | $ (4,655) | $ 16,817
Adjustments to reconcile net earnings to net cash provided by operating activities: |  |
Depreciation and amortization | 34,761 | 36,511
Deferred income taxes | (3,572) | 10,063
Gain on asset dispositions | (3,939) | (73)
Equity in loss of unconsolidated affiliate | 76 | 174
Inventory valuation reserves | 2,613 | (254)
Changes in operating assets and liabilities | (24,485) | 6,070
Net cash provided by operating activities | 799 | 69,308
Investing activities: |  |
Purchase of property and equipment | (39,908) | (29,502)
Proceeds from asset dispositions | 10,998 | 567
Purchase of short-term investments | (151,436) | (290,469)
Proceeds from sale of short-term investments | 148,838 | 257,454
Payments of deposits on aircraft | (131) | (131)
Net cash used in investing activities | (31,639) | (62,081)
Financing activities: |  |
Proceeds from line of credit | 150,800 | 119,740
Payments on line of credit | (113,300) | (127,240)
Repurchase of common stock | (500) | (2,338)
Net cash provided by (used in) financing activities | 37,000 | (9,838)
Increase (decrease) in cash | 6,160 | (2,611)
Cash, beginning of period | 2,407 | 6,270
Cash, end of period | 8,567 | 3,659
Cash paid during the period for: |  |
Interest | 14,329 | 13,696
Income taxes | 1,879 | 3,061
Noncash investing activities: |  |
Other current liabilities and accrued payables related to purchase of property and equipment | $ 64 | $ 27,757

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