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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Operating activities: |  |
Net loss | $ (91,581) | $ (2,870)
Non-cash elements included in net loss: |  |
Depreciation, depletion and amortization | 143,040 | 108,814
Gain on disposition of investments | (927) | 0
Unrealized loss on investments | 1,159 | 2,461
Adjustment of inventory to market value | 1,399 | 7,232
Loss (gain) on disposition of properties, plants, equipment, and mineral interests | 4,666 | (3,374)
Provision for reclamation and closure costs | 5,298 | 3,957
Stock compensation | 4,758 | 4,672
Deferred income taxes | (26,616) | (4,637)
Amortization of loan origination fees | 1,919 | 1,471
Loss (gain) on derivative contracts | 5,824 | (15,208)
Foreign exchange loss (gain) | 6,263 | (2,032)
Other non-cash items, net | 0 | (37)
Change in assets and liabilities, net of business acquisitions: |  |
Accounts receivable | (10,215) | (4,424)
Inventories | (6,501) | (18,954)
Other current and non-current assets | 14,913 | (5,569)
Accounts payable and accrued liabilities | 5,616 | 12,308
Accrued payroll and related benefits | 4,506 | (4,207)
Accrued taxes | (5,733) | 845
Accrued reclamation and closure costs and other non-current liabilities | 5,821 | (5,238)
Cash provided by operating activities | 63,609 | 75,210
Investing activities: |  |
Additions to properties, plants, equipment and mineral interests | (97,338) | (83,285)
Acquisition of Klondex, net of cash and restricted cash acquired | 0 | (139,326)
Proceeds from sale of investments | 1,760 | 0
Proceeds from disposition of properties, plants, equipment and mineral interests | 86 | 722
Insurance proceeds received for damaged property | 0 | 4,377
Purchases of investments | (389) | (31,971)
Maturities of investments | 0 | 64,895
Net cash used in investing activities | (95,881) | (184,588)
Financing activities: |  |
Proceeds from sale of common stock, net of offering costs | 0 | 3,085
Acquisition of treasury shares | (2,239) | (2,694)
Dividends paid to common shareholders | (3,655) | (3,193)
Dividends paid to preferred shareholders | (414) | (414)
Credit availability and debt issuance fees | (587) | (2,460)
Borrowings on debt | 245,000 | 78,024
Repayments of debt | (195,000) | (82,036)
Repayments of finance leases | (5,484) | (5,992)
Net cash provided by (used in) financing activities | 37,621 | (15,680)
Effect of exchange rates on cash | 257 | (215)
Net increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents | 5,606 | (125,273)
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period | 28,414 | 187,139
Cash, cash equivalents and restricted cash and cash equivalents at end of period | 34,020 | 61,866
Significant non-cash investing and financing activities: |  |
Addition of finance lease obligations | 6,506 | 7,008
Recognition of operating lease liabilities and right-of-use assets | 22,365 | 0
Common stock issued for the acquisition of other companies | 0 | 252,544
Payment of accrued compensation in stock | 8,274 | 4,863
Marketable equity securities received for sale of mineral interest | $ 2,257 | $ 0

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