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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net loss | $ (8,008) | $ (25,678)
Adjustments to reconcile net loss to net cash provided by operating activities: |  |
Unrealized loss on forward and derivative contracts | 7,857 | 0
Unrealized gain on E.ON contingent obligation | (706) | (706)
Lower of cost or NRV inventory adjustment | (4,102) | (871)
Depreciation and amortization | 42,222 | 42,504
Pension and other postretirement benefits | 1,524 | 1,345
Deferred income taxes | (757) | (6,513)
Equity in earnings of joint ventures, net of dividends | (145) | (736)
Change in operating assets and liabilities: |  |
Accounts receivable - net | (30,040) | (4,829)
Due from affiliates | 6,156 | 2,906
Inventories | (16,946) | 2,471
Prepaid and other current assets | 3,834 | 12,516
Accounts payable, trade | (947) | (1,019)
Due to affiliates | 3,604 | 1,560
Accrued and other current liabilities | (4,447) | (485)
Other - net | 3,994 | 1,138
Net cash provided by operating activities | 3,093 | 23,603
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Purchase of property, plant and equipment | (18,843) | (7,734)
Proceeds from sale of Ravenswood | 13,585 | 0
Restricted and other cash deposits | 195 | (1,878)
Net cash used in investing activities | (5,063) | (9,612)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Borrowings under revolving credit facilities | 720 | 595
Repayments under revolving credit facilities | (720) | (595)
Issuance of common stock | 240 | 0
Net cash provided by financing activities | 240 | 0
CHANGE IN CASH AND CASH EQUIVALENTS | (1,730) | 13,991
Cash and cash equivalents, beginning of period | 132,403 | 115,393
Cash and cash equivalents, end of period | $ 130,673 | $ 129,384

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3044-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open agreements to purchase or sell mineral resources, energy, and agricultural products at some future point held at each balance sheet date, that was included in earnings for the period. + 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 (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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