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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Statement of Comprehensive Income [Abstract] |  |  |
Net income (loss) | $ (252,415) | $ (59,310) | $ 126,474
Other comprehensive income (loss) before income tax effect: |  |  |
Foreign currency cash flow hedges reclassified to net income (loss) | 4,295 | (186) | (186)
Defined benefit plans and other postretirement benefits: |  |  |
Net gain (loss) arising during the period | (9,522) | 5,553 | (41,995)
Prior service benefit arising during the period | 0 | 1,758 | (1,299)
Amortization of prior service benefit during the period | (2,675) | (8,351) | (3,504)
Amortization of net loss during the period | 8,190 | 7,794 | 10,312
Other comprehensive income (loss) before income tax effect | 288 | 6,568 | (36,672)
Income tax effect | (1,531) | (1,536) | (1,829)
Other comprehensive income (loss) | (1,243) | 5,032 | (38,501)
Total comprehensive income (loss) | $ (253,658) | $ (54,278) | $ 87,973

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- Definition The amount of net gains or losses on foreign currency cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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