Accumulated Other Comprehensive Loss The following table sets forth the after-tax components of comprehensive loss: | | | | | | | | | | | | | | | | | | | | | | | | | | Foreign Currency Translation Adjustment | | Net Actuarial Loss Associated with Postretirement Plans and Workers’ Compensation Obligations | | Prior Service Credit (Cost) Associated with Postretirement Plans | | Cash Flow Hedges | | Available-For-Sale Securities | | Total Accumulated Other Comprehensive Loss | | (Dollars in millions) | December 31, 2013 | $ | (70.5 | ) | | $ | (205.8 | ) | | $ | 12.0 |
| | $ | (155.7 | ) | | $ | 0.8 |
| | $ | (419.2 | ) | Net change in fair value | — |
| | — |
| | — |
| | (195.0 | ) | | (3.7 | ) | | (198.7 | ) | Reclassification from other comprehensive income to earnings | — |
| | 31.0 |
| | 1.7 |
| | (10.2 | ) | | 2.9 |
| | 25.4 |
| Current period change | (41.0 | ) | | (142.7 | ) | | 11.4 |
| | — |
| | — |
| | (172.3 | ) | December 31, 2014 | (111.5 | ) | | (317.5 | ) | | 25.1 |
| | (360.9 | ) | | — |
| | (764.8 | ) | Net change in fair value | — |
| | — |
| | — |
| | (131.3 | ) | | — |
| | (131.3 | ) | Reclassification from other comprehensive income to earnings | — |
| | 35.6 |
| | (3.7 | ) | | 251.7 |
| | — |
| | 283.6 |
| Current period change | (34.9 | ) | | 18.1 |
| | 10.4 |
| | — |
| | — |
| | (6.4 | ) | December 31, 2015 | (146.4 | ) | | (263.8 | ) | | 31.8 |
| | (240.5 | ) | | — |
| | (618.9 | ) | Net change in fair value | — |
| | — |
| | — |
| | — |
| | — |
| | — |
| Reclassification from other comprehensive income to earnings | — |
| | 21.0 |
| | (5.6 | ) | | 146.3 |
| | — |
| | 161.7 |
| Current period change | (1.8 | ) | | (13.5 | ) | | (4.5 | ) | | — |
| | — |
| | (19.8 | ) | December 31, 2016 | $ | (148.2 | ) | | $ | (256.3 | ) | | $ | 21.7 |
| | $ | (94.2 | ) | | $ | — |
| | $ | (477.0 | ) |
The following table provides additional information regarding items reclassified out of "Accumulated other comprehensive loss" into earnings during the years ended December 31, 2016 and 2015: | | | | | | | | | | | | | | Amount reclassified from accumulated other comprehensive loss (1) | | | | | Year Ended December 31 | | | Details about accumulated other comprehensive loss components | | 2016 | | 2015 | | Affected line item in the consolidated statement of operations | | | (Dollars in millions) | | | Net actuarial loss associated with postretirement plans and workers' compensation obligations: | | | | | | | Postretirement health care and life insurance benefits | | $ | (20.4 | ) | | $ | (24.9 | ) | | Operating costs and expenses | Defined benefit pension plans | | (20.5 | ) | | (32.9 | ) | | Operating costs and expenses | Defined benefit pension plans | | (4.2 | ) | | (6.7 | ) | | Selling and administrative expenses | Workers' compensation amortization | | 11.7 |
| | 8.0 |
| | Operating costs and expenses | | | (33.4 | ) | | (56.5 | ) | | Total before income taxes | | | 12.4 |
| | 20.9 |
| | Income tax benefit | | | $ | (21.0 | ) | | $ | (35.6 | ) | | Total after income taxes | | | | | | | | Prior service credit (cost) associated with postretirement plans: | | | | | | | Postretirement health care and life insurance benefits | | $ | 9.2 |
| | $ | 6.8 |
| | Operating costs and expenses | Defined benefit pension plans | | (0.3 | ) | | (1.0 | ) | | Operating costs and expenses | | | 8.9 |
| | 5.8 |
| | Total before income taxes | | | (3.3 | ) | | (2.1 | ) | | Income tax benefit | | | $ | 5.6 |
| | $ | 3.7 |
| | Total after income taxes | | | | | | | | Cash flow hedges: | | | | | | | Foreign currency forward contracts | | $ | (145.6 | ) | | $ | (316.4 | ) | | Operating costs and expenses | Fuel and explosives commodity swaps | | (86.1 | ) | | (120.4 | ) | | Operating costs and expenses | Coal trading commodity futures, swaps and options | | — |
| | 51.8 |
| | Other revenues | Insignificant items | | (0.5 | ) | | (0.7 | ) | | | | | (232.2 | ) | | (385.7 | ) | | Total before income taxes | | | 85.9 |
| | 134.0 |
| | Income tax provision | | | $ | (146.3 | ) | | $ | (251.7 | ) | | Total after income taxes |
(1) Presented as gains (losses) in the consolidated statements of operations. Comprehensive loss differs from net loss by the amount of unrealized gain or loss resulting from valuation changes of the Company’s cash flow hedges (see Note 8. "Derivatives and Fair Value Measurements" and Note 9. "Coal Trading" for information related to the Company’s cash flow hedges), changes in the fair value of available-for-sale securities (see Note 7. "Investments" for information related to the Company's investments in available-for-sale securities), the change in actuarial loss and prior service cost of postretirement plans and workers' compensation obligations (see Note 17. "Postretirement Health Care and Life Insurance Benefits," Note 18. "Pension and Savings Plans" and Note 27. "Matters Related to the Bankruptcy of Patriot Coal Corporation" for information related to the Company's postretirement and pension plans) and foreign currency translation adjustment related to the Company's investments in Middlemount, whose functional currency is the Australian dollar. The values of the Company’s cash flow hedging instruments are primarily affected by the U.S. dollar/Australian dollar exchange rate and changes in the prices of certain coal and diesel fuel products. |