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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Net income (loss) | $ 13,829 | $ (309,445)
Net unrealized gain on derivative instruments qualifying as hedges: |  |
Reclassification adjustment for loss on derivative instruments included in net income (loss), net of tax of $57 and $60 for the three months ended in 2016 and 2015, respectively | 92 | 99
Postretirement liability adjustment: |  |
Amortization of postretirement liability (gains) losses included in net periodic benefit cost, net of tax of $(969) and $230 for the three months ended in 2016 and 2015, respectively | (1,595) | 375
Foreign currency translation adjustment: |  |
Foreign currency translation adjustment recognized during the period, net of tax of $15 and $(68) for the three months ended in 2016 and 2015, respectively | 25 | (112)
Reclassification adjustment for loss on foreign currency translation adjustment included in net income, net of tax of $0 and $490 for the three months ended in 2016 and 2015, respectively | 0 | 802
Foreign currency translation adjustment | 25 | 690
Net unrealized gain on available-for-sale investments: |  |
Net unrealized gain (loss) on available-for-sale investments arising during the period, net of tax of $5 and $(11) for the three months ended in 2016 and 2015, respectively | 8 | (21)
Reclassification adjustment for loss on available-for-sale investments included in net income, net of tax of $19 and $19 for the three months ended in 2016 and 2015, respectively | 36 | 36
Net unrealized gain on available-for-sale investments | 44 | 15
Other comprehensive income (loss) | (1,434) | 1,179
Comprehensive income (loss) | 12,395 | (308,266)
Comprehensive loss attributable to noncontrolling interest | (11,040) | (3,528)
Comprehensive income (loss) attributable to common stockholders | $ 23,435 | $ (304,738)

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