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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME |  |  |  |
Net actuarial gain (loss), tax | $ 1,515 | $ (116) | $ 349 | $ (3,488)
Pension settlement expense, tax | 233 | 353 | 668 | 1,789
Amortization of unrecognized net periodic benefit costs, tax | 396 | 261 | 796 | 467
Change in unrealized income (loss) on interest rate swap, tax | 158 |  | (77) |
Change in foreign currency translation, tax | $ 61 | $ 65 | $ (126) | $ 41

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