For the Years Ended December 31, 2011, 2010 and 2009
The components of accumulated other comprehensive income (loss) are shown below:
| At December 31, | ||
| 2011 | 2010 | |
| In thousands | ||
| Changes in pension and post-retirement benefit plans | $ (96,111 ) | $ (66,604 ) |
| Foreign currency translation adjustment | (21,365) | (18,880) |
| Unrealized gain (loss) on derivative instruments | (470) | (972) |
| Accumulated other comprehensive income (loss) | $ (117,946) | $ (86,456) |
No amounts were reclassified from other comprehensive income into net income for foreign currency translation adjustments in 2011 and 2010.