Currency Translation Adjustments | Net Actuarial Loss (1) | Prior Service Credit (1) | Transition Obligation (1) | Unrealized Gain on Derivatives | Accumulated Other Comprehensive Loss | ||||||||||||||
(In thousands) | |||||||||||||||||||
January 1, 2011 | $ | 45,987 | (428,532 | ) | 5,912 | 34 | — | (376,599 | ) | ||||||||||
Amortization | — | 13,146 | (1,621 | ) | (22 | ) | — | 11,503 | |||||||||||
Current period change | (17,768 | ) | (184,301 | ) | — | — | — | (202,069 | ) | ||||||||||
December 31, 2011 | 28,219 | (599,687 | ) | 4,291 | 12 | — | (567,165 | ) | |||||||||||
Amortization | — | 20,315 | (1,657 | ) | — | — | 18,658 | ||||||||||||
Current period change | 29,629 | (68,753 | ) | — | — | 12 | (39,112 | ) | |||||||||||
December 31, 2012 | 57,848 | (648,125 | ) | 2,634 | 12 | 12 | (587,619 | ) | |||||||||||
Amortization | — | 22,832 | (1,340 | ) | (12 | ) | — | 21,480 | |||||||||||
Current period change | (22,079 | ) | 147,410 | 2,466 | — | 94 | 127,891 | ||||||||||||
December 31, 2013 | $ | 35,769 | (477,883 | ) | 3,760 | — | 106 | (438,248 | ) |
(1) | These amounts are included in the computation of net periodic pension cost. See Note 24, "Employee Benefit Plans," for further information. |