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Equity (Tables) | 12 Months Ended
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Dec. 31, 2011
Equity [Abstract] |
Components of accumulated other comprehensive loss | Components of accumulated other comprehensive loss are as follows:
(In thousands) |  | 2011 |  |  | 2010 |
Cumulative foreign currency translation adjustment |  | $ | (10,396 | ) |  | $ | (9,480 | )
Unrecognized prior service cost, net of income tax |  |  | (13 | ) |  |  | (13 | )
Unrecognized actuarial net loss, net of income tax |  |  | (38,667 | ) |  |  | (28,289 | )
Unrecognized derivative gains, net of income tax |  |  | (422 | ) |  |  | 566 |
Unrealized gain on marketable securities, net of income tax |  |  | 89 |  |  |  | 170 |
Accumulated other comprehensive loss |  | $ | (49,409 | ) |  | $ | (37,046 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References No definition available. + Details
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