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Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract] |  |  |  |
Net income | $ 34,119 | $ 20,099 | $ 50,681 | $ 52,409
Foreign currency translation adjustments | 14,263 | 9,048 | 6,033 | 4,473
Net change in: |  |  |  |
Deferred gains (losses) on cash flow hedges, net of taxes of $62, $196, $28 and $333, respectively | (154) | (495) | (108) | (836)
Unrecognized retirement obligations, net of taxes of $2,293, $1,787, $6,869 and $5,438, respectively | 3,794 | 3,013 | 11,394 | 8,961
Net current period other comprehensive income (loss) | 17,903 | 11,566 | 17,319 | 12,598
Comprehensive income | $ 52,022 | $ 31,665 | $ 68,000 | $ 65,007

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