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Stockholders' Equity and Accumulated Other Comprehensive Loss (Details) (USD $) | 0 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 19, 2012 | Dec. 31, 2012 | Mar. 30, 2013 | Mar. 31, 2012 | Dec. 31, 2012
Components of and changes in accumulated other comprehensive loss, net of tax |  |  |  |  |
Balance at beginning of the period |  |  | $ (171,544,000) |  |
Other comprehensive income (loss) before reclassifications |  |  | (5,483,000) |  |
Amounts reclassified from accumulated other comprehensive loss |  |  | 982,000 |  |
Other comprehensive income (loss), net of tax |  |  | (4,501,000) | 2,930,000 |
Balance at end of the period |  | (171,544,000) | (176,045,000) |  | (171,544,000)
Net assets of Sugar segment denominated in Argentine pesos |  |  | 197,474,000 |  |
Net assets of Sugar segment denominated in U.S. dollars |  |  | 4,234,000 |  |
Income tax rate for foreign currency translation gains and losses (as a percent) |  |  | 35.00% |  |
Effective income tax rate for components of accumulated other comprehensive loss (as a percent) |  |  | 39.00% |  |
Unrecognized pension cost related to employees at certain subsidiaries |  |  | 20,737,000 |  |
Tax benefit recorded on unrecognized pension cost |  |  | 0 |  |
Stock repurchase programs, authorized amount | 100,000,000 |  |  |  |
Remaining authorized repurchase amount under November 2009 share repurchase program |  |  | 32,838,000 |  |
Common shares repurchased |  |  | 147 |  |
Repurchase of common stock |  |  | 367,000 |  |
Common stock dividend declared and paid (in dollars per share) |  | $ 12.00 |  |  |
Common stock dividend historical amount on a quarterly basis (in dollars per share) |  |  |  |  | $ 0.75
Common stock dividend historical amount on annual (in dollars per share) |  |  |  |  | $ 3.00
Prepayment of dividend for 2013 |  | $ 3.00 |  |  | $ 3.00
Prepayment of dividend for 2014 |  | $ 3.00 |  |  | $ 3.00
Prepayment of dividend for 2015 |  | $ 3.00 |  |  | $ 3.00
Prepayment of dividend for 2016 |  | $ 3.00 |  |  | $ 3.00
Cumulative Foreign Currency Translation Adjustment |  |  |  |  |
Components of and changes in accumulated other comprehensive loss, net of tax |  |  |  |  |
Balance at beginning of the period |  |  | (109,457,000) |  |
Other comprehensive income (loss) before reclassifications |  |  | (6,122,000) |  |
Other comprehensive income (loss), net of tax |  |  | (6,122,000) |  |
Balance at end of the period |  |  | (115,579,000) |  |
Unrealized Gain (Loss) on Investments |  |  |  |  |
Components of and changes in accumulated other comprehensive loss, net of tax |  |  |  |  |
Balance at beginning of the period |  |  | 2,232,000 |  |
Other comprehensive income (loss) before reclassifications |  |  | 639,000 |  |
Amounts reclassified from accumulated other comprehensive loss |  |  | (210,000) |  |
Other comprehensive income (loss), net of tax |  |  | 429,000 |  |
Balance at end of the period |  |  | 2,661,000 |  |
Unrealized Loss on Cash Flow Hedges |  |  |  |  |
Components of and changes in accumulated other comprehensive loss, net of tax |  |  |  |  |
Balance at end of the period |  | (113,000) | (113,000) |  | (113,000)
Unrecognized Pension Cost |  |  |  |  |
Components of and changes in accumulated other comprehensive loss, net of tax |  |  |  |  |
Balance at beginning of the period |  |  | (64,206,000) |  |
Amounts reclassified from accumulated other comprehensive loss |  |  | 1,192,000 |  |
Other comprehensive income (loss), net of tax |  |  | 1,192,000 |  |
Balance at end of the period |  |  | $ (63,014,000) |  |

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