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STOCKHOLDERS' EQUITY (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2005 | Dec. 31, 2003
Accumulated other comprehensive loss, pre-tax amounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized net periodic benefit costs | $ (17,044,000) |  |  |  | $ (86,737,000) |  |  |  | $ (88,393,000) |  |  |  | $ (17,044,000) | $ (86,737,000) | $ (88,393,000) |  |
Foreign currency translation | (863,000) |  |  |  | (662,000) |  |  |  | (691,000) |  |  |  | (863,000) | (662,000) | (691,000) |  |
Total pre-tax amount | (17,907,000) |  |  |  | (87,399,000) |  |  |  | (89,084,000) |  |  |  | (17,907,000) | (87,399,000) | (89,084,000) |  |
Accumulated other comprehensive loss, after-tax amounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized net periodic benefit costs | (14,386,000) |  |  |  | (56,968,000) |  |  |  | (57,979,000) |  |  |  | (14,386,000) | (56,968,000) | (57,979,000) |  |
Foreign currency translation | (526,000) |  |  |  | (404,000) |  |  |  | (423,000) |  |  |  | (526,000) | (404,000) | (423,000) |  |
Total after-tax amount | (14,912,000) |  |  |  | (57,372,000) |  |  |  | (58,402,000) |  |  |  | (14,912,000) | (57,372,000) | (58,402,000) |  |
Dividends on Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared (in dollars per share) | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.03 | $ 0.12 | $ 0.12 | $ 0.12 |  |
Dividend Amount | 815,000 | 805,000 | 806,000 | 807,000 | 807,000 | 807,000 | 808,000 | 797,000 | 797,000 | 798,000 | 797,000 | 788,000 | 3,233,000 | 3,219,000 | 3,180,000 |  |
Treasury Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of stock repurchases authorized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75,000,000.0 | 25,000,000.0
Additional amount of stock repurchases authorized |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000,000.0 |
Shares repurchased | 1,618,150 |  |  |  |  |  |  |  |  |  |  |  | 1,618,150 |  |  |  |
Aggregate cost of shares repurchased | 56,800,000 |  |  |  |  |  |  |  |  |  |  |  | 56,800,000 |  |  |  |
Amount of shares available for repurchase under the current buyback program |  |  |  |  |  |  |  |  |  |  |  |  | $ 18,200,000 |  |  |  |

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