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(Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Statement of Comprehensive Income [Abstract]      
Unrealized gain (loss) on investments, tax $ 0 $ 1,018 $ 2,208
Noncash Titan Europe Plc gain, tax 0 9,492 0
Pension liaiblity adjustments, tax $ (8,700) $ 207 $ 4,583