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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Statement of Financial Position [Abstract]    
Common stock, par value (in usd per share) $ 1.00us-gaap_CommonStockParOrStatedValuePerShare $ 1.00us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized (in shares) 25,413,000us-gaap_CommonStockSharesAuthorized 25,413,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares) 25,413,000us-gaap_CommonStockSharesIssued 25,413,000us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares) 20,132,000us-gaap_CommonStockSharesOutstanding 20,279,000us-gaap_CommonStockSharesOutstanding
Treasury stock, shares (in shares) 5,281,000us-gaap_TreasuryStockShares 5,134,000us-gaap_TreasuryStockShares