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Note 8 - Marketable Securities and Other Investments | 9 Months Ended
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Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract] |
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | 8. Marketable Securities and Other Investments At September 30, 2015, the Company’s investment in marketable securities was $12.2 million, which includes an aggregate unrealized gain of $1.8 million relating to marketable equity security investments. During the nine months ended September 30, 2015, the Company sold 7.7 million shares of its Supervalu Inc. common stock for an aggregate price of $70.3 million. As a result of this transaction, the Company realized a gain of $38.5 million during the nine months ended September 30, 2015, which is included in Interest, dividends and other investment income on the Company’s Condensed Consolidated Statements of Income (see Footnote 15).

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