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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Cash (in dollars) | $ 188.5 | $ 249.8
Common shares, par value per share (in dollars per share) | $ 1.00 | $ 1.00
Common shares, authorized shares | 50,000,000 | 50,000,000
Common shares, issued shares | 6,176,210 | 6,290,964
Common shares, outstanding shares | 6,176,210 | 6,290,964

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