Consolidated Balance Sheets (Unauditied) (Parenthetical) (USD $) In Thousands, except Per Share data	Jun. 30, 2011	Dec. 31, 2010
Investments
Total fixed income securities, Available for sale, Cost or amortized cost	$ 5,240,718	$ 4,864,806
Fair value for fixed income securities - held to maturity, at amortized cost	$ 176,352	$ 195,811
SHAREHOLDERS' EQUITY
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	250,000	250,000
Common stock, shares issued	122,594	120,942
Common stock, shares outstanding	110,274	114,968
Treasury stock	12,320	5,974

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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