Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Fixed maturities, amortized cost	$ 5,125,773	$ 5,172,952
Equity securities, cost	1,252,214	1,156,294
Senior long-term debt and other debt (estimated fair value)	$ 1,424,000	$ 1,391,000

This item represents the cost of debt 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.

No definition available.

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Balance Type:	debit
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