Investment In Unconsolidated Affiliate	9 Months Ended
Sep. 30, 2011
Investment In Unconsolidated Affiliate [Abstract]
Investment In Unconsolidated Affiliate	8. Investment in Unconsolidated Affiliate In the third quarter of 2011, the Company received a $54 million cash dividend from StoneRiver Group, L.P. ("StoneRiver"), in which the Company owns a 49% interest. The dividend was recorded as a reduction in the Company's investment in StoneRiver. A portion of the dividend, $12 million, represented a return on the Company's investment and was reported in cash flows from operating activities. The Company's investment in StoneRiver was $117 million and $156 million at September 30, 2011 and December 31, 2010, respectively, and was reported within other long-term assets in the consolidated balance sheets.

- Definition

The entire disclosure for equity investment, or group of investments, for which combined disclosure is appropriate, including: (a) the name of each investee and percentage of ownership of common stock, (b) accounting policies for investments in common stock, (c) difference between the amount at which the investment is carried and the amount of underlying equity in net assets and the accounting treatment of the difference, (d) the total fair value of each identified investment for which a market value is available, (e) summarized information as to assets, liabilities, and results of operations of the investees (for investments in unconsolidated subsidiaries, common stock of joint ventures, or other investments using the equity method), and (f) material effects of possible conversions, exercises, or contingent issuances of the investee. Other disclosures include (a) the names of any investee in which the investor owns 20 percent or more of the voting stock and investment is not accounted for using the equity method, and the reasons why not, and (b) the names of any investee in which the investor owns less than 20 percent of the voting stock and the investment is accounted for using the equity method, and the reasons why it is.

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