Amount of debt securities categorized neither as held-to-maturity nor trading.

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+ Details

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

+ References+ Details

Investments - Additional Information (Details) (USD $) In Thousands, unless otherwise specified					6 Months Ended		1 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 U.S. treasury securities security	Jun. 30, 2013 Corporate debt securities	Jun. 30, 2013 Money market funds	Jun. 30, 2013 Cash, investment grade cash equivalents or U.S. treasury securities Minimum	Jun. 30, 2013 Corporate debt securities Maximum	Apr. 30, 2013 Investor Fairholme Capital Management, L.L.C.	Jun. 30, 2013 Securities of any one issuer (excluding the U.S. Government) Other aggregated investments Maximum
Schedule of Available-for-sale Securities [Line Items]
Common stock ownership percentage							27.10%
Investments, target portfolio allocations					50.00%	50.00%		10.00%
Money market funds				$ 34,300
Debt securities	114,519	84,982	29,537
Number of securities with net unrealized losses		0
Gross unrealized losses	$ 909	$ 0	$ 909