Note 4. Investment Securities: Realized Gain (Loss) on Investments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Available for sale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments	$ 11,889	$ 2,101	$ 16,453	$ 2,852
Trading Securities, Realized Gain (Loss)	349	(151)	385	105
Other Realized Gain (Loss) Excluding Other Than Temporary Impairments	(415)		(654)
Marketable Securities, Realized Gain (Loss), Excluding Other than Temporary Impairments	11,823	1,950	16,184	2,957
Available for sale Securities Transfers To Trading Gains Losses Excluding Other Than Temporary Impairments				138
Trading Securities, Change in Unrealized Holding Gain (Loss)	(88)	(100)	170	(108)
Marketable Securities, Unrealized Gain (Loss), Excluding Other than Temporary Impairments	(88)	(100)	170	30
Net realized investment gains	11,735	1,850	16,354	2,987
Debt Securities
Available for sale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments	11,825	2,101	16,276	3,343
Preferred Stock
Available for sale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments	$ 64		$ 177	$ (491)

Other realized gains and losses not otherwise defined in taxonomy.

No definition available.

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This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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-Publisher FASB

-Name Accounting Standards Codification

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This item represents the difference between the gross amount of gains (losses) included in earnings for transfers of securities from the available-for-sale category into the trading category. Such net gain (loss) included in earnings represents the net unrealized gain (loss) which had been included in other comprehensive income and is associated with the securities transferred from the available-for-sale category to the trading category, excluding other than temporary impairments (OTTI) recognized in other comprehensive income.

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This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting.

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-Name Regulation S-X (SX)

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This item represents the total realized gain (loss) included in earnings for the period as a result of selling marketable securities categorized as trading, available-for-sale, or held-to-maturity.

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This item represents the total unrealized gain (loss) included in earnings for the period as a result of holding marketable securities categorized as trading, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period.

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Amount of unrealized holding gain (loss) recognized in the income statement for investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

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