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Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate was 22.7% and 27.8% for the first quarter of 2013 and 2012, respectively. In periods where our effective tax rate is lower than the statutory tax rate of 35%, the difference is primarily due to tax-exempt state and local bonds, and in some years, to gains arising from the change in fair value of outstanding warrants to purchase Class A common stock. The effective tax rate is lower in the current year compared to 2012 primarily due to the additional investments in tax-exempt state and local bonds in the non-insurance companies where the full tax benefit can be realized.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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+ Details