Discontinued Operations	3 Months Ended
Discontinued Operations	Mar. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations In the fourth quarter of 2009, we sold 100% of our interest in Selective HR for proceeds to be received over a 10-year period. These proceeds were based on the ability of the purchaser to retain and generate new worksite lives though the independent agents who currently distribute the products. Based on discussions with the purchaser, we currently estimate the recoverable amount to be $1.0 million. This impairment, which amounted to $1.5 million, is included in "Loss on disposal of discontinued operations, net of tax" in the Consolidated Statements of Income.

The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).

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