OUT-OF-PERIOD ADJUSTMENT (Details) (Out of Period Adjustment [Member], USD $) In Millions, except Per Share data	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011
Out of Period Adjustment [Member]
Out of Period Adjustment, Effect on Insurance Policy Benefits	$ 6.0	$ 6.0
Out of Period Adjustment, Effect on Income Tax Expense (Benefit)	(2.1)	(2.1)
Out Of Period Adjustment to Net Income	$ 3.9	$ 3.9
Adjustment to Earnings Per Diluted Share	$ (0.01)	$ (0.01)