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OUT-OF-PERIOD ADJUSTMENT	9 Months Ended
OUT-OF-PERIOD ADJUSTMENT	Sep. 30, 2011
Out Of Period Adjustment [Abstract]
OUT-OF-PERIOD ADJUSTMENT	OUT-OF-PERIOD ADJUSTMENT We recorded the net effect of an out-of-period adjustment which increased our insurance policy benefits by $6.0 million, decreased tax expense by $2.1 million and decreased our net income by $3.9 million (or one cent per diluted share) in the three and nine months ended September 30, 2011. We evaluated this error taking into account both qualitative and quantitative factors and considered the impact of this error in relation to the 2011 periods, as well as the materiality to the periods in which they originated. The impact of correcting this error in prior years was not significant to any individual period. Management believes this error is immaterial to the consolidated financial statements.