BASIS OF FINANCIAL STATEMENT PRESENTATION (Details)	6 Months Ended
Jun. 30, 2011
Notes To Financial Statements [Abstract]
Ownership percentage below which investments are generally accounted for on the cost method (in hundredths)	20.00%

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lh_OwnershipPercentageBelowWhichInvestmentsAreGenerallyAccountedForOnCostMethodInHundredths

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lh

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us-types:percentItemType

Balance Type:

na

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duration