Label	Element	Value
Conversion of convertible debt	lh_Conversionofconvertibledebt	$ 0

Value of stock issued during period upon conversion of notes an/or reversal of DTL to reflect tax benefit realized upon issuance of stock.

No definition available.

Name:	lh_Conversionofconvertibledebt
Namespace Prefix:	lh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration