Label |
Element |
Value |
Issuance of common stock under employee plans |
lh_Issuanceofcommonstockunderemployeeplans |
$ 58.9
|
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures |
us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures |
6.6
|
Conversion of convertible debt |
lh_Conversionofconvertibledebt |
4.5
|
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition |
us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |
23.6
|
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation |
us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation |
2.2
|
AOCI Attributable to Parent [Member] |
|
|
Other Comprehensive Income (Loss), Net of Tax |
us-gaap_OtherComprehensiveIncomeLossNetOfTax |
(7.7)
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
58.5
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
66.2
|
Additional Paid-in Capital [Member] |
|
|
Issuance of common stock under employee plans |
lh_Issuanceofcommonstockunderemployeeplans |
58.9
|
Conversion of convertible debt |
lh_Conversionofconvertibledebt |
4.5
|
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition |
us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |
23.6
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
0.0
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
0.0
|
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation |
us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation |
2.2
|
Stock Repurchased During Period, Value |
us-gaap_StockRepurchasedDuringPeriodValue |
89.2
|
Common Stock [Member] |
|
|
Issuance of common stock under employee plans |
lh_Issuanceofcommonstockunderemployeeplans |
0.0
|
Conversion of convertible debt |
lh_Conversionofconvertibledebt |
0.0
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
10.4
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
10.5
|
Stock Repurchased During Period, Value |
us-gaap_StockRepurchasedDuringPeriodValue |
0.1
|
Retained Earnings [Member] |
|
|
Net Income (Loss) Attributable to Parent |
us-gaap_NetIncomeLoss |
254.4
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
3,373.5
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
3,553.0
|
Stock Repurchased During Period, Value |
us-gaap_StockRepurchasedDuringPeriodValue |
74.9
|
Treasury Stock [Member] |
|
|
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures |
us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures |
6.6
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
(958.9)
|
Stockholders' Equity Attributable to Parent |
us-gaap_StockholdersEquity |
$ (965.5)
|