Name:	lxrx_WorkforceReductionPercentageofCashExpendituresHighEndofRange
Namespace Prefix:	lxrx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Lexicon’s board of directors committed to a workforce reduction. This represents the low end of the range of cash expenditures as a percentage of total costs expected as a result of the reduction in staff.

No definition available.

Name:	lxrx_WorkforceReductionPercentageofCashExpendituresLowEndofRange
Namespace Prefix:	lxrx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Lexicon’s board of directors committed to a workforce reduction. This represents the high end of the range of severance and other one-time termination benefits costs expected as a result of the reduction in staff.

No definition available.

Name:	lxrx_WorkforceReductionTerminationCostsHighEndofRange
Namespace Prefix:	lxrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Lexicon’s board of directors committed to a workforce reduction. This represents the low end of the range of severance and other one-time termination benefits costs expected as a result of the reduction in staff.

No definition available.

Name:	lxrx_WorkforceReductionTerminationCostsLowEndofRange
Namespace Prefix:	lxrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Lexicon’s board of directors committed to a workforce reduction. This represents the high end of the range of total costs expected as a result of the reduction in staff.

No definition available.

Name:	lxrx_WorkforceReductionTotalCostHighEndofRange
Namespace Prefix:	lxrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Lexicon's board of directors committed to a workforce reduction. This represents the low end of the range of total costs expected as a result of the reduction in staff.

No definition available.