XML 52 R35.htm IDEA: XBRL DOCUMENT v3.19.1

Summary of Significant Accounting Policies Segment Information and Signficant Customers (Details) - segment	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Number of operating segments	1
Entity Wide Revenue Sanofi Percentage	53.00%	66.00%	90.00%
Biologics customer concentration	25.00%
LXRX Diplomat customer concentration	14.00%
Entity Wide Revenue Ipsen Percentage		18.00%

X

- Definition

Percentage of revenue generated from Ipsen Pharma SAS that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

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

X

- Definition

Percentage of revenue generated from Sanofi that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

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

X

- Definition

LXRX Biologics customer concentration - represents percent of revenue that Biologics contributes to total revenues

+ References

No definition available.

+ Details

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

X

- Definition

LXRX Diplomat customer concentration - represents the percent of revenue that Diplomat contributes to revenues

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration