One-time charge incurred during the reporting period, pertaining to the JSP contract renewal.

No definition available.

Name:	lci_JSPContractRenewalCost
Namespace Prefix:	lci_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the extension term of the agreement in which the entity acquires goods or services other than employee services in exchange for equity securities of the company.

+ References

No definition available.

+ Details

Name:	lci_ShareBasedGoodsAndNonemployeeServicesTransactionAgreementExtensionTerm
Namespace Prefix:	lci_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the second extension term of the agreement in which the entity acquires goods or services other than employee services in exchange for equity securities of the company.

+ References

No definition available.

+ Details

Name:	lci_ShareBasedGoodsAndNonemployeeServicesTransactionAgreementSecondExtensionTerm
Namespace Prefix:	lci_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period met by the company in satisfying the conditions of minimum purchase requirement under the agreement in which equity securities were issued to pay for goods or nonemployee services.

+ References

No definition available.

+ Details

Name:	lci_ShareBasedGoodsAndNonemployeeServicesTransactionMinimumPurchaseAgreementAchievedPeriod
Namespace Prefix:	lci_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the minimum quantity to be purchased in each year by the entity under the agreement in which equity securities were issued to pay for goods or nonemployee services.

+ References

No definition available.

+ Details

Name:	lci_ShareBasedGoodsAndNonemployeeServicesTransactionMinimumQuantityPurchasesInEachYear
Namespace Prefix:	lci_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the number of products covered under the distribution agreement in which the entity acquires goods or services other than employee services in exchange for equity securities of the company.

+ References

No definition available.

+ Details

Name:	lci_ShareBasedGoodsAndNonemployeeServicesTransactionNumberOfProductsUnderDistributionAgreement
Namespace Prefix:	lci_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the period from the date of notice within which if the breach is not cured, it gives the non-breaching party the right to terminate the contract.

+ References

No definition available.

+ Details

Name:	lci_ShareBasedGoodsAndNonemployeeServicesTransactionPeriodFromDateOfNoticeWithinWhichBreachIfNotCuredNonBreachingPartyHasRightToTerminateContract
Namespace Prefix:	lci_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the additional number of shares or units of the entity's securities to be issued in the transaction in which equity securities were issued to pay for goods or nonemployee services.

+ References

No definition available.

+ Details

Name:	lci_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfAdditionalSecuritiesToBeIssued
Namespace Prefix:	lci_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Definition

The number of shares or units of entity securities issued in the transaction in which equity securities were issued to pay for goods or nonemployee services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 50

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionQuantityOfSecuritiesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=lci_JeromeStevensPharmaceuticalsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Material Contracts with Suppliers (Details) (USD $) Share data in Millions, unless otherwise specified	9 Months Ended	0 Months Ended	1 Months Ended	9 Months Ended	3 Months Ended
	Mar. 31, 2014	Aug. 19, 2013 item	Mar. 31, 2004	Mar. 31, 2015	Mar. 31, 2015	Mar. 31, 2014
Material Contracts with Suppliers
Expense recorded in accordance with policy related to renewal and extension costs for recognized intangible assets	$ 20,100,000lci_JSPContractRenewalCost
JSP
Material Contracts with Suppliers
Number of shares of common stock issued in exchange for exclusive distribution rights		1.5	4.0
Number of products under the exclusive distribution agreement		3
Extension term of the agreement		5 years
Expense recorded in accordance with policy related to renewal and extension costs for recognized intangible assets		20,100,000
Second extension term of the agreement		5 years
Number of shares of common stock issued in exchange for extension of exclusive distribution rights agreement		1.5
Period from notice within which if breach is not cured, non-breaching party has right to terminate contract				30 days
Minimum purchase quantity required in each year				$ 31,000,000
Minimum purchase requirement met by the company				11 years
JSP \| Inventory purchases \| Suppliers
Material Contracts with Suppliers
Purchases of finished goods inventory from JSP as a percentage of the company's inventory purchases	67.00%			68.00%	66.00%	65.00%