Subsequent Events (Details) (Amendment To Line Of Credit, Subsequent event, USD $) In Millions, unless otherwise specified	Apr. 21, 2015	Dec. 18, 2013
Subsequent Event [Line Items]
Line of credit from Citibank, N.A.	$ 120.0	$ 50.0
Aggregate increase in permitted acquisitions	600.0
Availability under line of credit	120.0
Increase in borrowing capacity due to accordion feature	30.0
Minimum
Subsequent Event [Line Items]
Aggregate increase in permitted acquisitions	100.0
Maximum
Subsequent Event [Line Items]
Aggregate increase in permitted acquisitions	200.0
Revolving loans and swingline loans
Subsequent Event [Line Items]
Line of credit from Citibank, N.A.	5.0
Letter of Credit
Subsequent Event [Line Items]
Line of credit from Citibank, N.A.	$ 5.0

Represents aggregate increase in permitted acquisition which is notable changes to financial covenants.

No definition available.

Name:	lci_AggregateIncreaseInPermittedAcquisition
Namespace Prefix:	lci_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the amount of maximum borrowing capacity Increases due to accordion feature.

+ References

No definition available.

+ Details

Name:	lci_LineOfCreditFacilityIncreasesInBorrowingCapacityDueToAccordionFeature
Namespace Prefix:	lci_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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