FINANCIAL AID AND REGULATORY COMPLIANCE (Details)	12 Months Ended
Dec. 31, 2013 Unit	Dec. 31, 2012 Unit	Dec. 31, 2011 Unit
FINANCIAL AID AND REGULATORY COMPLIANCE [Abstract]
Percentage of net revenues on cash basis indirectly derived from funds (in hundredths)	80.00%	81.00%	84.00%
Maximum specified percentage of net revenues on cash basis indirectly derived from funds (in hundredths)	90.00%	90.00%	90.00%
Period over which entity became ineligible after receiving specified percentage as revenue from funds	2 years
Period for which entity may not reapply for eligibility	2 years
Standard composite score for financial responsibility, minimum	-1
Standard composite score for financial responsibility, maximum	3
Composite score for financial responsibility	1.5	1.6	2.1

This line item represents the composite score for financial responsibility set by by the U.S. Department of Education (the "DOE").

No definition available.

Name:	linc_CompositeScoreForFinancialResponsibility
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Data Type:	xbrli:decimalItemType
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Period Type:	duration

Name:	linc_FinancialAidAndRegulatoryComplianceAbstract
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Represents the maximum specified percentage of net revenues on cash basis indirectly derived from funds.

No definition available.

Name:	linc_MaximumSpecifiedPercentageOfNetRevenuesOnCashBasisIndirectlyDerivedFromFunds
Namespace Prefix:	linc_
Data Type:	num:percentItemType
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Period Type:	duration

Represents the percentage of net revenues on cash basis indirectly derived from funds.

No definition available.

Name:	linc_PercentageOfNetRevenuesOnCashBasisIndirectlyDerivedFromFunds
Namespace Prefix:	linc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the number of years for which entity may not reapply for eligibility, once became ineligible.

No definition available.

Name:	linc_PeriodForWhichEntityMayNotReapplyForEligibility
Namespace Prefix:	linc_
Data Type:	xbrli:durationItemType
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Period Type:	duration

Period over which entity becomes ineligible if it receives 90% of its overall revenue from the funds.

No definition available.

Name:	linc_PeriodOverWhichEntityBecameIneligibleAfterReceivingSpecifiedPercentageAsRevenueFromFunds
Namespace Prefix:	linc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

This line item represents the maximum composite score for financial responsibility set by by the U.S. Department of Education (the "DOE").

No definition available.

Name:	linc_StandardCompositeScoreForFinancialResponsibilityMaximum
Namespace Prefix:	linc_
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Balance Type:	na
Period Type:	duration

This line item represents the minimum composite score for financial responsibility set by by the U.S. Department of Education (the "DOE").

No definition available.

Name:	linc_StandardCompositeScoreForFinancialResponsibilityMinimum
Namespace Prefix:	linc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration