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The total amount of the federal income tax refund that the reporting entity expects to receive, a portion of which is required to be used to prepay outstanding borrowing obligations.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of the federal income tax refund that the reporting entity received that was used to prepay outstanding borrowing obligations.

No definition available.

Name:	esi_AmountOfFederalIncomeTaxRefundUsedToPrepayDebt
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of cash collateral provided by the reporting entity for issued letters of credit.

No definition available.

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Balance Type:	debit
Period Type:	instant

Debt instrument base rate percentage.

No definition available.

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Maximum amount of guarantee payments allowed under financial covenants in any future fiscal year for each program.

No definition available.

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Maximum amount of guarantee payments allowed under financial covenants in any future fiscal year after the next fiscal year.

No definition available.

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Maximum amount of guarantee payments allowed under financial covenants in next fiscal year.

No definition available.

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The first estimated date in 2016 that a prepayment of debt is expected to be made.

No definition available.

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The second estimated date in 2016 that a prepayment of debt is expected to be made.

No definition available.

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The third estimated date in 2016 that a prepayment of debt is expected to be made.

No definition available.

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The estimated amount of debt prepayment.

No definition available.

Name:	esi_DebtInstrumentEstimatedPrepayment
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Data Type:	xbrli:monetaryItemType
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Debt instrument prepayment premium percentage.

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The amount of the required quarterly administrative fee.

No definition available.

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The amount of outstanding principal owed under a debt agreement.

No definition available.

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Balance Type:	credit
Period Type:	instant

The amount of excess cash flow estimated to be used to prepay the Term Loans in a future period.

No definition available.

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The amount of estimated future guarantee payments to be made under the PEAKS Program.

No definition available.

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The amount of estimated future guarantee payments to be made under the CUSO Program.

No definition available.

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The period of time after entering into an agreement that excess cash flow must be paid to a lender.

No definition available.

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The amount of mandatory prepayments of the Term Loans made during the reporting period.

No definition available.

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The minimum amount of net proceeds from individual income tax refunds that are required to be used to prepay the Term Loans.

No definition available.

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The percentage of excess cash flow, as defined in an agreement, that is required to be paid to a lender.

No definition available.

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Balance Type:	na
Period Type:	duration

The percentage of the net proceeds received from extraordinary receipts that are required to be used to prepay outstanding debt principal.

No definition available.

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Balance Type:	na
Period Type:	instant

The percentage of the federal income tax refund expected to be received by the reporting entity that is required to be used to prepay outstanding borrowing obligations.

No definition available.

Name:	esi_PercentageOfFederalIncomeTaxRefundUsedToPrepayDebt
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Recoveries from charged off loans owed related to regular payments obligation.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of recoveries from charged-off loans that were owed to the reporting entity by the variable interest entity that were offset against amounts the reporting entity owed to the variable interest entity.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The cash outflow to repay term loans.

No definition available.

Name:	esi_RepaymentsOfTermLoans
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Balance Type:	credit
Period Type:	duration

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

No definition available.

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Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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Period Type:	instant

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
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Represents the charge against earnings during the period for commitment fees and debt issuance expenses.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Data Type:	xbrli:monetaryItemType
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Data Type:	na
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Data Type:	na
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Namespace Prefix:
Data Type:	na
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