Debt Instrument, Issuance Price as Percent Of Par Value

No definition available.

Name:	emax_DebtInstrumentIssuancePriceAsPercentOfParValue
Namespace Prefix:	emax_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum number of quarters the paid in kind election may be made

+ References

No definition available.

+ Details

Name:	emax_MaximumNumberOfQuartersPaidInKindElectionMayBeMade
Namespace Prefix:	emax_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Potentional required purchase price upon change of control, percentage of purchase price

+ References

No definition available.

+ Details

Name:	emax_PotentialRequiredPurchasePriceUponChangeOfControlPercentageOfPurchasedPrice
Namespace Prefix:	emax_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Prepayment Redemption Price Percentages

+ References

No definition available.

+ Details

Name:	emax_PrepaymentRedemptionPricePercentages
Namespace Prefix:	emax_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Subsidiary Ownership Percentage

+ References

No definition available.

+ Details

Name:	emax_SubsidiaryOwnershipPercentage
Namespace Prefix:	emax_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: 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

+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: 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)(1))

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

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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 210.5-02.22(a)(1))

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

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

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

- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 2: 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

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=emax_SeniorSecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=emax_SeniorUnsecuredLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Indebtedness - Senior Unsecured Loan Facility (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended
	Mar. 18, 2011	Apr. 03, 2015
Debt Instrument [Line Items]
Subsidiary ownership percentage		100.00%emax_SubsidiaryOwnershipPercentage
Senior Secured Notes (9.50%) \| Senior notes
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	9.50%
Senior Secured Notes (9.50%) \| Senior notes \| Change of control
Debt Instrument [Line Items]
Prepayment redemption price percentages	101.00%
Senior Unsecured Loan Facility (12.25%)
Debt Instrument [Line Items]
Subsidiary ownership percentage		100.00%
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt
Debt Instrument [Line Items]
Debt instrument, face amount	125
Debt instrument, issuance price as percent of par value	98.00%
Debt instrument, unamortized discount		0.6
Maximum number of quarters the paid in kind election may be made	6
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt \| Change of control
Debt Instrument [Line Items]
Potentional required purchase price upon change of control, percentage of purchase price	101.00%
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt \| On or after the second anniversary of the closing but prior to the third anniversary thereof
Debt Instrument [Line Items]
Prepayment redemption price percentages	103.00%
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt \| On or after the third anniversary of the closing but prior to the fourth anniversary thereof
Debt Instrument [Line Items]
Prepayment redemption price percentages	102.00%
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt \| On or after the fourth anniversary of the closing
Debt Instrument [Line Items]
Prepayment redemption price percentages	100.00%
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt \| No paid interest in kind election
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	12.25%
Debt instrument, interest rate, effective percentage		12.25%
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt \| Payment in Kind (PIK) Note
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	14.25%
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt \| Payment in Kind (PIK) Note \| Cash interest portion
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	7.875%
Senior Unsecured Loan Facility (12.25%) \| Unsecured debt \| Payment in Kind (PIK) Note \| Paid in kind interest portion
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	6.375%