Name:	cik0001300734_OperatingLeasesFurtherAmortizationExpense
Namespace Prefix:	cik0001300734_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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No definition available.

Name:	cik0001300734_OperatingLeasesFurtherAmortizationExpenseAbstract
Namespace Prefix:	cik0001300734_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of further amortization expense of operating lease rental expenses having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

Name:	cik0001300734_OperatingLeasesFurtherAmortizationExpenseInFiveYears
Namespace Prefix:	cik0001300734_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of further amortization expense of operating lease rental expenses having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

Name:	cik0001300734_OperatingLeasesFurtherAmortizationExpenseInFourYears
Namespace Prefix:	cik0001300734_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of further amortization expense of operating lease rental expenses having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

Name:	cik0001300734_OperatingLeasesFurtherAmortizationExpenseInThreeYears
Namespace Prefix:	cik0001300734_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of further amortization expense of operating lease rental expenses having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

Name:	cik0001300734_OperatingLeasesFurtherAmortizationExpenseInTwoYears
Namespace Prefix:	cik0001300734_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of further amortization expense of operating lease rental expenses having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

Name:	cik0001300734_OperatingLeasesFurtherAmortizationExpenseNextTwelveMonths
Namespace Prefix:	cik0001300734_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of further amortization expense of operating lease rental expenses having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.