v2.3.0.11

Subsequent Event	12 Months Ended
	Mar. 31, 2011
Subsequent Event
Subsequent Event	26. Subsequent Events On May 16, 2011, under the Company's 2010 Equity Incentive Plan, the Company granted 95,026 restricted stock units, which vest 25% each year over four-years from the date of grant, and 224,397 market share units, which vest three years from the date of grant. On May 26, 2011, the Company's Board of Directors authorized the Company to repurchase up to the number of shares exercised through previous stock option awards and common stock issued under the 2010 Equity Incentive Plan.

X

- Definition

Subsequent Events [Abstract]

+ Details

Name:	ens_SubsequentEventsAbstract
Namespace Prefix:	ens
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Describes disclosed significant events or transactions that occurred after the balance sheet date, but before the issuance of the financial statements. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 11

+ Details

Name:	us-gaap_ScheduleOfSubsequentEventsTextBlock
Namespace Prefix:	us-gaap
Data Type:	us-types:textBlockItemType
Balance Type:	na
Period Type:	duration