Shareholders' Equity (Details 1)	12 Months Ended
Jul. 03, 2011	Jun. 27, 2010	Jun. 28, 2009
Minimum [Member] \| Employee Stock Purchase Plan [Member]
Schedule of Fair Value of Share Purchased Under Purchase Plan
Expected volatility	31.00%	37.00%	49.00%
Weighted average expected volatility	34.00%	40.00%	67.00%
Expected dividends	0.00%	0.00%	0.00%
Expected term (in years)	0.5	0.5	0.5
Weighted average expected term (in years)	0.5	0.5	0.5
Risk-free interest rate	0.11%	0.17%	0.30%
Minimum [Member] \| Equity Incentive Plan [Member]
Schedule of Fair Value of Share Purchased Under Purchase Plan
Expected volatility	39.00%	43.00%	42.00%
Weighted average expected volatility	43.00%	47.00%	44.00%
Expected dividends	0.00%	0.00%	0.00%
Expected term (in years)	3.3	3.0	3.0
Weighted average expected term (in years)	4.2	3.8	3.8
Risk-free interest rate	0.69%	1.49%	1.12%
Maximum [Member] \| Employee Stock Purchase Plan [Member]
Schedule of Fair Value of Share Purchased Under Purchase Plan
Expected volatility	37.00%	43.00%	87.00%
Risk-free interest rate	0.18%	0.24%	1.13%
Maximum [Member] \| Equity Incentive Plan [Member]
Schedule of Fair Value of Share Purchased Under Purchase Plan
Expected volatility	45.00%	49.00%	53.00%
Expected term (in years)	5.3	5.0	5.0
Risk-free interest rate	1.80%	2.55%	3.02%

Share Based Compensation Arrangement By Share Based Payment Award Weighted Average Fair Value Assumptions Expected Term.

Name:	elx_ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageFairValueAssumptionsExpectedTerm
Namespace Prefix:	elx
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph e(2)(c)

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
Namespace Prefix:	us-gaap
Data Type:	us-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The period of time a share-based award is expected to be outstanding. A share-based award's expected term shall be determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior. An entity is required to aggregate individual awards into relatively homogeneous groups.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph e(2)(a)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section D
-Subsection 2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm
Namespace Prefix:	us-gaap
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The estimated measure of the percentage amount by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph e(2)(b)

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
Namespace Prefix:	us-gaap
Data Type:	us-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph e(2)(d)

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
Namespace Prefix:	us-gaap
Data Type:	us-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

An entity using a valuation technique with different volatilities during the contractual term must disclose the range of expected volatilities used and the weighted-average expected volatility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph e(2)(b)

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate
Namespace Prefix:	us-gaap
Data Type:	us-types:percentItemType
Balance Type:	na
Period Type:	duration