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Credit Facilities - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
9 Months Ended |
|---|---|
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Apr. 06, 2013
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|
| Line Of Credit Facility Covenant Compliance [Line Items] | |
| Letters of credit, amount | $ 10.0 |
| Letters of credit, expiration date | May 14, 2014 |
| Outstanding letters of credit interest rate | 3.25% |
| Percentage on LIBOR rate | 0.20% |
| Percentage on LIBOR rate plus | 1.75% |
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Letters of credit [Member]
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|
| Line Of Credit Facility Covenant Compliance [Line Items] | |
| Line of Credit Facility, Amount Outstanding | 0 |
|
Stand-by letter of credit [Member]
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|
| Line Of Credit Facility Covenant Compliance [Line Items] | |
| Line of Credit Facility, Amount Outstanding | 3.0 |
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Credit facility [Member]
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| Line Of Credit Facility Covenant Compliance [Line Items] | |
| Line of Credit Facility, Amount Outstanding | $ 0 |