|
Fair Value Measurements - Schedule of Consideration of Risk Assets (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Apr. 06, 2013
Store
|
Mar. 31, 2012
Store
|
Apr. 06, 2013
Store
|
Mar. 31, 2012
Store
|
|
| Fair Value, Concentration of Risk, Financial Statement Captions [Line Items] | ||||
| Number of stores identified as at risk and evaluated for impairment | 17 | 7 | 29 | 13 |
| Total carrying amount of stores identified as at risk prior to any impairment charges taken | $ 2.7 | $ 1.2 | $ 4.7 | $ 3.0 |
| Less: impairment charges recorded during the period | 1.1 | 0 | 2.9 | 0.4 |
| Remaining carrying amount of stores identified as at risk after impairment charges taken | 1.6 | 1.2 | 1.8 | 2.6 |
| Number of stores considered at risk, but not impaired | 7 | 7 | 8 | 11 |
| Total carrying amount of stores identified as at risk, but not impaired | $ 1.4 | $ 1.2 | $ 1.6 | $ 2.6 |