|
Impairment Charges (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
Jun. 24, 2012
|
Jun. 26, 2011
|
Dec. 26, 2010
|
Sep. 19, 2010
|
Jun. 24, 2012
|
Jun. 26, 2011
|
Dec. 25, 2011
|
Dec. 26, 2010
|
Dec. 20, 2009
|
|
| Components of the impairment charges | |||||||||
| Impairment charge | $ 257 | $ 2,818 | $ 800 | $ 1,800 | $ 257 | $ 2,818 | $ 2,997 | $ 2,655 | $ 1,867 |
|
Equipment [Member]
|
|||||||||
| Components of the impairment charges | |||||||||
| Impairment charge | 2,997 | 2,655 | |||||||
|
Vessels [Member]
|
|||||||||
| Components of the impairment charges | |||||||||
| Impairment charge | $ 1,867 | ||||||||