Leases - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 29, 2012
|
Dec. 31, 2011
|
Jan. 01, 2011
|
|
Leases [Abstract] | |||
Operating Leases, rent expense, minimum rentals | $ 29.4 | $ 20.1 | $ 18.9 |