- Definition

The increases or decreases in lease payments that result from changes occurring after the inception of the lease in the factors (other than the passage of time) on which lease payments are based, except that any escalation of minimum lease payments relating to increases in construction or acquisition cost of the leased property or for increases in some measure of cost or value during the construction or preconstruction period, are excluded from contingent rentals. Contingent rentals also may include amounts for which the triggering events have not yet occurred or the specified targets for which have not yet been achieved (such as sales based percentage rent), but which events are considered probable of occurring or which specified targets are considered probable of being achieved.

+ References+ Details

Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Other Commitments [Line Items]
Average remaining lease term	9 years
Rent expense charged to operations under operating leases	$ 64.7	$ 54.2	$ 41.1
Rent expense, contingent rent	1.4	0.9	0.6
Trademark [Member]
Other Commitments [Line Items]
Trademark dispute		2.7
Minimum [Member]
Other Commitments [Line Items]
Leases expiration dates	2013
Maximum [Member]
Other Commitments [Line Items]
Leases expiration dates	2032
Sunflower Farmers Markets, Inc. [Member] \| Financing leases [Member] \| Purchase price allocation adjustments [Member]
Other Commitments [Line Items]
Acquisition of purchase price allocation	22.6
Henry's Holdings LLC [Member] \| Financing leases [Member] \| Purchase price allocation adjustments [Member]
Other Commitments [Line Items]
Acquisition of purchase price allocation	63.2
Henry's Holdings LLC [Member] \| Capital leases [Member] \| Purchase price allocation adjustments [Member]
Other Commitments [Line Items]
Acquisition of purchase price allocation	$ 4.0