Description of business and basis of presentation (Details) $ in Thousands	Nov. 28, 2015 USD ($) ft² store state country	Feb. 28, 2015 USD ($)	Nov. 29, 2014 USD ($)
Description of business and basis of presentation
Number of stores | store	77
Average size of stores (in square feet) | ft²	25,000
Average selling square feet in stores (in square feet) | ft²	19,000
Number of states | state	28
Deferred financing costs, net | $	$ 6,540	$ 7,742	$ 8,231
Senior secured term loan facility
Description of business and basis of presentation
Deferred financing costs, net | $	$ 6,106
Elfa | Elfa
Description of business and basis of presentation
Number of countries in which products are sold on wholesale basis | country	30