Description of business and basis of presentation (Details)
$ in Thousands
May. 30, 2015
USD ($)
ft²
item
Feb. 28, 2015
USD ($)
May. 31, 2014
USD ($)
Description of business and basis of presentation      
Number of stores 71    
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 25    
Recent accounting pronouncements      
Deferred financing costs, net | $ $ 7,253 $ 7,742 $ 9,210
Senior secured term loan facility      
Recent accounting pronouncements      
Deferred financing costs, net | $ $ 7,021    
Elfa | Elfa      
Description of business      
Number of countries in which products are sold on wholesale basis 30