Summary of Significant Accounting Policies - Amortization of Property and Equipment Using Declining Balance Method (Detail)	12 Months Ended
	Feb. 02, 2014
Furniture and fixtures
Depreciation and Amortization Expenses For Property Plant And Equipment
Property and equipment, amortization rate	20.00%
Computer hardware and software
Depreciation and Amortization Expenses For Property Plant And Equipment
Property and equipment, amortization rate	30.00%
Equipment and vehicles
Depreciation and Amortization Expenses For Property Plant And Equipment
Property and equipment, amortization rate	30.00%