Significant Accounting Policies - Schedule of Property and Equipment Useful Lives (Detail)	12 Months Ended
	Jan. 28, 2017
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	40 years
Minimum [Member] | Machinery, Equipment and Aircraft [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	3 years
Minimum [Member] | Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	3 years
Minimum [Member] | Computer Software [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	3 years
Maximum [Member] | Machinery, Equipment and Aircraft [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	10 years
Maximum [Member] | Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	7 years
Maximum [Member] | Computer Software [Member]
Property, Plant and Equipment [Line Items]
Property and Equipment, Useful Life	10 years