Amortizable Intangible Assets and Unamortizable Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended
	Oct. 31, 2015	May. 02, 2015	Nov. 01, 2014
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	$ 25,306
Accumulated Amortization	(23,402)
Total	1,904
Unamortizable intangible assets	313,134
Total amortizable and unamortizable, intangible assets	315,038	$ 315,653	$ 316,921
Trade name
Intangible Assets by Major Class [Line Items]
Unamortizable intangible assets	293,400
Publishing contracts
Intangible Assets by Major Class [Line Items]
Unamortizable intangible assets	19,734
Technology
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	10,710
Accumulated Amortization	(9,385)
Total	$ 1,325
Technology | Minimum
Intangible Assets by Major Class [Line Items]
Useful Life	5 years
Technology | Maximum
Intangible Assets by Major Class [Line Items]
Useful Life	10 years
Distribution contracts
Intangible Assets by Major Class [Line Items]
Useful Life	10 years
Gross Carrying Amount	$ 8,325
Accumulated Amortization	(7,757)
Total	568
Other
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	6,271
Accumulated Amortization	(6,260)
Total	$ 11
Other | Minimum
Intangible Assets by Major Class [Line Items]
Useful Life	3 years
Other | Maximum
Intangible Assets by Major Class [Line Items]
Useful Life	10 years