Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Nov. 30, 2016	Nov. 30, 2016	May 31, 2016
Goodwill And Intangible Assets [Line Items]
Accumulated impairment losses	$ 155,600,000	$ 155,600,000	$ 14,900,000
Preliminary goodwill impairment losses		140,686,000
Other intangible asset accumulated impairment losses, gross			600,000
Intangible asset impairment loss		47,783,000
Goodwill	1,085,763,000	1,085,763,000	$ 1,219,630,000
Trademarks and Trade Names
Goodwill And Intangible Assets [Line Items]
Indefinite-lived intangible assets, preliminary impairment loss		2,045,000
Kirker Reporting Unit
Goodwill And Intangible Assets [Line Items]
Intangible asset impairment loss	$ 45,700,000	$ 45,700,000
Fair value in excess of carrying value			8.00%
Percentage of loss on sales	15.00%
Assumed long-term earnings growth rate		3.00%
Weighted-average cost of capital		8.00%
Goodwill	$ 0	$ 0
Kirker Reporting Unit | Trademarks and Trade Names
Goodwill And Intangible Assets [Line Items]
Indefinite-lived intangible assets, preliminary impairment loss	2,000,000	2,000,000
Recalculated fair value of identifiable indefinite-lived intangible assets	5,800,000	5,800,000
Consumer Segment
Goodwill And Intangible Assets [Line Items]
Preliminary goodwill impairment losses	140,686,000	140,686,000
Intangible asset impairment loss	47,800,000	47,800,000
Goodwill	$ 421,603,000	$ 421,603,000	$ 572,507,000