Restructuring - Additional Information (Detail) (USD $)	3 Months Ended				1 Months Ended
	Feb. 28, 2014	Aug. 31, 2013	Feb. 28, 2014 Employee Severance	Aug. 31, 2013 Employee Severance	May 31, 2013 Consumer Segment Two Thousand Thirteen Plan Position Facility	May 31, 2013 Consumer Segment Two Thousand Thirteen Plan Employee Severance	May 31, 2013 Consumer Segment Two Thousand Thirteen Plan Facility Closing	May 31, 2013 Industrial Segment Two Thousand Thirteen Plan	May 31, 2013 Industrial Segment Two Thousand Thirteen Plan Employee Severance Position
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (371,000)	$ 128,000	$ (371,000)	$ 128,000	$ 15,600,000	$ 8,200,000	$ 7,400,000	$ 4,500,000
Number of position eliminated					133
Number of shutdown manufacturing facilities					2
Inventory markdowns					$ 3,900,000
Expected number of positions to be eliminated									34