CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Aug. 31, 2013	Nov. 30, 2012
Accounts receivable, allowances	$ 4,828	$ 5,606
Common Stock, par value (usd per share)	$ 0.001	$ 0.001
Common Stock, shares authorized	1,200,000,000	1,200,000,000
Common Stock, shares issued	162,993,000	163,698,000
Common Stock, shares outstanding	162,993,000	163,698,000