Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross unrecognized tax benefits balance at beginning of year	$ 54,516	$ 43,619	$ 35,782
Increases for tax positions of current fiscal year	27,784	8,136	8,449
Increases for tax positions of prior fiscal years	7,245	4,031	962
Lapse of statutes of limitation	(1,708)	(1,270)	(1,574)
Gross unrecognized tax benefits at end of year	87,837	54,516	43,619
Interest and penalties	1,895	881	761
Total unrecognized tax benefits balance at end of year	$ 89,732	$ 55,397	$ 44,380