Accounts Receivable And Allowances For Doubtful Accounts, Returns And Discounts (Tables)

12 Months Ended

Nov. 30, 2011

Accounts Receivable And Allowances For Doubtful Accounts, Returns And Discounts [Abstract]

Schedule Of Accounts Receivable

	November 30,
	2011			2010
Accounts receivable	$	182,788		$	178,925
Unbilled fees for professional services		19,499			12,544
		202,287			191,469
Less: Allowances for doubtful accounts, returns and discounts		(5,868	)		(5,729	)
Net accounts receivable	$	196,419		$	185,740

Summary Of Activities In Allowances For Doubtful Accounts, Returns And Discounts

Year ended November 30,	Allowances Beginning Balance		Charged Against Revenue		Charged to Expenses		Write-offs, Adjustments, Net of Recovery			Allowances Ending Balance
2011	$	5,729	$	650	$	100	$	(611	)	$	5,868
2010		4,224		200		—		1,305			5,729
2009		4,369		650		350		(1,145	)		4,224