Inventories (Tables)

9 Months Ended

Jul. 31, 2011

Inventories [Abstract]

Inventories

	October 31,			July 31,
	2010			2011
Raw materials	$	30,569		$	41,970
Work-in-process		6,993			12,271
Finished goods		177,994			154,161
Deferred cost of goods sold		76,830			66,758
		292,386			275,160
Provision for excess and obsolescence		(30,767	)		(31,333	)
	$	261,619		$	243,827