Inventories (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Oct. 31, 2013
Inventories
Raw materials	$ 56,699		$ 53,274
Work-in-process	7,348		7,773
Finished goods	177,996		153,855
Deferred cost of goods sold	84,479		75,764
Inventories before provision	326,522		290,666
Provision for excess and obsolescence	(42,398)		(41,563)
Total inventories	284,124		249,103
Provisions	$ 5,439	$ 3,580