Segment Disclosure (Revenues Related To Operations By Geographic Areas) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 425,496	$ 364,644
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	197,682	166,700
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	54,616	49,329
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	77,121	66,601
Asia-Pacific And Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 96,077	$ 82,014