Supplemental Guarantor Information (Level 4 Senior Note table) (Details) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2014	Oct. 31, 2013	Jan. 31, 2014 Senior Notes Due 2014 [Member]	Mar. 16, 2004 Senior Notes Due 2014 [Member]	Jan. 31, 2014 Senior Notes Due 2015 [Member]	Jun. 02, 2005 Senior Notes Due 2015 [Member]	Jan. 31, 2014 Senior Notes Due 2017 [Member]	Apr. 13, 2009 Senior Notes Due 2017 [Member]	Jan. 31, 2014 Senior Notes Due 2019 [Member]	Sep. 22, 2009 Senior Notes Due 2019 [Member]	Jan. 31, 2014 Senior Notes Due 2022 [Member]	Feb. 07, 2012 Senior Notes Due 2022 [Member]	Jan. 31, 2014 Senior Notes Due 2023 [Member]	Apr. 03, 2013 Senior Notes Due 2023 [Member]	Jan. 31, 2014 Senior Notes Due Two Thousand Thirty-Two [Member]	Sep. 05, 2012 Senior Notes Due Two Thousand Thirty-Two [Member]	Jan. 31, 2014 Senior Notes Due 2018 [Member]	Nov. 12, 2013 Senior Notes Due 2018 [Member]	Jan. 31, 2014 Senior Notes Due 2024 [Member]	Nov. 13, 2013 Senior Notes Due 2024 [Member]
Supplemental Guarantor Information (Textual) [Abstract]
Issued Senior Notes				$ 300,000		$ 300,000		$ 400,000		$ 250,000		$ 419,876		$ 400,000		$ 287,500		$ 350,000		$ 250,000
Senior notes	$ 2,921,851	$ 2,321,442	$ 267,960		$ 300,000		$ 400,000		$ 250,000		$ 419,876		$ 400,000		$ 287,500		$ 350,000		$ 250,000
Interest rate on notes			4.95%		5.15%		8.91%		6.75%		5.875%		4.375%		0.50%		4.00%		5.625%