Supplemental Financial Information (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
May 31, 2013
|
May 31, 2013
|
May 31, 2012
|
May 31, 2013
5.50% Senior Notes Due 2014 [Member]
|
May 31, 2013
5.60% Senior Notes Due 2015 [Member]
|
May 31, 2013
6.50% Senior Notes Due 2016 [Member]
|
May 31, 2013
12.25% Senior Notes Due 2017 [Member]
|
May 31, 2013
4.75% Senior Notes Due 2017 [Member]
|
May 31, 2013
6.95% Senior Notes Due 2018 [Member]
|
May 31, 2013
4.125% Senior Notes Due 2018 [Member]
|
Feb. 28, 2013
4.125% Senior Notes Due 2018 [Member]
|
May 31, 2013
2.00% Convertible Senior Notes Due 2020 [Member]
|
May 31, 2010
2.00% Convertible Senior Notes Due 2020 [Member]
|
May 31, 2013
2.75% Convertible Senior Notes Due 2020 [Member]
|
Nov. 30, 2010
2.75% Convertible Senior Notes Due 2020 [Member]
|
May 31, 2013
3.25% Convertible Senior Notes Due 2021 [Member]
|
Nov. 30, 2011
3.25% Convertible Senior Notes Due 2021 [Member]
|
May 31, 2013
4.750% Senior Notes Due 2022 [Member]
|
Nov. 30, 2012
4.750% Senior Notes Due 2022 [Member]
|
May 31, 2013
Letter Of Credit Agreement 3 [Member]
|
|
Condensed Financial Statements, Captions [Line Items] | ||||||||||||||||||||
Deferred Income Tax Expense (Benefit) | $ 6,174 | $ (403,012) | ||||||||||||||||||
Interest rate | 5.50% | 5.60% | 6.50% | 12.25% | 4.75% | 6.95% | 4.125% | 4.125% | 2.00% | 2.00% | 2.75% | 2.75% | 3.25% | 3.25% | 4.75% | 4.75% | ||||
Guarantee by subsidiaries | 75,000 | |||||||||||||||||||
Line of credit facility current borrowing capacity | $ 200,000 |