Note 13 Supplemental (Five Point Three Seven Five Percent Senior Notes due 2015 [Member])	Dec. 31, 2011
Five Point Three Seven Five Percent Senior Notes due 2015 [Member]
Debt Instrument [Line Items]
Percent of Stock With Ordinary Voting Rights That the Company Must Retain In Order to Make Any Capital Stock Transactions Under Debt Covenant Agreement	80.00%

Percent of Stock With Ordinary Voting Rights That the Company Must Retain In Order to Make Any Capital Stock Transactions Under Debt Covenant Agreement

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant