Earnings Per Share (Narrative) (Details) (USD $)	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Earnings Per Share
Convertible notes conversion price, per share	$ 34		$ 34
Debt instrument stated interest percentage	3.125%		3.125%
Investment warrants exercise price	$ 44.905		$ 44.905
Common stock related to convertible notes included in calculation of weighted average diluted share outstanding	1,400,000		1,400,000
Potential common share excluded from computation of diluted earnings per share	0	0	0	0
Common Stock Related To Warrants Included In Calculation Of Weighted Average Diluted Share Outstanding	0		31,000

Debt securities outstanding shall be assumed to have been converted at the beginning of the period (or at the time of issuance, if later), and the resulting common shares shall be included in common shares used to calculate diluted earnings per share. The dilutive effect of convertible debt securities shall be reflected in diluted earnings per share by application of the net share settlement method if the entity has a substantive stated intent and policy to settle up to the principal amount of the convertible debt securities in cash.

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- Definition

Common Stock Related To Warrants Included In Calculation Of Weighted Average Diluted Share Outstanding.

+ Details

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- Definition

Exercise price of the warrants.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number APB14-1
-Paragraph 32
-Subparagraph b

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

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