EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
EARNINGS PER SHARE
Net income	$ 56,360	$ 33,969	$ 62,842	$ 30,819
Basic weighted-average number of common shares outstanding (000s) (in shares)	303,426,000	158,510,000	303,587,000	158,449,000
Dilutive potential common shares (000s):
Stock options and RSUs (in shares)	9,975,000	592,000	9,201,000	496,000
Convertible debt (in shares)	17,968,000	1,917,000	19,342,000	1,170,000
Diluted weighted-average number of common shares outstanding (000s) (in shares)	331,369,000	161,019,000	332,130,000	160,115,000
Basic earnings per share (in dollars per share)	$ 0.19	$ 0.21	$ 0.21	$ 0.19
Diluted earnings per share (in dollars per share)	$ 0.17	$ 0.21	$ 0.19	$ 0.19
Anti-dilutive shares not included in the computation of diluted earnings per share
Anti-dilutive stock options not included in the computation of diluted earnings per share (in shares)	178,000	2,165,000	178,000	2,183,000

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

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