(LOSS) EARNINGS PER SHARE (Tables)

3 Months Ended

Mar. 31, 2012

(LOSS) EARNINGS PER SHARE

Schedule of calculation of earnings per share

	Three Months Ended March 31
	2012			2011
Net (loss) income	$	(12,921	)	$	6,482
Basic weighted-average number of common shares outstanding (000s)		307,776			303,749
Dilutive effect of stock options and RSUs (000s)		—	(a)		8,427
Dilutive effect of convertible debt (000s)		—	(a)		20,724
Diluted weighted-average number of common shares outstanding (000s)		307,776			332,900
Basic and diluted (loss) earnings per share	$	(0.04	)	$	0.02

(a)

In the three-month period ended March 31, 2012, all potential common shares issuable for stock options, RSUs and convertible debt were excluded from the calculation of diluted loss per share, as the effect of including them would have been anti-dilutive. The dilutive effect of potential common shares issuable for stock options, RSUs and convertible debt on the weighted-average number of common shares outstanding would have been as follows:

	Three Months Ended March 31 2012
Basic weighted-average number of common shares outstanding (000s)		307,776
Dilutive effect of stock options and RSUs (000s)		7,725
Dilutive effect of convertible debt (000s)		896
Diluted weighted-average number of common shares outstanding (000s)		316,397

Schedule of weighted-average number of common shares outstanding

	Three Months Ended March 31 2012
Basic weighted-average number of common shares outstanding (000s)		307,776
Dilutive effect of stock options and RSUs (000s)		7,725
Dilutive effect of convertible debt (000s)		896
Diluted weighted-average number of common shares outstanding (000s)		316,397