Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of stock option activity

The following table summarizes stock option activity during the three months ended March 31, 2013:

(options in thousands)	Options		Weighted-Average Exercise Price
	(000's)		(a)
Stock options outstanding at January 1, 2013	2,459		$	11.50
Granted	233		3.36
Exercised	—		—
Canceled/expired/forfeited	(42	)	10.60
Stock options outstanding at March 31, 2013	2,650		$	10.80

(a) The weighted-average exercise price of options outstanding is shown in US dollars as the majority of the options granted starting in 2011 have a strike price denominated in US dollars. Options with a Canadian dollar strike price have been converted to US dollars for disclosure purposes using the exchange rates on the respective date of grant.

Summary of Performance-based units (PBU) activity

The following table summarizes the PSU activity during the three months ended March 31, 2013:

(units in thousands)	Units		Weighted-Average Fair Value
	(000's)
Outstanding at January 1, 2013	845		$	11.95
PSUs granted	933		4.21
Canceled/expired/forfeited	(12	)	12.01
Outstanding at March 31, 2013	1,766		$	7.86

Summary of restricted stock unit (RSU) activity

The following table summarizes RSU activity during the three months ended March 31, 2013:

	Units		Weighted-Average Fair Value
	(000's)
Outstanding at January 1, 2013	534		$	9.30
RSUs granted	965		3.31
RSUs vested and common shares issued	(151	)	8.82
Canceled/expired/forfeited	(22	)	8.82
Outstanding at March 31, 2013	1,326		$	5.00