Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

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

Summary of stock option activity

The following table summarizes stock option activity during the six months ended June 30, 2013:

(options in thousands)	Options		Weighted-Average Exercise Price
	(000's)		(a)
Stock options outstanding at January 1, 2013	2,459		$	11.50
Granted	291		3.41
Exercised	—		—
Canceled/expired/forfeited	(122	)	9.80
Stock options outstanding at June 30, 2013	2,628		$	10.69

(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 an exercise 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 six months ended June 30, 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	(242	)	11.89
Outstanding at June 30, 2013	1,536		$	7.26

Summary of restricted stock unit (RSU) activity

The following table summarizes RSU activity during the six months ended June 30, 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	(259	)	9.35
Canceled/expired/forfeited	(60	)	6.62
Outstanding at June 30, 2013	1,180		$	4.52