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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of weighted average assumptions

	Six Months Ended June 30, 2013
Expected life in years	4.5
Risk-free interest rate	0.66	%
Volatility	49.19	%
Dividend yield	0.0	%

Summary of stock option activity

	Stock Options (in thousands)		Weighted Average Exercise Price Per Share		Weighted Average Remaining Life (in years)	Aggregate Intrinsic Value (in thousands)
Options outstanding, December 31, 2012	2,584		$	27.02
Granted	177		25.04
Exercised	(309	)	17.64
Cancelled	(11	)	48.96
Options outstanding, June 30, 2013	2,441		27.96		3.8	$	19,060
Options exercisable, June 30, 2013	1,731		33.00		3.0	10,215

Schedule of restricted stock, restricted stock unit, cash settled restricted stock unit and cash settled performance award activity

	Shares (in thousands)		Weighted Average Grant-Date Fair Value Per Share
Non-vested awards, December 31, 2012	1,992		$	16.12
Granted	701		25.10
Vested	(756	)	18.63
Cancelled	(22	)	19.43
Non-vested awards, June 30, 2013 (1)	1,915		18.38

(1) Non-vested awards as of June 30, 2013 are comprised of 472 thousand cash settled restricted stock units and cash settled performance awards and 1,443 thousand restricted stock shares and stock settled restricted stock units.

Schedule of phantom unit activity

	Phantom Units (in thousands)		Weighted Average Grant-Date Fair Value per Unit
Phantom units outstanding, December 31, 2012	64		$	23.62
Granted	55		23.76
Vested	(20	)	24.28
Phantom units outstanding, June 30, 2013	99		23.57