Equity Compensation (Tables)

6 Months Ended

Jun. 30, 2013

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

Stock-Based Compensation Expense and Related Income Tax Benefit

The stock-based compensation expense and related income tax benefit recognized in our Condensed Consolidated Statements of Income in the periods indicated were as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Stock-based compensation expense	$	2,301		$	4,272		$	5,394		$	8,755
Income tax (benefit)	($	886	)	($	1,645	)	($	2,077	)	($	3,371	)

Stock Options Granted, Forfeited, Exercised and Expired

The stock options granted, forfeited, exercised and expired in the period indicated were as follows:

	Six Months Ended June 30, 2013
				Weighted					Weighted
				Average		Aggregate			Average		Aggregate
	# of			Exercise		Exercise			Remaining		Intrinsic
	Shares			Price		Price			Contractual Term		Value (1)
Outstanding at beginning of period		1,574,604		$	84.90	$	133,691
Granted		154,000		$	19.31		2,974
Forfeited		(16,668	)	$	75.11		(1,252	)
Exercised		0		$	0.00		0
Expired		(286,494	)	$	62.38		(17,871	)
Outstanding at end of period		1,425,442		$	82.46	$	117,541			2.9	$	784
Exercisable at end of period		1,135,937		$	92.16	$	104,687			2.6	$	0

(1) The aggregate intrinsic value of the stock options was calculated by identifying those stock options that had a lower exercise price than the closing market price of our common stock on June 28, 2013 and multiplying the difference between the closing market price of our common stock and the exercise price of each of those stock options by the number of shares subject to those stock options that were outstanding or exercisable, as applicable.

Stock Options Granted and Exercised

The following table sets forth information regarding the stock options granted and exercised in the periods indicated:

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Shares subject to stock options granted		154,000		0		154,000		156,500
Weighted average grant date fair value per share	$	9.16	$	0	$	9.16	$	31.36
Shares subject to stock options exercised		0		93,911		0		197,965
Intrinsic value of stock options exercised	$	0	$	2,299	$	0	$	4,788
Proceeds received from stock options exercised	$	0	$	3,423	$	0	$	8,091
Tax benefits realized from stock options exercised	$	0	$	733	$	0	$	1,597

Assumptions used to Estimate Grant Date Fair Value of Stock Options

The fair value of each stock option grant was estimated on the date of grant using the following assumptions:

	Three Months Ended June 30,				Six Months Ended June 30,
	2013			2012	2013			2012
Risk-free interest rates		0.7	%	Not applicable		0.7	%		0.7	%
Expected lives (in years)		4.6		Not applicable		4.6			4.5
Volatility		60	%	Not applicable		60	%		51	%
Dividend yield		None		Not applicable		None			None

Number of Restricted Stock Units (RSUs) Granted, Forfeited and Vested

The following table sets forth the number of RSUs that were granted, forfeited and vested in the period indicated:

	Six Months Ended June 30, 2013
	# of RSUs			Weighted Average Grant Date Fair Value
Unvested at beginning of period		413,645		$	75.35
Granted		514,317		$	19.86
Forfeited		(55,303	)	$	64.23
Vested		(66,334	)	$	89.76
Unvested at end of period		806,325		$	39.53