Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

Stock-Based Compensation

Summary of stock option activity

	SHARES			WEIGHTED- AVERAGE EXERCISE PRICE	WEIGHTED- AVERAGE REMAINING CONTRACTUAL LIFE (in years)		AGGREGATE INTRINSIC VALUE (in thousands)
Options outstanding at January 1, 2011	3,722,656		$	33.29	2.8
Granted	781,000			16.52
Exercised	(44,398	)		11.97
Forfeited	(510,384	)		43.36
Options outstanding at December 31, 2011	3,948,874		$	28.91	2.4	$	553
Available for future grant	3,346,508
Total shares reserved at December 31, 2011	7,295,382
Options exercisable at December 31, 2011	2,574,246		$	34.35	1.7	$	369
Options outstanding at January 1, 2012	3,948,874		$	28.91	2.4
Granted	756,000			18.55
Exercised	(568,293	)		18.89
Forfeited	(717,158	)		35.38
Options outstanding at December 31, 2012	3,419,423		$	26.92	2.9	$	42,992
Available for future grant	3,016,108
Total shares reserved at December 31, 2012	6,435,531
Options exercisable at December 31, 2012	1,967,786		$	33.10	1.6	$	16,939
Options outstanding at January 1, 2013	3,419,423		$	26.92	2.9
Granted	–			–
Exercised	(863,933	)		24.55
Forfeited	(229,289	)		34.88
Options outstanding at December 31, 2013	2,326,201		$	27.02	2.3	$	44,123
Available for future grant	3,303,855
Total shares reserved at December 31, 2013	5,630,056
Options exercisable at December 31, 2013	1,650,893		$	30.74	1.6	$	26,908

Summary of stock options outstanding and exercisable

	OPTIONS OUTSTANDING					OPTIONS EXERCISABLE
RANGE OF EXERCISE PRICES		NUMBER OUTSTANDING	WEIGHTED- AVERAGE REMAINING LIFE (in years)		WEIGHTED- AVERAGE EXERCISE PRICE		NUMBER EXERCISABLE		WEIGHTED- AVERAGE EXERCISE PRICE
$14.13 to $18.05		678,133	1.8	$	16.02		454,803	$	15.75
$18.22 to $23.27		1,053,994	3.5		20.36		615,349		21.89
$30.60 to $72.13		594,074	1.0		51.39		580,741		51.87

Summary of weighted-average inputs used and grant date fair values determined for stock options granted

		2013			2012			2011
Expected volatility		–	%		49.3	%		51.0	%
Expected dividend yield		–	%		0.7	%		0.7	%
Expected term (in years)		–			4.5			3.5
Risk-free rate		–	%		0.8	%		1.4	%
Weighted-average grant-date fair value	$	–		$	7.21		$	6.02

Summary of the Company's nonvested options

	2013					2012					2011
		SHARES			WEIGHTED- AVERAGE GRANT-DATE FAIR VALUE		SHARES			WEIGHTED- AVERAGE GRANT-DATE FAIR VALUE		SHARES			WEIGHTED- AVERAGE GRANT-DATE FAIR VALUE
Nonvested options outstanding at January 1		1,451,637		$	7.08		1,374,628		$	7.00		1,142,130		$	8.31
Granted		–			–		756,000			7.21		781,000			6.02
Vested		(697,667	)		7.35		(611,659	)		7.03		(498,507	)		8.37
Forfeited		(78,662	)		6.78		(67,332	)		7.47		(49,995	)		7.89
Nonvested options outstanding at December 31		675,308		$	6.84		1,451,637		$	7.08		1,374,628		$	7.00

Summary of activity that relates to the Company's restricted stock unit awards

	2013		2012		2011
Restricted stock units at January 1	774,217		657,825		727,317
Shares awarded	143,594		473,408		305,000
Shares vested	(354,369	)	(350,349	)	(314,492	)
Shares forfeited	(24,336	)	(6,667	)	(60,000	)
Restricted stock units at December 31	539,106		774,217		657,825