Note 15 - Share-Based and Other Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of outstanding awards and compensation expense recognized for each type of share-based award

The following table summarizes awards outstanding and compensation expense recognized for each type of share-based award as of and for the years ended:

	December 31,
($ in thousands)	2014				2013				2012
Share-Based Compensation Programs	Liability Recorded/ Equity Instruments Outstanding		Compensation Cost Recognized (1)		Liability Recorded/ Equity Instruments Outstanding		Compensation Cost Recognized (1)		Liability Recorded/ Equity Instruments Outstanding		Compensation Cost Recognized (1)
Liabilities:
RSUs—Cash-Settled	$	65,157	$	31,834	$	104,114	$	79,322	$	26,164	$	21,301
SARs—Cash-Settled	595		915		8,195		8,544		4,602		3,498
Liabilities	$	65,752	32,749		$	112,309	87,866		$	30,766	24,799
Equity:
Stock Options	3,029,348		2,531		3,989,641		2,488		4,402,344		1,787
Phantom Stock	284,645		3		284,645		3		343,094		4
RSUs—Equity Settled	2,056,596		7,461		1,273,556		4,336		990,881		1,466
Restricted Stock	—		—		—		21		131,374		57
ESPP			267				267				253
Equity			10,262				7,115				3,567
Total all share-based plans			$	43,011			$	94,981			$	28,366

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(1) For purposes of calculating compensation cost recognized, we generally consider time-vested awards effectively vested (and we recognize the full compensation costs) when grantees become retirement eligible. However, under the terms of our stock option awards granted in 2014, 2013, and 2012, legal vesting for retirement occurs when the grantee actually separates from service, with the exception of certain senior executives for whom vesting remains dependent on the stock price hurdle being met regardless of when the executive separates from service. Performance-based RSU awards granted in 2014, 2013, and 2012 provide that vesting remains dependent on the Company’s performance for the full term of the awards notwithstanding the grantee’s earlier retirement.

Schedule of additional information regarding all share-based awards

The following table reflects additional information regarding all share-based awards for the years indicated:

	Year Ended December 31,
($ in thousands except per-share amounts)	2014		2013		2012
Total compensation cost recognized	$	43,011	$	94,981	$	28,366
Less: Costs deferred as acquisition costs	1,047		1,769		465
Stock-based compensation expense	$	41,964	$	93,212	$	27,901

Schedule of information with regard to stock options

Information with regard to stock options for the periods indicated is as follows:

	Number of Shares		Weighted Average Exercise Price Per Share
Outstanding, December 31, 2013	3,989,641		$	10.63
Granted	289,500		15.44
Exercised	(29,765	)	8.69
Forfeited	(47,170	)	9.18
Expired	(1,172,858	)	25.28
Outstanding, December 31, 2014	3,029,348		5.46
Exercisable, December 31, 2014	938,740		4.64
Available for grant, December 31, 2014	4,258,907

Schedule of fully vested share options

The table below summarizes information regarding fully vested stock options as of December 31, 2014:

($ in millions, except per share amounts)	Outstanding and Exercisable
Number of options vested	938,740
Fair value of options vested during the year	$	1.8
Weighted-average exercise price per share	$	4.64
Aggregate intrinsic value (excess market price over exercise price)	$	11.3
Weighted-average remaining contractual term of options (in years)	2.1 years

Schedule of outstanding and exercisable options

The following table summarizes information concerning outstanding and exercisable options at December 31, 2014:

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number Outstanding	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price		Number Exercisable	Weighted Average Exercise Price
$2.45 - $3.58	2,228,150	5.18	$	2.73	712,610	$	2.89
$5.76 - $7.06	60,778	3.18	6.89		23,200	6.92
$10.42 - $15.44	740,420	7.16	13.56		202,930	10.49
	3,029,348	4.32			938,740

Schedule of valuation assumptions of stock options granted

We use the Monte Carlo valuation model in determining the grant date fair value of performance-based stock options issued to executives and non-executives using the assumptions noted in the following table:

	Year Ended December 31,
	2014		2013		2012
Derived service period (years)	2.99 - 3.96		3.02 - 4.00		3.14 - 4.00
Risk-free interest rate (1)	2.57	%	1.96	%	1.66	%
Volatility (2)	94.26	%	94.63	%	96.97	%
Dividend yield	0.07	%	0.07	%	0.41	%

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(1) The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant.

(2) Volatility is determined at the date of grant using historical share price volatility and expected life of each award.

Schedule of valuation assumptions of performance based RSU

The following are assumptions used in our calculation of the grant date fair value of performance-based RSUs to be settled in common stock:

	2014		2013
Expected life	3 years		3 years
Risk-free interest rate	1.0	%	0.4	%
Volatility	71.9	%	81.8	%
Dividend yield	0.06	%	0.07	%

Schedule of changes in RSU to be settled under 2008 Equity Plan

Information with regard to RSUs to be settled in stock for the periods indicated is as follows:

	Number of Shares		Weighted Average Grant Date Fair Value
Unvested, December 31, 2013	1,273,556		$	7.75
Granted	872,356		14.97
Vested	(31,599	)	6.88
Forfeited	(57,717	)	14.22
Unvested, December 31, 2014	2,056,596		10.65

Schedule of valuation assumptions of ESPP

The following are assumptions used in our calculation of ESPP compensation expense during 2014:

	January 1, 2014		July 1, 2014
Expected life	6 months		6 months
Risk-free interest rate	0.34	%	0.32	%
Volatility	46.99	%	36.69	%
Dividend yield	0.04	%	0.03	%