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Note 15 - Share-Based and Other Compensation Programs (Tables)
 12 Months Ended
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Compensation Cost Recognized
The following table summarizes the compensation cost recognized and additional information regarding all share-based awards for the years indicated:
 
Year Ended December 31,
(In thousands)
2019
 
2018
 
2017
Compensation cost recognized (1):
 
 
 
 
 
RSUs
$
20,694

 
$
16,591

 
$
12,207

Non-Qualified Stock Options
274

 
603

 
851

Phantom Stock
2

 
2

 
2

Employee Stock Purchase Plan
444

 
453

 
432

Total compensation cost recognized
21,414

 
17,649

 
13,492

Less: Costs deferred as acquisition costs
373

 
324

 
269

Stock-based compensation expense
$
21,041

 
$
17,325

 
$
13,223

______________________
(1)
Compensation cost is generally recognized over the periods that an employee provides service in exchange for the award. For purposes of calculating compensation cost recognized, we generally consider awards effectively vested (and we recognize the full compensation costs) when grantees become retirement eligible.
Schedule of RSUs Equity-Settled
Information with regard to RSUs to be settled in stock for the periods indicated is as follows:
 
Performance-Based
 
Time-Vested
 
Number of
Shares
 
Weighted-Average
Grant Date
Fair Value
 
Number of
Shares
 
Weighted-Average
Grant Date
Fair Value
Unvested, December 31, 2018 (1) 
2,692,949

 
$
14.32

 
704,062

 
$
16.51

Granted (2) 
656,854

 
$
21.45

 
380,568

 
$
22.76

Performance adjustment (3) 
400,757

 
$
—

 
—

 
$
—

Vested (4) 
(1,246,824
)
 
$
8.43

 
(368,325
)
 
$
16.81

Forfeited
(55,389
)
 
$
17.81

 
(18,729
)
 
$
18.31

Unvested, December 31, 2019 (1) 
2,448,347

 
$
17.03

 
697,576

 
$
19.72


______________________
(1)
The final amount of RSUs distributed depends on the level of performance achieved along with each employee’s continued service through the vest date, which could result in changes in vested RSUs.
(2)
For performance-based RSUs, amount represents the probable outcome at grant date.
(3)
Represents an adjustment to the number of unvested performance-based RSUs due to changes during the period in our estimated payouts, which can range from 0 to 200% of target depending on results over the applicable performance periods.
(4)
Represents amounts vested during the year, which can include both original shares granted and the impact of performance adjustments.
Schedule of Information with regard to Stock Options
Information with regard to stock options for the periods indicated is as follows:
($ in thousands, except per-share amounts)
Number of
Shares
 
Weighted
Average
Exercise Price
Per Share
 
Weighted
Average
Remaining Contractual Term
 
Aggregate Intrinsic Value (1)
Outstanding, December 31, 2018
1,312,791

 
$
9.39

 
 
 
 
Granted
—

 
—

 
 
 
 
Exercised
(329,900
)
 
7.41

 
 
 
 
Forfeited
(1,344
)
 
12.25

 
 
 
 
Expired
—

 
—

 
 
 
 
Outstanding, December 31, 2019
981,547

 
10.05

 
4.0
 
$
14,833

Exercisable, December 31, 2019
853,041

 
$
9.73

 
3.7
 
$
13,163

Available for grant, December 31, 2019
6,266,017

 
 
 
 
 
 

______________________
(1)
Based on the market price of $25.16 at December 31, 2019.
Schedule of Information of Exercised Stock Options
The following table summarizes additional information concerning stock option activity for the periods indicated:
 
Years Ended December 31,
($ in thousands, except per-share amounts)
2019
 
2018
 
2017
Aggregate intrinsic value of options exercised
$
4,984

 
$
6,274

 
$
14,389

Tax benefit of options exercised
1,047

 
1,318

 
5,036

Cash received from options exercised
2,416

 
1,425

 
7,131
Schedule of Outstanding and Exercisable Stock Options
The following table summarizes information concerning outstanding and exercisable options at December 31, 2019:
 
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
377,117

 
2.4
 
$
2.45

 
377,117

 
$
2.45

$10.42 - $15.44
449,976

 
4.9
 
$
13.54

 
321,470

 
$
14.09

$18.42
154,454

 
5.3
 
$
18.42

 
154,454

 
$
18.42

 
981,547

 
4.0
 
$
10.05

 
853,041

 
$
9.73
Schedule of Valuation Assumptions of ESPP
The following assumptions were used in our calculation of Employee Stock Purchase Plan compensation expense during 2019:
 
January 1, 2019
 
July 1, 2019
Expected life
6 months

 
6 months

Risk-free interest rate
2.76
%
 
2.18
%
Volatility
36.24
%
 
27.90
%
Dividend yield
0.06
%
 
0.04
%