Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Impact of Stock-Based Compensation in Consolidated and Combined Statements of Income
Stock-based compensation expense and the associated tax benefits impacting our Consolidated Statements of Income were as follows:


Year Ended December 31,
(In thousands)

2017
 
2016
Compensation costs for equity-based awards

$
2,863

 
$
3,982

Compensation costs for liability-based awards

1,604

 
667

Total compensation costs, pre-tax

$
4,467

 
$
4,649

Future tax benefit

$
965

 
$
1,654
Schedule of Non-Qualified Stock Options, Activity
A summary of the status of our NQOs as of December 31, 2017, 2016 and 2015 and changes during the years then ended is presented below:


Year Ended December 31,


2017

2016

2015
(In thousands, except per share data)
 
Shares
 
Weighted Average Exercise Price Per Share
 
Shares
 
Weighted Average Exercise Price Per Share
 
Shares
 
Weighted Average Exercise Price Per Share
Outstanding at January 1,

384

 
$21.47
 
486

 
$19.25
 
446

 
$17.43
Granted

75

 
$22.82
 
87

 
$20.06
 
58

 
$31.52
Exercised

(110
)
 
$18.41
 
(158
)
 
$13.63
 
(18
)
 
$13.37
Forfeited, canceled or expired

(24
)
 
$22.61
 
(31
)
 
$22.51
 
—

 
$0.00
Outstanding at December 31,

325

 
$22.74
 
384

 
$21.47
 
486

 
$19.25
Options exercisable

201

 
$22.57
 
214

 
$20.35
 
212

 
$16.13
Schedule of Non-Qualified Stock Options Outstanding and Exercisable
The following table summarizes information about NQOs outstanding and exercisable as of December 31, 2017:
(In thousands, except per share data)
 
Options Outstanding
 
Options Exercisable
Range of Exercise Prices Per Share
 
Number
 
Weighted Average Remaining Contractual Life (In Years)
 
Weighted Average Exercise Price Per Share
 
Aggregate Intrinsic Value
 
Number
 
Weighted Average Remaining Contractual Life (In Years)
 
Weighted Average Exercise Price Per Share
 
Aggregate Intrinsic Value
$12.94 - $21.98
 
225

 
7.63
 
$
20.31

 
$
2,371

 
125

 
6.71
 
$
19.61

 
$
1,398

$22.16 - $32.49
 
100

 
6.93
 
28.18

 
326

 
76

 
6.55
 
27.38

 
299

Total options and aggregate intrinsic value
 
325

 
7.42
 
$
22.74

 
$
2,697

 
201

 
6.65
 
$
22.57

 
$
1,697
Schedule of Weighted Average Assumptions
The following weighted-average assumptions were utilized in deriving the fair value for NQOs:
 
 
Year Ended December 31,
 

2017
 
2016
 
2015
Expected volatility
 
30.8
%
 
30.2
%
 
34.1
%
Expected life (in years)

7

 
7

 
7

Risk-free rates

2.30
%
 
1.69
%
 
2.00
%
Weighted-average grant date fair value per share

$
8.48

 
$
7.06

 
$
12.42
Schedule of Restricted Stock Units, Activity
The table below provides a roll-forward of outstanding RSUs for the years ended December 31, 2017, 2016, and 2015.


Year Ended December 31,


2017

2016

2015
(In thousands, except per share data)

Shares
 
Weighted Average Grant Date Fair Value Per Share
 
Shares
 
Weighted Average Grant Date Fair Value Per Share
 
Shares
 
Weighted Average Grant Date Fair Value Per Share
Outstanding at January 1,

285

 
$
23.01

 
350

 
$
22.47

 
423

 
$19.28
Granted

144

 
$
23.74

 
181

 
$
21.25

 
104

 
$26.69
Vested

(171
)
 
$
23.18

 
(206
)
 
$
20.56

 
(171
)
 
$19.03
Forfeited or canceled

(37
)
 
$
21.69

 
(40
)
 
$
22.68

 
(6
)
 
$19.86
Outstanding at December 31,

221

 
$
23.58

 
285

 
$
23.01

 
350

 
$22.47