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Stock-Based Compensation Plans (Tables)
 12 Months Ended
Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan
Stock-based compensation expense, and the related income tax benefit, recognized in the accompanying Consolidated Statements of Income is summarized in the following table:
 
Years ended December 31,
(In thousands)
2013
 
2012
 
2011
Stock option expense
$
3,902

 
$
2,405

 
$
809

Restricted stock expense
6,762

 
6,550

 
5,231

Stock-based compensation
$
10,664

 
$
8,955

 
$
6,040

 
 
 
 
 
 
Income tax benefit
$
5,344

 
$
2,841

 
$
2,127
Summary Of Weighted-Average Assumptions
The fair value of each option award is estimated on the date of grant using the Black-Scholes Option-Pricing Model with the following weighted-average assumptions:
 
2013
 
2012
 
2011
Weighted-average assumptions:
 
 
 
 
 
Expected term
6.9 years

 
6.6 years

 
6.5 years

Expected dividend yield
1.80
%
 
1.00
%
 
1.00
%
Expected forfeiture rate
10.00
%
 
9.00
%
 
9.00
%
Expected volatility
58.97
%
 
61.03
%
 
57.41
%
Risk-free interest rate
1.36
%
 
1.30
%
 
2.68
%
Fair value of option at grant date
$10.96
 
$11.71
 
$12.74
Summary Of Stock Option Activity
The following table summarizes stock option activity under the plans for the year ended December 31, 2013:
 
Number of
Shares
Weighted-Average
Exercise Price
Outstanding, at beginning of year
2,476,645

$
28.99

Granted
436,043

23.00

Exercised
(165,036
)
16.81

Forfeited/expired
(421,855
)
38.72

Outstanding, at end of year
2,325,797

$
26.97

 
 
 
Exercisable, at end of year
1,751,602

$
28.19

Expected to vest, at end of year
538,731

$
23.24
Summary of Options Outstanding and Options Exercisable
The following table summarizes information about options outstanding and options exercisable at December 31, 2013:
  
Options Outstanding
 
Options Exercisable
Range of Exercise Prices
Number of
Shares
Weighted-
Average
Remaining
Contractual
Life (years)
Weighted-
Average
Exercise
Price
 
Number of
Shares
Weighted-
Average
Remaining
Contractual
Life (years)
Weighted-
Average
Exercise
Price
$5.01 — 20.00
660,602

5.2
$
10.63

 
658,546

5.2
$
10.62

20.01 — 30.00
815,271

8.0
23.45

 
243,132

6.0
23.84

30.01 — 40.00
259,572

3.6
32.23

 
259,572

3.6
32.23

40.01 — 50.00
590,352

1.8
47.81

 
590,352

1.8
47.81

 
2,325,797

5.1
$
26.97

 
1,751,602

3.9
$
28.19
Summary Of Restricted Stock Activity
The following table summarizes performance-based restricted stock activity under the Plans for the year ended December 31, 2013:
 
Number of
Shares
Weighted-average
Grant Date
Fair Value
Outstanding, at beginning of year
94,408

$
25.44

Granted
163,519

24.04

Vested (1)
(84,652
)
24.74

Forfeited
(34,825
)
24.55

Outstanding, at end of year
138,450

$
24.43

(1) Vested for purposes of recording compensation expense.
The following table summarizes time-based restricted stock activity under the Plans for the year ended December 31, 2013:
 
Number of
Shares
Weighted-average
Grant Date
Fair Value
 
Number of
Units
Weighted-average
Grant Date
Fair Value
Outstanding, at beginning of year
249,294

$
22.12

 
33,742

$
22.12

Granted
246,133

23.26

 
—

—

Vested (1)
(205,601
)
22.36

 
(22,259
)
22.75

Forfeited
(22,707
)
22.40

 
(9,778
)
21.67

Outstanding, at end of year
267,119

$
22.96

 
1,705

$
22.75

(1) Vested for purposes of recording compensation expense