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Equity Compensation Plans (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Equity Compensation Plans
The unamortized compensation cost of awards issued under the Incentive Plan and purchases under the Employee Stock Purchase Plan totaled $21 million at December 31, 2017, as shown in the following table.
Table 16.1 – Activities of Equity Compensation Costs by Award Type
 
 
Year Ended December 31, 2017
(In Thousands)
 
Restricted Stock
 
Deferred Stock Units
 
Performance Stock Units
 
Employee Stock Purchase Plan
 
Total
Unrecognized compensation cost at beginning of period
 
$
2,091

 
$
11,506

 
$
4,549

 
$
—

 
$
18,146

Equity grants
 
2,247

 
8,797

 
3,050

 
129

 
14,223

Equity grant forfeitures
 
(286
)
 
(472
)
 
—

 
—

 
(758
)
Equity compensation expense
 
(1,244
)
 
(6,467
)
 
(2,301
)
 
(129
)
 
(10,141
)
Unrecognized Compensation Cost at End of Period
 
$
2,808

 
$
13,364

 
$
5,298

 
$
—

 
$
21,470
Restricted Stock Outstanding
The following table summarizes the activities related to restricted stock for the years ended December 31, 2017, 2016, and 2015.
Table 16.2 – Restricted Stock Activities
 
Years Ended December 31,
 
2017
 
2016
 
2015
 
Shares
 
Weighted
Average
Grant Date
Fair Market
Value
 
Shares
 
Weighted
Average
Grant Date
Fair Market
Value
 
Shares
 
Weighted
Average
Grant Date
Fair Market
Value
Outstanding at beginning of period
204,515

 
$
14.27

 
187,180

 
$
18.22

 
109,464

 
$
15.97

Granted
134,364

 
16.52

 
144,056

 
11.89

 
141,069

 
19.03

Vested
(61,928
)
 
14.97

 
(50,107
)
 
17.28

 
(42,675
)
 
14.87

Forfeited
(19,444
)
 
14.78

 
(76,614
)
 
18.01

 
(20,678
)
 
18.74

Outstanding at End of Period
257,507

 
$
15.23

 
204,515

 
$
14.27

 
187,180

 
$
18.22
Deferred Stock Units Activity
The following table summarizes the activities related to DSUs for the years ended December 31, 2017, 2016, and 2015.
Table 16.3 – Deferred Stock Units Activities
 
Years Ended December 31,
 
2017
 
2016
 
2015
 
Units
 
Weighted
Average
Grant Date
Fair Market
Value
 
Units
 
Weighted
Average
Grant Date
Fair Market
Value
 
Units
 
Weighted
Average
Grant Date
Fair Market
Value
Outstanding at beginning of period
1,848,862

 
$
16.46

 
2,407,154

 
$
16.45

 
2,168,824

 
$
16.20

Granted
565,921

 
16.01

 
565,061

 
13.33

 
583,958

 
16.11

Distributions
(504,417
)
 
18.09

 
(1,060,459
)
 
14.64

 
(335,461
)
 
14.20

Forfeitures
(31,875
)
 
14.80

 
(62,894
)
 
18.66

 
(10,167
)
 
16.60

Balance at End of Period
1,878,491

 
$
15.92

 
1,848,862

 
$
16.46

 
2,407,154

 
$
16.45
Summary of Activity Related to ESPP
The following table summarizes the activities related to the ESPP for the years ended December 31, 2017, 2016, and 2015.
Table 16.4 – Employee Stock Purchase Plan Activities
 
 
Years Ended December 31,
(In Thousands)
 
2017
 
2016
 
2015
Balance at beginning of period
 
$
3

 
$
18

 
$
3

Employee purchases
 
305

 
290

 
475

Cost of common stock issued
 
(304
)
 
(305
)
 
(460
)
Balance at End of Period
 
$
4

 
$
3

 
$
18
Summary of Activity Related to Executive Deferred Compensation Plan
The following table summarizes the cash account activities related to the EDCP for the years ended December 31, 2017, 2016, and 2015.
Table 16.5 – EDCP Cash Accounts Activities
 
 
Years Ended December 31,
(In Thousands)
 
2017
 
2016
 
2015
Balance at beginning of period
 
$
2,088

 
$
2,095

 
$
2,049

New deferrals
 
750

 
558

 
600

Accrued interest
 
58

 
53

 
61

Withdrawals
 
(725
)
 
(618
)
 
(615
)
Balance at End of Period
 
$
2,171

 
$
2,088

 
$
2,095