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Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Summary of Options Granted, Exercised and Forfeited

Options granted, exercised and forfeited under the stock incentive plan are summarized as follows:

 

 

 

 

 

 

 

Weighted

 

 

Weighted

 

 

 

 

 

 

 

 

 

 

 

Average

 

 

Average

 

 

Aggregate

 

 

 

 

 

 

 

Exercise

 

 

Grant Date

 

 

Intrinsic

 

 

 

Options

 

 

Price

 

 

Fair Value

 

 

Value

 

Options outstanding, December 31, 2013

 

 

813

 

 

$

15.44

 

 

$

7.96

 

 

 

 

 

Granted

 

 

—

 

 

 

—

 

 

 

—

 

 

 

 

 

Exercised

 

 

(202

)

 

$

10.48

 

 

$

6.48

 

 

 

 

 

Forfeited or expired

 

 

(10

)

 

$

24.35

 

 

$

9.84

 

 

 

 

 

Options outstanding, December 31, 2014

 

 

601

 

 

$

16.97

 

 

$

8.42

 

 

 

 

 

Granted

 

 

—

 

 

 

—

 

 

 

—

 

 

 

 

 

Exercised

 

 

(111

)

 

$

13.61

 

 

$

7.25

 

 

 

 

 

Forfeited or expired

 

 

—

 

 

 

—

 

 

 

—

 

 

 

 

 

Options outstanding, December 31, 2015

 

 

490

 

 

$

17.73

 

 

$

8.69

 

 

 

 

 

Granted

 

 

—

 

 

 

—

 

 

 

—

 

 

 

 

 

Exercised

 

 

(69

)

 

$

9.64

 

 

$

6.75

 

 

 

 

 

Forfeited or expired

 

 

—

 

 

 

—

 

 

 

—

 

 

 

 

 

Options outstanding, December 31, 2016

 

 

421

 

 

$

19.06

 

 

$

9.01

 

 

$

4,601

 

Options exercisable, December 31, 2016

 

 

421

 

 

$

19.06

 

 

 

 

 

 

$

4,601

 

 
Summary of Information about Stock Options Outstanding

The following table summarizes information about stock options outstanding at December 31, 2016:

 

 

 

Options Outstanding

 

 

Options Exercisable

 

 

 

 

 

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

 

Remaining

 

 

Average

 

 

 

 

 

 

Remaining

 

 

Average

 

 

 

Number

 

 

Contractual

 

 

Exercise

 

 

Number

 

 

Contractual

 

 

Exercise

 

Exercise Price

 

Outstanding

 

 

Life (Years)

 

 

Price

 

 

Outstanding

 

 

Life (Years)

 

 

Price

 

$9.64 - $9.91

 

 

140

 

 

 

1.91

 

 

$

9.68

 

 

 

140

 

 

 

1.91

 

 

$

9.68

 

$14.99 - $18.01

 

 

106

 

 

 

3.08

 

 

$

15.63

 

 

 

106

 

 

 

3.08

 

 

$

15.63

 

$27.61 - $30.01

 

 

175

 

 

 

4.49

 

 

$

28.64

 

 

 

175

 

 

 

4.49

 

 

$

28.64

 

$9.64 - $30.01

 

 

421

 

 

 

3.28

 

 

$

19.06

 

 

 

421

 

 

 

3.28

 

 

$

19.06

 

 
Reconciliation of Unvested Balance of Restricted Stock

The following table reconciles the unvested balance of restricted stock:

 

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

 

Average

 

 

 

Number of

 

 

Grant Date

 

 

 

Shares

 

 

Fair Value

 

Unvested balance, December 31, 2013

 

 

448

 

 

$

19.89

 

Granted

 

 

283

 

 

$

28.79

 

Vested

 

 

(191

)

 

$

23.56

 

Forfeited

 

 

(38

)

 

$

25.44

 

Unvested balance, December 31, 2014

 

 

502

 

 

$

23.09

 

Granted

 

 

150

 

 

$

28.96

 

Vested

 

 

(213

)

 

$

24.78

 

Forfeited

 

 

(31

)

 

$

23.96

 

Unvested balance, December 31, 2015

 

 

408

 

 

$

24.30

 

Granted

 

 

212

 

 

$

29.42

 

Vested

 

 

(223

)

 

$

25.50

 

Forfeited

 

 

(12

)

 

$

29.15

 

Unvested balance, December 31, 2016

 

 

385

 

 

$

26.28

 

 
Fair Value of Restricted Stock Awards Vested

The following table indicates the fair value of all restricted stock awards that vested during the years ended December 31, 2016, 2015 and 2014:

 

 

 

Year Ended

 

 

Year Ended

 

 

Year Ended

 

 

 

December 31,

 

 

December 31,

 

 

December 31,

 

 

 

2016

 

 

2015

 

 

2014

 

Fair value of restricted stock awards vested

 

$

6,688

 

 

$

6,350

 

 

$

5,632