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Restricted Stock, Performance Share and Cash Awards (Tables)
12 Months Ended
Dec. 31, 2020
Text Block [Abstract]  
Schedule of Restricted Stock Awards Vesting Periods

The vesting periods of the 2020, 2019 and 2018 restricted stock unit awards are as follows (in actual shares):

 

 

 

Restricted Stock Units Granted

 

Vesting Period

 

2020

 

 

2019

 

 

2018

 

One year

 

 

16,740

 

 

 

14,800

 

 

 

18,900

 

Two years

 

 

8,870

 

 

 

12,000

 

 

 

12,700

 

Five years

 

 

397,000

 

 

 

387,900

 

 

 

407,500

 

Total shares granted

 

 

422,610

 

 

 

414,700

 

 

 

439,100