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Compensation Plans (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Roll-forward of outstanding restricted stock grants issued The following table represents a roll-forward of outstanding restricted stock and related activity for the year ended December 31, 2021:
SharesWeighted-Average
Grant Date Price
per Share
Outstanding Restricted Stock as of December 31, 2020183,718 $173.80 
Grants issued69,879 158.92 
Grants vested(32,580)180.50 
Grants forfeited(19,847)171.44 
Outstanding Restricted Stock as of December 31, 2021201,170 $165.61 
Expense recognition of deferred compensation The recognition of compensation expense related to deferred compensation over the remaining vesting periods is as follows:
20222023202420252026ThereafterTotal
$7,362,870 $5,473,055 $1,979,304 $371,883 $81,456 $137 $15,268,705 
Schedule of Grants Issued and Grant Date Fair Value
The following table represents shares issued as part of the Company’s incentive compensation program during the years ended December 31, 2021, 2020, and 2019:
Shares IssuedGrant Date Value
December 31, 20213,681 $529,806 
December 31, 202023,640 $3,396,359 
December 31, 201924,048 $3,655,296 
Summary of company expenses attributable to the 401(k) Plan The following table summarizes the Company’s expenses attributable to the 401(k) plan during the years ended December 31, 2021, 2020 and 2019:
Shares IssuedShare ContributionsCash ContributionsTotal Company Contributions
December 31, 2021506 $87,667 $2,779,641 $2,867,308 
December 31, 202020,976 $2,511,746 — $2,511,746 
December 31, 201917,651 $2,496,936 — $2,496,936