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Stock Options and Other Equity-Based Incentive Instruments - Stock Option Activity (Detail)
 3 Months Ended
Mar. 31, 2022
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Options outstanding at beginning of period (in shares) | shares 78,825
Options granted (in shares) | shares 0
Options exercised (in shares) | shares (3,325)
Options forfeited (in shares) | shares 0
Options outstanding at end of period (in shares) | shares 75,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]  
Weighted Average Exercise Price at beginning of period (in USD per share) | $ / shares $ 19.28
Weighted Average Exercise Price of Options Granted (in USD per share) | $ / shares 0
Weighted Average Exercise Price of Options Exercised (in USD per share) | $ / shares 16.59
Weighted Average Exercise Price of Options Forfeited (in USD per share) | $ / shares 0
Weighted Average Exercise Price at end of period (in USD per share) | $ / shares $ 19.40