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Share-Based Compensation - Cash-settled Restricted Stock Activity (Details) - Cash-settled Restricted Stock
 3 Months Ended
Mar. 31, 2023
$ / shares
shares
Shares  
Unvested, beginning balance (in shares) | shares 57,356
Granted (in shares) | shares 19,755
Vested (in shares) | shares (14,300)
Forfeited (in shares) | shares (1,265)
Unvested, ending balance (in shares) | shares 61,546
Weighted-Average Grant Date Fair Value  
Unvested, beginning balance (in dollars per share) | $ / shares $ 228.33
Granted (in dollars per share) | $ / shares 225.66
Vested (in dollars per share) | $ / shares 230.78
Forfeited (in dollars per share) | $ / shares 231.03
Unvested, ending balance (in dollars per share) | $ / shares $ 231.03