Equity - Schedule of Stock Options, SARS, and Non-vested Restricted Stock (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock Options and SARs
Outstanding, end of year (in shares)	132,163
Exercisable at end of year (in shares)	83,054
Non-vested Restricted Stock
Outstanding, beginning of year (in shares)	103,891	83,956	62,597
Granted (in shares)	38,668	53,358	53,471
Canceled (in shares)	(2,711)	(1,184)	(4,042)
Vested and issued (in shares)	(39,823)	(32,239)	(28,070)
Outstanding, end of year (in shares)	100,025	103,891	83,956
Weighted- Average Grant Date Fair Value
Outstanding, beginning of year (in dollars per share)	$ 78.55	$ 71.76	$ 75.81
Granted (in dollars per share)	120.14	88.92	66.02
Canceled (in dollars per share)	97.44	79.82	69.66
Vested and issued (in dollars per share)	84.25	77.98	70.13
Outstanding, end of year (in dollars per share)	$ 91.84	$ 78.55	$ 71.76
Stock Appreciation Rights (SARs)
Stock Options and SARs
Outstanding, beginning of year (in shares)	130,409	116,417	98,836
Granted (in shares)	18,432	28,575	34,881
Exercised (in shares)	(16,678)	(14,583)	(15,912)
Canceled (in shares)	0	0	(1,388)
Outstanding, end of year (in shares)	132,163	130,409	116,417
Exercisable at end of year (in shares)	83,054	72,106	66,602
Weighted- Average Exercise Price
Outstanding, beginning of year (in dollars per share)	$ 66.10	$ 57.16	$ 46.47
Granted (in dollars per share)	120.38	88.68	74.80
Exercised (in dollars per share)	49.04	38.99	26.93
Canceled (in dollars per share)	0	0	86.15
Outstanding, end of year (in dollars per share)	75.82	66.10	57.16
Exercisable at end of year (in dollars per share)	$ 63.12	$ 52.85	$ 42.08