Stockholders' Equity - Restricted Stock (Details) - $ / shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Time Based Restricted Stock Units
Number of Units
Outstanding at beginning of period (in shares)	22,332	12,829
Granted (in shares)	11,692	7,991
Adjustment for dividend (in shares)	63	26
Vested and distributed (in shares)	(3,294)	(2,718)
Forfeited (in share)		(813)
Outstanding at end of period (in shares)	30,793	17,315
Grant Date Fair Value
Outstanding at beginning of period (in per share)	$ 66.56	$ 64.43
Granted (in per share)	63.82	76.71
Vested and distributed (in per share)	67.09	63.15
Forfeited (in per share)		63.15
Outstanding at end of period (in per share)	$ 65.33	$ 70.26
Time Based Restricted Stock Units | Employee
Grant Date Fair Value
Vesting period	3 years
Time Based Restricted Stock Units | Non-employee directors.
Grant Date Fair Value
Vesting period	1 year
Performance Shares
Number of Units
Outstanding at beginning of period (in shares)	15,054	8,136
Granted (in shares)	11,685	7,999
Adjustment for dividend (in shares)	43	16
Forfeited (in share)		(1,219)
Outstanding at end of period (in shares)	26,782	14,932
Grant Date Fair Value
Outstanding at beginning of period (in per share)	$ 89.50	$ 78.97
Granted (in per share)	73.25	100.19
Forfeited (in per share)		79.33
Outstanding at end of period (in per share)	$ 82.26	$ 90.22
Performance Shares | Employee
Grant Date Fair Value
Vesting period	3 years