Stock-Based Compensation - Schedule of Stock Option Activity (Details) - $ / shares	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2021
Options
Options outstanding, beginning of period (in shares)	471,676	376,769	433,026	1,083,402
Options forfeited (in shares)	(2,002)		(4,170)	(8,065)
Options expired (in shares)		(9,218)	(4,583)	(3,999)
Options exercised (in shares)	(36,648)	(122,128)	(47,504)	(599,662)
Options outstanding, end of period (in shares)	433,026	245,423	376,769	471,676
Options exercisable, end of period (in shares)	364,403	245,423	376,769	251,049
Weighted-Average Exercise Price
Options outstanding, beginning of period (in dollars per share)	$ 77.96	$ 79.86	$ 78.37	$ 74.38
Options forfeited (in dollars per share)	85.04		90.28	81.40
Options expired (in dollars per share)		83.55	84.67	86.59
Options exercised (in dollars per share)	72.69	75.28	64.90	71.38
Options outstanding, end of period (in dollars per share)	78.37	82.00	79.86	77.96
Options exercisable, end of period (in dollars per share)	$ 76.13	$ 82.00	$ 79.86	$ 74.73