Share-Based Payment Plans - Summary of options activity (Details) - Stock Options - $ / shares	3 Months Ended		6 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2022
Options
Outstanding at beginning of year			649,600		649,600
Granted	0	0	0	0	0
Exercised					(12,332)
Forfeited					(14,085)
Outstanding at period end					623,183
Vested or expected to vest					623,183
Exercisable at period end					521,699
Weighted Average Exercise Price
Outstanding at beginning of year			$ 16.66		$ 16.66
Granted					0
Exercised					22.79
Forfeited					25.20
Outstanding at period end					16.35
Vested or expected to vest					16.35
Exercisable at period end					$ 14.24
Weighted Average Remaining Contractual Life (Years), outstanding at period end					4 years 8 months 12 days
Weighted Average Remaining Contractual Life (Years), vested or expected to vest					4 years 8 months 12 days
Weighted Average Remaining Contractual Life (Years), exercisable at period end					3 years 10 months 24 days