Share-Based Compensation Plans - Performance Share Units (Details) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Performance Shares
Payout Levels (in units):
Threshold Award (in shares)	0	0	61,076	59,698
Target Award (in shares)	132,537	106,116	122,152	119,395
Outstanding Award (in shares)	265,074	212,232	244,304	238,790
Payout Achieved Over Performance Period			243,526	0	[1]
Performance Shares 1
Payout Levels (in units):
Threshold Award (in shares)		0	39,882
Target Award (in shares)		28,275	79,763
Outstanding Award (in shares)		84,826	159,526
Shares Issued (in shares)	159,526
Payout Achieved Over Performance Period			159,526

[1] (2) In the fourth quarter of 2022, the Committee exercised its discretion in respect of the payout of the 2020 grant. On the basis that an additional special one-time grant had been awarded in 2021 to supplement the 2020 grant, the Committee determined that the 2020 grant would have a zero payout.