Share-Based Compensation Arrangements (Performance Share Unit Awards Outstanding) (Details) - Performance Share Units [Member]	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards, shares vesting	144,938
2022 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards granted, grant date fair value | $ / shares	$ 59.31
Performance share awards, shares vesting percentages	130.00%
Performance share awards, shares vesting	39,676
2021 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards granted, grant date fair value | $ / shares	$ 46.15
Performance share awards, shares vesting percentages	120.00%
Performance share awards, shares vesting	43,848
2020 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards granted, grant date fair value | $ / shares	$ 34.22
Performance share awards, shares vesting percentages	120.00%
Performance share awards, shares vesting	56,256
2018 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share awards granted, grant date fair value | $ / shares	$ 54.25
Performance share awards, shares vesting percentages	124.00%
Performance share awards, shares vesting	5,158