Earnings Per Share (Narrative) (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Series C Preferred Shares [Member]
Anitidlutive securities exluded from computation of earnings per share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,300	2,200	2,200
Preferred share dividend percentage	5.75%
Series E Preferred Shares [Member]
Anitidlutive securities exluded from computation of earnings per share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,700	1,700	1,700
Preferred share dividend percentage	9.00%
Stock Options [Member]
Anitidlutive securities exluded from computation of earnings per share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	96	89	117
Exercise price range, lower limit	$ 44.44	$ 44.44	$ 44.62
Exercise price range, upper limit	$ 76.63	$ 76.63	$ 76.63
Performance Shares
Anitidlutive securities exluded from computation of earnings per share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	99	56