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Shareholders' Equity (Narrative) (Details) - $ / shares	Apr. 19, 2022	Mar. 31, 2022	Dec. 31, 2021
Class Of Stock [Line Items]
Preferred stock, shares authorized		12,500,000
Subsequent Event [Member]
Class Of Stock [Line Items]
Dividends payable, date declared	Apr. 19, 2022
Dividends payable, date to be paid	May 20, 2022
Dividends payable, date of record	May 10, 2022
Series B [Member]
Class Of Stock [Line Items]
Preferred stock, shares authorized		1,450,000	1,450,000
Series B [Member] | Subsequent Event [Member]
Class Of Stock [Line Items]
Preferred stock dividends declared	$ 0.453125
Series C [Member]
Class Of Stock [Line Items]
Preferred stock, shares authorized		6,450,000	6,450,000
Series C [Member] | Subsequent Event [Member]
Class Of Stock [Line Items]
Preferred stock dividends declared	$ 0.406250

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-Topic 230
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