Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Shareholders' Equity [Abstract]

Schedule Of Preferred Stock Outstanding

		Earliest Potential	Dividend	Shares	Amount
Series	Issuance Date	Redemption Date	Rate	Outstanding	(in thousands)
Series W	October, 2016	October, 2021	5.200%	7,590	$	189,750
Series X	September, 2017	September, 2022	5.250%	9,200		230,000
Series Y	December, 2017	December, 2022	5.200%	8,000		200,000
Series Z	November, 2019	November, 2024	4.875%	13,000		325,000
Total				37,790	$	944,750