Shareholders' Equity Narrative (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	Jun. 15, 2022	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Feb. 14, 2022
Class of Stock [Line Items]
Net proceeds from issuance of common shares			$ 259,597	$ 87,286
5.417% Series 1 Cumulative Convertible Preferred Shares, (stated at liquidation preference $25 per share), 392,878 and 399,896 shares issued and outstanding, respectively
Class of Stock [Line Items]
Preferred shares converted	7,018
Common Shares
Class of Stock [Line Items]
Common shares issued upon conversion	1,675
At The Market Equity Program
Class of Stock [Line Items]
Aggregate offering price of common share					$ 500,000
Remaining capacity to issue		$ 500,000	$ 500,000
Forward Sales Contracts
Class of Stock [Line Items]
Shares issued		1,473,904	2,203,655
Net proceeds from issuance of common shares		$ 176,700	$ 259,400