CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Preferred Shares [Member]	Common Shares [Member]	Additional Paid-in Capital [Member]	Accumulated Distributions in Excess of Net Income [Member]	Deferred Compensation Obligation [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Treasury Stock at Cost [Member]
Beginning Balance at Dec. 31, 2023	$ 2,175,543	$ 175,000	$ 5,359	$ 5,990,982	$ (3,934,736)	$ 5,167	$ 6,121	$ (72,350)
Stock-based compensation, net	(488)	0	0	(3,238)	0	(115)	0	2,865
Dividends declared-common shares	(27,372)	0	0	0	(27,372)	0	0	0
Dividends declared-preferred shares	(2,789)	0	0	0	(2,789)	0	0	0
Comprehensive income (loss)	(20,950)	0	0	0	(23,552)	0	2,602	0
Ending Balance at Mar. 31, 2024	2,123,944	175,000	5,359	5,987,744	(3,988,449)	5,052	8,723	(69,485)
Beginning Balance at Dec. 31, 2023	2,175,543	175,000	5,359	5,990,982	(3,934,736)	5,167	6,121	(72,350)
Comprehensive income (loss)	217,144
Ending Balance at Jun. 30, 2024	2,334,099	175,000	5,359	5,989,741	(3,780,374)	4,937	8,572	(69,136)
Beginning Balance at Mar. 31, 2024	2,123,944	175,000	5,359	5,987,744	(3,988,449)	5,052	8,723	(69,485)
Stock-based compensation, net	2,231	0	0	1,997	0	(115)	0	349
Dividends declared-common shares	(27,381)	0	0	0	(27,381)	0	0	0
Dividends declared-preferred shares	(2,789)	0	0	0	(2,789)	0	0	0
Comprehensive income (loss)	238,094	0	0	0	238,245	0	(151)	0
Ending Balance at Jun. 30, 2024	2,334,099	$ 175,000	5,359	5,989,741	(3,780,374)	4,937	8,572	(69,136)
Beginning Balance at Dec. 31, 2024	516,744		5,247	3,981,597	(3,473,458)	8,041	5,472	(10,155)
Stock-based compensation, net	367		0	(701)	0	(45)	0	1,113
Comprehensive income (loss)	2,506		0	0	3,085	0	(579)	0
Ending Balance at Mar. 31, 2025	519,617		5,247	3,980,896	(3,470,373)	7,996	4,893	(9,042)
Beginning Balance at Dec. 31, 2024	516,744		5,247	3,981,597	(3,473,458)	8,041	5,472	(10,155)
Comprehensive income (loss)	48,309
Ending Balance at Jun. 30, 2025	486,682		5,247	3,981,212	(3,502,923)	0	4,192	(1,046)
Beginning Balance at Mar. 31, 2025	519,617		5,247	3,980,896	(3,470,373)	7,996	4,893	(9,042)
Stock-based compensation, net	316		0	316	0	0	0	0
Termination of deferred compensation plan	0		0	0	0	(7,996)	0	7,996
Dividends declared-common shares	(79,054)		0	0	(79,054)	0	0	0
Comprehensive income (loss)	45,803		0	0	46,504	0	(701)	0
Ending Balance at Jun. 30, 2025	$ 486,682		$ 5,247	$ 3,981,212	$ (3,502,923)	$ 0	$ 4,192	$ (1,046)