Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Series A Preferred Stock Preferred Stock	Common Stock	Additional Paid-In-Capital Adjustment	Additional Paid-In-Capital	Dividends in Excess of Earnings Adjustment	Dividends in Excess of Earnings	Adjustment	Total
Balances at beginning of period at Dec. 31, 2020	$ 14,009,000	$ 24,000		$ 1,559,059,000		$ (48,120,000)		$ 1,524,972,000
Balances at beginning of period (in shares) at Dec. 31, 2020		23,936,928
Net income						85,360,000		85,360,000
Issuance of unvested restricted stock, net of forfeitures				(3,384,000)				(3,384,000)
Issuance of unvested restricted stock, net of forfeitures (in shares)		(8,624)
Preferred stock dividend						(1,014,000)		(1,014,000)
Common stock dividend						(101,227,000)		(101,227,000)
Stock-based compensation				6,424,000				6,424,000
Balances at end of period at Sep. 30, 2021	14,009,000	$ 24,000		1,562,099,000		(65,001,000)		1,511,131,000
Balances at end of period (in shares) at Sep. 30, 2021		23,928,304
Balances at beginning of period at Jun. 30, 2021	14,009,000	$ 24,000		1,559,908,000		(58,774,000)		1,515,167,000
Balances at beginning of period (in shares) at Jun. 30, 2021		23,928,304
Net income						30,094,000		30,094,000
Preferred stock dividend						(338,000)		(338,000)
Common stock dividend						(35,983,000)		(35,983,000)
Stock-based compensation				2,191,000				2,191,000
Balances at end of period at Sep. 30, 2021	14,009,000	$ 24,000		1,562,099,000		(65,001,000)		1,511,131,000
Balances at end of period (in shares) at Sep. 30, 2021		23,928,304
Balances at beginning of period at Dec. 31, 2021	14,009,000	$ 26,000	$ (1,340,000)	1,672,882,000	$ 728,000	(75,218,000)	$ (612,000)	1,611,699,000
Balances at beginning of period (in shares) at Dec. 31, 2021		25,612,541
Net income						112,880,000		112,880,000
Issuance of unvested restricted stock, net of forfeitures				(2,441,000)				(2,441,000)
Issuance of unvested restricted stock, net of forfeitures (in shares)		15,174
Exchange of Exchangeable Senior Notes				26,682,000				26,682,000
Exchange of Exchangeable Senior Notes (in shares)		413,166
Net proceeds from sale of common stock		$ 2,000		351,958,000				351,960,000
Net proceeds from sale of common stock (in shares)		1,932,813
Preferred stock dividend						(1,014,000)		(1,014,000)
Common stock dividend						(145,434,000)		(145,434,000)
Stock-based compensation				13,195,000				13,195,000
Balances at end of period at Sep. 30, 2022	14,009,000	$ 28,000		2,060,936,000		(108,058,000)		1,966,915,000
Balances at end of period (in shares) at Sep. 30, 2022		27,973,694
Balances at beginning of period at Jun. 30, 2022	14,009,000	$ 28,000		2,056,568,000		(94,833,000)		1,975,772,000
Balances at beginning of period (in shares) at Jun. 30, 2022		27,973,429
Net income						37,616,000		37,616,000
Exchange of Exchangeable Senior Notes				17,000				17,000
Exchange of Exchangeable Senior Notes (in shares)		265
Payment of common stock offering costs				(28,000)				(28,000)
Preferred stock dividend						(338,000)		(338,000)
Common stock dividend						(50,503,000)		(50,503,000)
Stock-based compensation				4,379,000				4,379,000
Balances at end of period at Sep. 30, 2022	$ 14,009,000	$ 28,000		$ 2,060,936,000		$ (108,058,000)		$ 1,966,915,000
Balances at end of period (in shares) at Sep. 30, 2022		27,973,694