CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive (Loss) Income	Cumulative Earnings	Cumulative Distributions to Stockholders
Beginning balance (in shares) at Dec. 31, 2021				114,892,309
Balance at beginning of period at Dec. 31, 2021		$ 1,386,087	$ 0	$ 1,149	$ 2,316,799	$ (8,927)	$ 1,316,890	$ (2,239,824)
Increase (Decrease) in Stockholders' Equity
Net Income		30,915					30,915
Other comprehensive income (loss)		(17,547)				(17,547)
Employee stock purchase and incentive plans (in shares)				164,065
Employee stock purchase and incentive plans		(1,046)		$ 2	(1,048)
Issuance of stock (in shares)				5,232,869
Issuance of stock		67,475		$ 52	67,423
Non-cash equity award compensation		8,170			8,170
Common dividends declared	[1]	(28,788)						(28,788)
Ending balance (in shares) at Mar. 31, 2022				120,289,243
Balance at End of Period at Mar. 31, 2022		1,445,266	0	$ 1,203	2,391,344	(26,474)	1,347,805	(2,268,612)
Beginning balance (in shares) at Dec. 31, 2022				113,484,675
Balance at beginning of period at Dec. 31, 2022		1,083,985	0	$ 1,135	2,349,845	(68,868)	1,153,370	(2,351,497)
Increase (Decrease) in Stockholders' Equity
Net Income		4,620					4,620
Other comprehensive income (loss)		5,832				5,832
Employee stock purchase and incentive plans (in shares)				379,781
Employee stock purchase and incentive plans		(1,044)		$ 4	(1,048)
Issuance of stock		66,923	66,923
Non-cash equity award compensation		6,342			6,342
Preferred dividends declared ($0.60417 per share)		(1,419)					(1,419)
Common dividends declared	[1]	(27,559)						(27,559)
Ending balance (in shares) at Mar. 31, 2023				113,864,456
Balance at End of Period at Mar. 31, 2023		$ 1,137,680	$ 66,923	$ 1,139	$ 2,355,139	$ (63,036)	$ 1,156,571	$ (2,379,056)

[1] Includes dividends and dividend equivalents declared on common stock and stock-based awards