Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common stock	Retained earnings (deficit)	Accumulated other comprehensive income (loss)
Beginning balance (in shares) at Dec. 31, 2021		109,312,000
Beginning balance at Dec. 31, 2021	$ 2,390,884	$ 1,685,496	$ 757,921	$ (52,533)
Increase (decrease) in stockholders' equity
Net income (loss) for common stock	241,138		241,138
Other comprehensive income (loss), net of taxes	(283,495)			(283,495)
Issuance of common stock:
Share-based plans (in shares)		159,000
Share-based plans	5,831	$ 5,831
Share-based expenses and other, net	1,370	$ 1,370
Common stock dividends	(153,229)		(153,229)
Ending balance (in shares) at Dec. 31, 2022		109,471,000
Ending balance at Dec. 31, 2022	2,202,499	$ 1,692,697	845,830	(336,028)
Increase (decrease) in stockholders' equity
Net income (loss) for common stock	199,238		199,238
Other comprehensive income (loss), net of taxes	46,678			46,678
Issuance of common stock:
Dividend reinvestment and stock purchase plan (in shares)		537,000
Dividend reinvestment and stock purchase plan	6,612	$ 6,612
Share-based plans (in shares)		144,000
Share-based plans	6,371	$ 6,371
Share-based expenses and other, net	1,791	$ 1,791
Common stock dividends	$ (118,348)		(118,348)
Ending balance (in shares) at Dec. 31, 2023	110,151,798	110,152,000
Ending balance at Dec. 31, 2023	$ 2,344,841	$ 1,707,471	926,720	(289,350)
Increase (decrease) in stockholders' equity
Net income (loss) for common stock	(1,426,009)		(1,426,009)
Other comprehensive income (loss), net of taxes	3,184			3,184
Issuance of common stock:
Common stock offering (in shares)		62,162,000
Common stock offering	575,000	$ 575,000
Share-based plans (in shares)		152,000
Share-based plans	8,018	$ 8,018
Common stock offering expenses	(18,621)	(18,621)
Share-based expenses and other, net	(7,324)	$ (7,324)
Discontinued operations	$ 0		(289,627)	289,627
Ending balance (in shares) at Dec. 31, 2024	172,465,608	172,466,000
Ending balance at Dec. 31, 2024	$ 1,479,089	$ 2,264,544	$ (788,916)	$ 3,461