Condensed Consolidated Statements of Changes in Capital (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Increase (Decrease) in Stockholders' Equity:
Beginning balance	$ 1,275,250	$ 1,132,428	$ 1,201,749	$ 1,111,980
Common shares issued for compensation				570
Share-based compensation	1,841	1,713	6,054	3,993
Net effect of restricted and performance shares issued		(285)	(2,646)	(1,273)
Other comprehensive income (loss)	25,715	80,929	81,550	79,381
Net income (loss)	1,446	16,441	17,545	36,575
Ending balance	1,304,252	1,231,226	1,304,252	1,231,226
Common Stock
Increase (Decrease) in Stockholders' Equity:
Beginning balance	640	637	638	636
Common shares issued for compensation				0
Net effect of restricted and performance shares issued		1	2	2
Ending balance	640	638	640	638
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity:
Beginning balance	410,036	405,415	408,471	403,554
Common shares issued for compensation				570
Share-based compensation	1,841	1,713	6,054	3,993
Net effect of restricted and performance shares issued		(286)	(2,648)	(1,275)
Ending balance	411,877	406,842	411,877	406,842
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity:
Beginning balance	(116,556)	(206,037)	(172,391)	(204,489)
Other comprehensive income (loss)	25,715	80,929	81,550	79,381
Ending balance	(90,841)	(125,108)	(90,841)	(125,108)
Retained Earnings
Increase (Decrease) in Stockholders' Equity:
Beginning balance	1,450,824	1,402,115	1,434,725	1,381,981
Net income (loss)	1,446	16,441	17,545	36,575
Ending balance	1,452,270	1,418,556	1,452,270	1,418,556
Treasury Stock
Increase (Decrease) in Stockholders' Equity:
Beginning balance	(469,694)	(469,702)	(469,694)	(469,702)
Ending balance	$ (469,694)	$ (469,702)	$ (469,694)	$ (469,702)