Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Series B Preferred Stock	Common Stock	Capital Surplus	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss), net	Treasury Stock
Balance at Dec. 31, 2019	$ 1,696,534	$ 39	$ 132,292	$ 1,973,700	$ (349,220)	$ (37,310)	$ (22,967)
Net loss	(9,457)	0		0	(9,457)	0	0
Stock issued to directors	1,486	0	97	1,389	0	0	0
Stock issued for 401(k) match	4,624	0	397	4,227	0	0	0
Restricted stock units granted	4,975	0		4,975	0	0	0
Common stock and Series B Preferred stock dividends declared	(9,151)	0	0	0	(9,151)	0	0
Common stock issued for employee incentive compensation	3,830	0	700	4,396		0	(1,266)
Common stock issued to pension plans	16,032	0	717	15,315		0	0
Restricted stock unit distributions	(1,479)	0	426	(426)	0	0	(1,479)
Other comprehensive income	4,421	0	0	0		4,421	0
Treasury shares issued to charitable foundation	(1,970)	0	0	0	246	0	(2,216)
Balance at Dec. 31, 2020	1,713,785	39	134,629	2,003,576	(368,074)	(32,889)	(23,496)
Net loss	35,095	0	0	0	35,095	0	0
Stock issued to directors	1,844	0	52	1,792	0	0	0
Stock issued for 401(k) match	4,339	0	172	4,167	0	0	0
Restricted stock units granted	4,238	0	0	4,238	0	0	0
Common stock and Series B Preferred stock dividends declared	(20,672)	0	0	0	20,672	0	0
Common stock issued to pension plans	22,250	0	1,125	21,125	0	0	0
Restricted stock unit distributions	(4,525)	0	413	(413)	0	0	(4,525)
Other comprehensive income	4,433	0	0	0	0	4,433	0
Balance at Dec. 31, 2021	1,760,787	39	136,391	2,034,485	(353,651)	(28,456)	(28,021)
Net loss	(37,348)	0	0	0	(37,348)	0	0
Stock issued to directors	417	0	25	392	0	0	0
Stock issued for 401(k) match	4,470		245	4,225	0	0	0
Restricted stock units granted	5,595	0	0	5,595	0	0	0
Common stock and Series B Preferred stock dividends declared	(12,932)	0	0	0	12,932	0	0
Common stock issued to pension plans	9,740	0	548	9,192	0	0	0
Restricted stock unit distributions	(3,677)	0	447	(447)			(3,677)
Common stock issued to Alexco Resource Corp. shareholders	68,733		4,498	64,235
Common stock issued to settle the acquired silver stream	135,000		8,700	126,300
Common stock issued upon conversion of Series B Preferred stock	0	0	0	0	0	0	0
Common stock issued under ATM program	17,278		965	16,313
Other comprehensive income	30,904	0	0	0	0	30,904	0
Balance at Dec. 31, 2022	$ 1,978,967	$ 39	$ 151,819	$ 2,260,290	$ (403,931)	$ (2,448)	$ (31,698)