Mining Properties (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Mining Properties
Operational mining properties:	$ 1,248,734	$ 997,307
Accumulated depletion	(710,132)	(650,831)
Operational mining properties, net	538,602	346,476
Mineral interest	905,998	946,226
Accumulated depletion	(591,801)	(575,911)
Mineral interest, net	314,197	370,315
Mineral Properties, Net	852,799	716,790
Palmarejo [Member]
Mining Properties
Operational mining properties:	307,698	280,184
Accumulated depletion	(211,187)	(194,898)
Operational mining properties, net	96,511	85,286
Mineral interest	629,303	629,303
Accumulated depletion	(532,155)	(518,866)
Mineral interest, net	97,148	110,437
Mineral Properties, Net	193,659	195,723
Rochester [Member]
Mining Properties
Operational mining properties:	437,833	270,648
Accumulated depletion	(158,805)	(157,526)
Operational mining properties, net	279,028	113,122
Mineral interest	19,098	18,541
Accumulated depletion	0	0
Mineral interest, net	19,098	18,541
Mineral Properties, Net	298,126	131,663
Kensington
Mining Properties
Operational mining properties:	382,492	360,201
Accumulated depletion	(302,582)	(264,014)
Operational mining properties, net	79,910	96,187
Mineral interest	0	0
Accumulated depletion	0	0
Mineral interest, net	0	0
Mineral Properties, Net	79,910	96,187
Wharf [Member]
Mining Properties
Operational mining properties:	49,045	33,578
Accumulated depletion	(24,358)	(22,547)
Operational mining properties, net	24,687	11,031
Mineral interest	48,062	48,062
Accumulated depletion	(34,818)	(32,217)
Mineral interest, net	13,244	15,845
Mineral Properties, Net	37,931	26,876
Silvertip [Member]
Mining Properties
Operational mining properties:	67,805	48,589
Accumulated depletion	(11,685)	(10,747)
Operational mining properties, net	56,120	37,842
Mineral interest	114,036	105,736
Accumulated depletion	(24,828)	(24,828)
Mineral interest, net	89,208	80,908
Mineral Properties, Net	145,328	118,750
Sterling [Member]
Mining Properties
Operational mining properties:	3,861	4,107
Accumulated depletion	(1,515)	(1,099)
Operational mining properties, net	2,346	3,008
Mineral interest	95,499	95,499
Accumulated depletion	0	0
Mineral interest, net	95,499	95,499
Mineral Properties, Net	97,845	98,507
La Preciosa [Member]
Mining Properties
Operational mining properties:		0
Accumulated depletion		0
Operational mining properties, net		0
Mineral interest		49,085
Accumulated depletion		0
Mineral interest, net		49,085
Mineral Properties, Net		49,085
Other Mining Properties [Member]
Mining Properties
Operational mining properties:	0	0
Accumulated depletion	0	0
Operational mining properties, net	0	0
Mineral interest	0
Accumulated depletion	0
Mineral interest, net	0	0
Mineral Properties, Net	$ 0	$ 0