Mining Properties (Tables)

9 Months Ended

Sep. 30, 2015

Mining Properties [Abstract]

Mining Properties

Mining properties consist of the following (in thousands):

September 30, 2015	Palmarejo			Rochester			Kensington			Wharf			San Bartolomé			La Preciosa		Joaquin		Coeur Capital			Total
Mine development	$	159,604		$	156,097		$	231,230		$	32,580		$	49,491		$	—	$	—	$	—		$	629,002
Accumulated amortization	(129,872		)	(123,085		)	(124,090		)	(3,676		)	(29,389		)	—		—					(410,112		)
	29,732			33,012			107,140			28,904			20,102			—		—		—			218,890
Mineral interests	822,036			—			—			49,601			17,560			49,085		10,000		81,461			1,029,743
Accumulated amortization	(345,199		)	—			—			(8,240		)	(11,157		)	—		—		(32,447		)	(397,043		)
	476,837			—			—			41,361			6,403			49,085		10,000		49,014			632,700
Mining properties, net	$	506,569		$	33,012		$	107,140		$	70,265		$	26,505		$	49,085	$	10,000	$	49,014		$	851,590

December 31, 2014	Palmarejo			Rochester			Kensington			San Bartolomé			La Preciosa		Joaquin		Coeur Capital			Total
Mine development	$	137,821		$	153,535		$	217,138		$	49,305		$	—	$	—	$	—		$	557,799
Accumulated amortization	(121,906		)	(113,533		)	(106,865		)	(26,106		)	—		—		—			(368,410		)
	15,915			40,002			110,273			23,199			—		—		—			189,389
Mineral interests	521,349			—			—			17,560			49,059		10,000		81,461			679,429
Accumulated amortization	(332,032		)	—			—			(10,143		)	—		—		(25,451		)	(367,626		)
	189,317			—			—			7,417			49,059		10,000		56,010			311,803
Mining properties, net	$	205,232		$	40,002		$	110,273		$	30,616		$	49,059	$	10,000	$	56,010		$	501,192