Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2011

Property, Plant and Equipment [Abstract]

Property, plant and equipment

	December 31, 2011			December 31, 2010
Land	$	1,432		$	713
Building improvements		520,137			499,502
Machinery and equipment		246,584			236,416
Capitalized leases for machinery, equipment, and buildings		76,244			72,326
Property and equipment		844,397			808,957
Accumulated depreciation and amortization		(235,528	)		(164,414	)
		608,869			644,543
Construction in progress		78,807			23,558
	$	687,676		$	668,101

Capital Expenditures

	Years Ended December 31,
	2011		2010		2009
Rochester	$	27,217	$	2,349	$	310
Martha		3,412		100		1,575
San Bartolomé		17,731		6,159		11,091
Kensington		34,013		92,730		41,289
Palmarejo		36,990		54,226		162,697
Other		625		430		1,273
Net asset additions	$	119,988	$	155,994	$	218,235

Minimum future lease payments under capital and operating leases

Year Ending December 31,	Capital Leases			Operating Leases
2012	$	18,322		$	5,099
2013		7,811			4,076
2014		2,223			3,963
2015		129			3,795
2016		115			682
2017 and thereafter		—			—
Total minimum payments due		28,600		$	17,615
Less: Amount representing interest		(1,590	)
Present value of net minimum lease payments		27,010
Less: Current maturities		(17,119	)
Non-current portion	$	9,891