Operations By Segment And Geographic Area (Tables)

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Operations by segment and geographic area

	Africa
As of and for the three months ended March 31,	Bogoso/ Prestea			Wassa/ HBB			Other			South America			Corporate			Total
2013
Gold revenues	$	57,953		$	74,957		$	—		$	—		$	—		$	132,910
Mine operating expenses	64,092			35,973			—			—			—			100,065
Operating costs from/(to) metal inventory	58			1,121			—			—			—			1,179
Royalties	2,900			3,753			—			—			—			6,653
Mining related depreciation and amortization	8,265			11,876			—			—			—			20,141
Accretion of asset retirement obligations	378			256			—			—			—			634
Cost of sales	75,693			52,979			—			—			—			128,672
Mine operating margin	(17,740		)	21,978			—			—			—			4,238
Income tax expense	—			7,133			—			—			—			7,133
Net income/(loss) attributable to Golden Star	(18,306		)	12,535			(388		)	(136		)	(264		)	(6,559		)
Capital expenditures	7,707			9,952			—			—			—			17,659
Total assets	433,214			221,683			1,831			208			47,742			704,678
2012
Gold revenues	$	69,595		$	61,425		$	—		$	—		$	—		$	131,020
Mine operating expenses	55,129			39,155			—			—			—			94,284
Operating costs from/(to) metal inventory	(551		)	(2,899		)	—			—			—			(3,450		)
Royalties	3,483			3,082			—			—			—			6,565
Mining related depreciation and amortization	8,149			10,894			—			—			—			19,043
Accretion of asset retirement obligations	381			322			—			—			—			703
Cost of sales	66,591			50,554			—			—			—			117,145
Mine operating margin	3,004			10,871			—			—			—			13,875
Income tax expense	—			12,531			—			—			—			12,531
Net income/(loss) attributable to Golden Star	5,472			852			(1,111		)	(122		)	4,022			9,113
Capital expenditures	14,957			9,708			—			—			—			24,665
Total assets	422,912			242,007			1,189			855			85,103			752,066