Debt And Royalty Obligation (Tables)

12 Months Ended

Dec. 31, 2011

Debt and Royalty Obligation [Abstract]

Debt and royalty obligations

	December 31, 2011				December 31, 2010
	Current		Non-Current		Current		Non-Current
3.25% Convertible Senior Notes due March 2028	$	—	$	45,545	$	—	$	43,220
1.25% Convertible Senior Notes paid in 2011		—		—		1,859		—
Senior Term Notes paid in 2011		—		—		15,000		15,000
Kensington Term Facility		15,398		60,425		25,908		48,322
Capital lease obligations		17,119		9,891		15,759		23,483
Bank loans		85		—		4,791		42
	$	32,602	$	115,861	$	63,317	$	130,067

Interest expenses incurred for various debt instruments

	Years Ended December 31,
	2011			2010			2009
3.25% Convertible Senior Notes due March 2028	$	1,581		$	2,394		$	5,875
1.25% Convertible Senior Notes due January 2024		1			28			1,454
Senior Term Notes due December 2012		1,381			5,074			—
Senior Secured Floating Rate Convertible Notes due 2012		—			—			887
Kensington Term Facility		4,383			2,017			85
Capital lease obligations		1,620			2,122			1,149
Other debt obligations		1,379			1,423			818
Gold Lease Facility		—			677			1,522
Accretion of Franco Nevada royalty obligation		22,230			20,502			19,054
Amortization of debt issuance costs		2,050			4,047			989
Accretion of debt discount		2,324			2,543			9,094
Capitalized interest		(2,175	)		(9,885	)		(22,825	)
Total interest expense	$	34,774		$	30,942		$	18,102

Minimum Debt Repayments

December 31,	Minimum Debt Repayments (1)
2012	$	74,089
2013		84,571
2014		76,944
2015		79,412
2016		62,877
Thereafter		49,674
		427,567
Debt discount		(74,607	)
Present value of net scheduled capital lease payments (See Note 10)		27,011
	$	379,971