Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 222,083	$ 212,175
Accounts receivable:
Trade	21,033	17,672
Other, net	8,978	20,893
Inventories:
Concentrates, doré, and stockpiled ore	29,569	27,740
Materials and supplies	21,385	21,097
Current deferred income taxes	37,898	35,734
Other current assets	5,934	8,324
Total current assets	346,880	343,635
Non-current investments	7,466	7,019
Non-current restricted cash and investments	883	5,217
Properties, plants, equipment and mineral interests, net	1,818,632	1,791,601
Non-current deferred income taxes	77,689	78,780
Other non-current assets and deferred charges	3,577	5,867
Total assets	2,255,127	2,232,119
Current liabilities:
Accounts payable and accrued liabilities	39,414	51,152
Accrued payroll and related benefits	22,533	18,769
Accrued taxes	10,442	7,881
Current portion of capital leases	8,410	8,471
Other current liabilities	8,057	6,781
Current portion of accrued reclamation and closure costs	58,190	58,425
Total current liabilities	147,046	151,479
Capital leases	12,061	14,332
Accrued reclamation and closure costs	56,968	46,766
Long-term debt	496,354	490,726
Non-current deferred tax liability	165,442	164,861
Other non-current liabilities	35,873	37,536
Total liabilities	913,744	905,700
Commitments and contingencies
Preferred stock, 5,000,000 shares authorized:
Series B preferred stock, $0.25 par value, 157,816 shares issued and outstanding, liquidation preference — $7,891	39	39
Common stock, $0.25 par value, authorized 500,000,000 shares; issued and outstanding 2014 — 348,689,981 shares and 2013 — 342,663,381 shares	87,516	85,896
Capital surplus	1,447,333	1,426,845
Accumulated deficit	(159,748)	(154,982)
Accumulated other comprehensive loss	(27,137)	(26,299)
Less treasury stock, at cost; 2014 — 1,466,611 shares and 2013 — 921,721 shares issued and held in treasury	(6,620)	(5,080)
Total shareholders’ equity	1,341,383	1,326,419
Total liabilities and shareholders’ equity	$ 2,255,127	$ 2,232,119