Note 16 - Guarantor Subsidiaries (Tables)

12 Months Ended

Dec. 31, 2015

Guarantor Subsidiaries [Abstract]

Condensed Balance Sheet [Table Text Block]

	As of December 31, 2015
	Parent		Guarantors			Non-Guarantors			Eliminations			Consolidated
	(in thousands)
Assets
Cash and cash equivalents	$	94,167	$	42,692		$	18,350		$	—		$	155,209
Other current assets		15,972		58,453			32,273			7,626			114,324
Properties, plants, and equipment - net		2,281		1,147,770			746,760			—			1,896,811
Intercompany receivable (payable)		540,665		(301,291	)		(332,553	)		93,179			—
Investments in subsidiaries		1,252,191		—			—			(1,252,191	)		—
Other non-current assets		2,200		165,080			1,781			(113,480	)		55,581
Total assets	$	1,907,476	$	1,112,704		$	466,611		$	(1,264,866	)	$	2,221,925
Liabilities and Stockholders' Equity
Current liabilities	$	21,087	$	84,559		$	30,636		$	(9,198	)	$	127,084
Long-term debt		499,729		6,128			3,183			—			509,040
Non-current portion of accrued reclamation		—		45,494			29,055			—			74,549
Non-current deferred tax liability		—		3,264			119,836			(3,477	)		119,623
Other non-current liabilities		47,734		5,834			(865	)		—			52,703
Stockholders' equity		1,338,926		967,425			284,766			(1,252,191	)		1,338,926
Total liabilities and stockholders' equity	$	1,907,476	$	1,112,704		$	466,611		$	(1,264,866	)	$	2,221,925

	As of December 31, 2014
	Parent		Guarantors			Non-Guarantors			Eliminations			Consolidated
	(in thousands)
Assets
Cash and cash equivalents	$	146,885	$	33,824		$	28,956		$	—		$	209,665
Other current assets		7,115		48,981			23,165			27,433			106,694
Properties, plants, and equipment - net		1,572		1,079,658			750,334			—			1,831,564
Intercompany receivable (payable)		470,306		(123,671	)		(392,880	)		46,245			—
Investments in subsidiaries		1,317,969		—			—			(1,317,969	)		—
Other non-current assets		8,644		189,014			4,620			(88,137	)		114,141
Total assets	$	1,952,491	$	1,227,806		$	414,195		$	(1,332,428	)	$	2,262,064
Liabilities and Stockholders' Equity
Current liabilities	$	14,143	$	54,918		$	21,996		$	(72	)	$	90,985
Long-term debt		498,479		10,597			3,053			—			512,129
Non-current portion of accrued reclamation		—		43,314			12,305			—			55,619
Non-current deferred tax liability		—		14,387			153,300			(14,387	)		153,300
Other non-current liabilities		42,895		11,126			(964	)		—			53,057
Stockholders' equity		1,396,974		1,093,464			224,505			(1,317,969	)		1,396,974
Total liabilities and stockholders' equity	$	1,952,491	$	1,227,806		$	414,195		$	(1,332,428	)	$	2,262,064

Condensed Income Statement [Table Text Block]

	Year Ended December 31, 2015
	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	(in thousands)
Revenues	$	6,194		$	287,941		$	149,432		$	—		$	443,567
Cost of sales		—			(192,683	)		(100,884	)		—			(293,567	)
Depreciation, depletion, amortization		—			(67,815	)		(43,674	)		—			(111,489	)
General and administrative		(17,920	)		(14,508	)		(1,773	)		—			(34,201	)
Exploration and pre-development		(627	)		(7,177	)		(14,154	)		—			(21,958	)
Gain on derivative contracts		8,252			—			—			—			8,252
Acquisition costs		(517	)		(1,645	)		—			—			(2,162	)
Equity in earnings of subsidiaries		49,565			—			—			(49,565	)		—
Other (expense) income		(131,915	)		22,537			36,090			54,188			(19,100	)
(Loss) income before income taxes		(86,968	)		26,650			25,037			4,623			(30,658	)
(Provision) benefit from income taxes		—			(7,251	)		5,129			(54,188	)		(56,310	)
Net (loss) income		(86,968	)		19,399			30,166			(49,565	)		(86,968	)
Preferred stock dividends		(552	)		—			—			—			(552	)
(Loss) income applicable to common stockholders		(87,520	)		19,399			30,166			(49,565	)		(87,520	)
Net (loss) income		(86,968	)		19,399			30,166			(49,565	)		(86,968	)
Changes in comprehensive (loss) income		(600	)		(467	)		259			208			(600	)
Comprehensive (loss) income	$	(87,568	)	$	18,932		$	30,425		$	(49,357	)	$	(87,568	)

	Year Ended December 31, 2014
	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	(in thousands)
Revenues	$	1,473		$	333,460		$	165,848		$	—		$	500,781
Cost of sales		—			(194,600	)		(109,846	)		—			(304,446	)
Depreciation, depletion, amortization		—			(72,937	)		(38,197	)		—			(111,134	)
General and administrative		(17,667	)		(12,694	)		(1,177	)		—			(31,538	)
Exploration and pre-development		(252	)		(7,088	)		(12,327	)		—			(19,667	)
Loss on derivative contracts		9,134			—			—			—			9,134
Closed operations		—			—			—			—			—
Equity in earnings of subsidiaries		72,407			—			—			(72,407	)		—
Other (expense) income		(47,271	)		29,753			3,267			(16,295	)		(30,546	)
Income (loss) before income taxes		17,824			75,894			7,568			(88,702	)		12,584
(Provision) benefit from income taxes		—			(10,565	)		(490	)		16,295			5,240
Net income (loss)		17,824			65,329			7,078			(72,407	)		17,824
Preferred stock dividends		(552	)		—			—			—			(552	)
Income (loss) applicable to common stockholders		17,272			65,329			7,078			(72,407	)		17,272
Net income (loss)		17,824			65,329			7,078			(72,407	)		17,824
Changes in comprehensive income (loss)		(5,732	)		(1,329	)		1,152			177			(5,732	)
Comprehensive income (loss)	$	12,092		$	64,000		$	8,230		$	(72,230	)	$	12,092

	Year Ended December 31, 2013
	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	(in thousands)
Revenues	$	3,044		$	304,423		$	75,122		$	—		$	382,589
Cost of sales		—			(179,491	)		(55,825	)		—			(235,316	)
Depreciation, depletion, amortization		—			(63,097	)		(18,030	)		—			(81,127	)
General and administrative		(14,441	)		(13,174	)		(1,310	)		—			(28,925	)
Exploration and pre-development		(576	)		(24,990	)		(12,084	)		—			(37,650	)
Gain on derivative contracts		17,979			—			—			—			17,979
Closed operations		(14,444	)		—			(11,953	)		—			(26,397	)
Equity in earnings of subsidiaries		(15,807	)		—			—			15,807			—
Other (expense) income		(885	)		1,345			(9,616	)		(16,922	)		(26,078	)
(Loss) income before income taxes		(25,130	)		25,016			(33,696	)		(1,115	)		(34,925	)
(Provision) benefit from income taxes		—			(14,171	)		7,044			16,922			9,795
Net (loss) income		(25,130	)		10,845			(26,652	)		15,807			(25,130	)
Preferred stock dividends		(552	)		—			—			—			(552	)
(Loss) income applicable to common stockholders		(25,682	)		10,845			(26,652	)		15,807			(25,682	)
Net (loss) income		(25,130	)		10,845			(26,652	)		15,807			(25,130	)
Changes in comprehensive (loss) income		(2,381	)		(7	)		(4,587	)		4,594			(2,381	)
Comprehensive (loss) income	$	(27,511	)	$	10,838		$	(31,239	)	$	20,401		$	(27,511	)

Condensed Cash Flow Statement [Table Text Block]

	Year Ended December 31, 2015
	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	(in thousands)
Cash flows from operating activities	$	(56,036	)	$	101,254		$	63,856		$	(2,629	)	$	106,445
Cash flows from investing activities:
Additions to properties, plants, and equipment		(1,355	)		(97,684	)		(38,404	)		—			(137,443	)
Other investing activities, net		(748	)		637			(1,052	)		—			(1,163	)
Cash flows from financing activities:
Dividends paid to stockholders		(4,291	)		—			—			—			(4,291	)
Payments on debt		—			(12,405	)		1,554			—			(10,851	)
Other financing activity		9,712			17,066			(31,408	)		2,629			(2,001	)
Effect of exchange rate changes on cash		—			—			(5,152	)		—			(5,152	)
Changes in cash and cash equivalents		(52,718	)		8,868			(10,606	)		—			(54,456	)
Beginning cash and cash equivalents		146,885			33,824			28,956			—			209,665
Ending cash and cash equivalents	$	94,167		$	42,692		$	18,350		$	—		$	155,209

	Year Ended December 31, 2014
	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	(in thousands)
Cash flows from operating activities	$	38,270		$	61,900		$	58,277		$	(75,323	)	$	83,124
Cash flows from investing activities:														—
Additions to properties, plants, and equipment		(1,336	)		(68,859	)		(52,342	)		—			(122,537	)
Other investing activities, net		—			417			3,765			—			4,182
Cash flows from financing activities:														—
Dividends paid to stockholders		(4,099	)		—			—			—			(4,099	)
Payments on debt		—			(9,137	)		—			—			(9,137	)
Other financing activity		(12,221	)		9,494			(22,856	)		75,323			49,740
Effect of exchange rate changes on cash		—			—			(3,783	)		—			(3,783	)
Changes in cash and cash equivalents		20,614			(6,185	)		(16,939	)		—			(2,510	)
Beginning cash and cash equivalents		126,271			40,009			45,895			—			212,175
Ending cash and cash equivalents	$	146,885		$	33,824		$	28,956		$	—		$	209,665

	Year Ended December 31, 2013
	Parent			Guarantors			Non-Guarantors			Eliminations			Consolidated
	(in thousands)
Cash flows from operating activities	$	(9,958	)	$	17,940		$	(20,129	)	$	38,791		$	26,644
Cash flows from investing activities:
Additions to properties, plants, and equipment		(1,535	)		(107,893	)		(41,308	)		—			(150,736	)
Acquisition of Aurizon Mines Ltd.		(498,705	)		—			177,588			—			(321,117	)
Other investing activities		—			(11	)		(3,633	)		—			(3,644	)
Cash flows from financing activities:
Dividends paid to stockholders		(6,543	)		—			—			—			(6,543	)
Borrowings on debt		490,000			—			—			—			490,000
Payments on debt		—			(7,039	)		—			—			(7,039	)
Other financing activity		20,746			79,937			(63,361	)		(38,791	)		(1,469	)
Effect of exchange rates on cash		—			—			(4,905	)		—			(4,905	)
Changes in cash and cash equivalents		(5,995	)		(17,066	)		44,252			—			21,191
Beginning cash and cash equivalents		132,266			57,075			1,643			—			190,984
Ending cash and cash equivalents	$	126,271		$	40,009		$	45,895		$	—		$	212,175