Hycroft Mining (ANV) 10-Q 5 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	2-May-14
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Trading Symbol	'ANV	'
Entity Registrant Name	'Allied Nevada Gold Corp.	'
Entity Central Index Key	'0001376610	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	104,228,978

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets:	'	'
Cash and cash equivalents	$49,187	$81,470
Accounts receivable	4,855	8,227
Inventories - Note 3	78,264	76,221
Ore on leachpads, current - Note 4	167,045	156,693
Prepaids and other - Note 5	8,584	10,857
Assets held for sale	51,484	47,357
Deferred tax assets, current	6,565	22,943
Current assets	365,984	403,768
Restricted cash	39,933	41,215
Stockpiles and ore on leachpads, non-current - Note 4	127,292	116,192
Other assets, non-current - Note 5	12,209	12,682
Plant, equipment, and mine development, net - Note 6	886,501	890,271
Mineral properties, net - Note 7	48,362	48,473
Total assets	1,480,281	1,512,601
Liabilities:	'	'
Accounts payable	52,567	67,958
Interest payable	11,224	2,848
Other liabilities, current - Note 8	10,675	8,512
Debt, current - Note 9	77,305	76,780
Asset retirement obligation, current	20	20
Current liabilities	151,791	156,118
Other liabilities, non-current - Note 8	33,091	22,735
Debt, non-current - Note 9	494,160	522,427
Asset retirement obligation, non-current	15,615	15,344
Deferred tax liabilities, non-current	4,654	18,928
Total liabilities	699,311	735,552
Commitments and Contingencies - Note 18	'	'
Stockholders’ Equity:	'	'
Common stock, $0.001 par value - Shares authorized: 200,000,000 Shares issued and outstanding: 104,143,169 and 104,043,169, respectively	104	104
Additional paid-in-capital	751,729	750,119
Accumulated other comprehensive income - Note 16	3,653	1,674
Retained earnings	25,484	25,152
Total stockholders’ equity	780,970	777,049
Total liabilities and stockholders’ equity	$1,480,281	$1,512,601

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]	'	'
Common stock, par value, in dollars per share	$0.00	$0.00
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	104,143,169	104,043,169
Common stock, shares outstanding	104,143,169	104,043,169

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income and Comprehensive Income (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Revenue - Note 10	$85,525	$49,190
Operating expenses:	'	'
Production costs	56,359	21,802
Depreciation and amortization	13,631	3,846
Total cost of sales	69,990	25,648
Exploration, development, and land holding	728	987
Accretion	273	165
General and administrative	6,225	5,909
Loss on assets classified as held for sale and asset dispositions	1,178	0
Income from operations	7,131	16,481
Other income (expense):	'	'
Interest income	13	126
Interest expense - Note 9	-5,787	-5,129
Other, net - Note 11	14	-479
Income before income taxes	1,371	10,999
Income tax expense - Note 12	-1,039	-2,181
Net income	332	8,818
Other comprehensive income, net of tax	'	'
Reclassifications into earnings, net of tax - Note 16	9,478	5,088
Other comprehensive income, net of tax	1,979	1,629
Comprehensive income	2,311	10,447
Income per share:	'	'
Basic - Note 14, in dollars per share	$0	$0.10
Diluted - Note 14, in dollars per share	$0	$0.10
Change In Fair Value	'	'
Other comprehensive income, net of tax	'	'
Cash flow hedge instruments, net of tax	2,099	1,665
Settlements of cash flow hedges	'	'
Other comprehensive income, net of tax	'	'
Cash flow hedge instruments, net of tax	($9,598)	($5,124)

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:	'	'
Net income	$332	$8,818
Adjustments to reconcile net income for the period to net cash provided by operating activities:	'	'
Depreciation and amortization	13,631	3,846
Accretion	273	165
Loss on assets classified as held for sale and asset dispositions	1,178	0
Stock-based compensation - Note 14	1,610	1,304
Deferred taxes	1,039	0
Other non-cash items	0	484
Changes in operating assets and liabilities:	'	'
Accounts receivable	3,372	28,219
Inventories	-92	-15,410
Stockpiles and ore on leach pads	-15,069	-33,854
Prepaids and other	2,896	195
Assets held for sale	3,600	0
Accounts payable	888	3,023
Interest payable	8,376	8,269
Asset retirement obligation	0	-28
Other liabilities	1,759	790
Net cash provided by operating activities	23,793	5,821
Cash flows from investing activities:	'	'
Additions to plant, equipment, and mine development	-43,424	-94,424
Additions to mineral properties	0	-20
Decreases (increases) in restricted cash	1,282	-9,019
Net cash used in investing activities	-42,142	-103,463
Cash flows from financing activities:	'	'
Repayments of principal on capital lease and term loan obligations	-13,754	-5,987
Payments of debt issuance costs	-180	-559
Proceeds from issuance of common stock	0	254
Net cash used in financing activities	-13,934	-6,292
Net decrease in cash and cash equivalents	-32,283	-103,934
Cash and cash equivalents, beginning of period	81,470	347,047
Cash and cash equivalents, end of period	49,187	243,113
Supplemental cash flow disclosures:	'	'
Cash paid for interest	2,020	1,599
Significant non-cash financing and investing activities:	'	'
Mining equipment acquired through debt financing	0	62,427
Accounts payable reduction through capital lease	$0	$2,560

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Stockholders' Equity (USD $)	Total	Restricted Share Unit	Deferred Share Unit	Common Stock	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Retained Earnings
In Thousands, except Share data, unless otherwise specified	USD ($)	USD ($)	USD ($)	USD ($)	Restricted Share Unit	USD ($)	Restricted Share Unit	Deferred Share Unit	USD ($)	USD ($)
							USD ($)	USD ($)
Beginning Balance at Dec. 31, 2013	$777,049	'	'	$104	'	$750,119	'	'	$1,674	$25,152
Beginning Balance (in shares) at Dec. 31, 2013	'	'	'	104,043,169	'	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'
Stock-based compensation and RSU/DSU plan share issuances (in shares)	'	'	'	'	100,000	'	'	'	'	'
Stock-based compensation and RSU/DSU plan share issuances	'	1,348	262	'	'	'	1,348	262	'	'
Other comprehensive income - Note 16	1,979	'	'	'	'	'	'	'	1,979	'
Net income	332	'	'	'	'	'	'	'	'	332
Ending Balance at Mar. 31, 2014	$780,970	'	'	$104	'	$751,729	'	'	$3,653	$25,484
Ending Balance (in shares) at Mar. 31, 2014	'	'	'	104,143,169	'	'	'	'	'	'

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	1. Basis of Presentation
	The accompanying unaudited Condensed Consolidated Financial Statements of Allied Nevada Gold Corp. and its consolidated subsidiaries (the “Company”) have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations of the SEC. Therefore, the information included in this Quarterly Report on Form 10-Q should be read in conjunction with the audited Consolidated Financial Statements and related footnotes of the Company’s Annual Report on Form 10-K for the year ended December 31, 2013. In the opinion of management, all adjustments and disclosures necessary to fairly present the interim financial information set forth herein have been included. These interim financial statements, with the exception of the recently adopted accounting pronouncements described in Note 2 - Accounting Pronouncements, follow the same Significant Accounting Policies disclosed in the Company’s most recent Annual Report on Form 10-K.
	The results reported in these Condensed Consolidated Financial Statements are not necessarily indicative of the results that may be expected for the entire year or for future years.
	References to “$” refers to United States currency and “CDN $” to Canadian currency.

Accounting_Pronouncements

Accounting Pronouncements	3 Months Ended
	Mar. 31, 2014
Accounting Changes and Error Corrections [Abstract]	'
Accounting Pronouncements	'
	2. Accounting Pronouncements
	Recently Adopted
	In July 2013, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2013-11, “Presentation of an Unrecognized Tax Benefit When a Net Operating Loss (“NOL”) Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists.” ASU 2013-11 improves the reporting of unrecognized tax benefits when a NOL carryforward, a similar tax loss, or a tax credit carryforward exists, by eliminating diversity in practice. This pronouncement became effective for fiscal years, and interim periods within those years, beginning on or after December 15, 2013. Other than the additional presentation and disclosure requirements, the adoption of this guidance did not have an effect on the Company’s consolidated financial position, results of operations, or cash flows.
	Recently Issued
	In April 2014, the FASB issued ASU No. 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of a Component of an Entity.” ASU 2014-08 changes the criteria for reporting discontinued operations and requires new disclosures for discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. This pronouncement is effective for fiscal years, and interim periods within those years, beginning on or after December 15, 2014. Other than the additional presentation and disclosure requirements, the adoption of this guidance is not expected to have an effect on the Company’s consolidated financial position, results of operations, or cash flows.

Inventories

Inventories	3 Months Ended
	Mar. 31, 2014
Inventory Disclosure [Abstract]	'
Inventories	'
	3. Inventories
	The following table provides the components of inventories and the estimated recoverable gold ounces therein (in thousands, except ounces):
		31-Mar-14			31-Dec-13
		Amount		Gold ounces	Amount		Gold ounces
	Materials and supplies	$	17,100		$	18,002
	In-process	58,929		50,843	56,133		50,268
	Carbon in-process	1,603		1,353	859		724
	Precious metals	632		546	1,227		1,106
		$	78,264	52,742	$	76,221	52,098

Stockpiles_and_Ore_On_Leach_Pa

Stockpiles and Ore On Leach Pads	3 Months Ended
	Mar. 31, 2014
Stockpiles and Ore On Leach Pads [Abstract]	'
Stockpiles and Ore On Leach Pads	'
	4. Stockpiles and Ore On Leach Pads
	The following table summarizes stockpiles and ore on leach pads and the estimated recoverable gold ounces therein (in thousands, except ounces):
		31-Mar-14			31-Dec-13
		Amount		Gold ounces	Amount		Gold ounces
	Current:
	Ore on leach pads	$	167,045	131,847	$	156,693	136,313
	Non-current:
	Ore on leach pads	$	93,748	75,623	$	88,501	77,537
	Stockpiles	33,544		75,009	27,691		61,771
		$	127,292	150,632	$	116,192	139,308
	The period-end market value of the Company’s production-related inventories is determined in part by using period-end London Bullion Market Association (“LBMA”) prices per gold and silver ounce and is highly sensitive to these inputs. As discussed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013, the Company’s application of its lower of cost or market accounting policy using December 31, 2013 LBMA metal prices of $1,201.50 per ounce of gold and $19.50 per ounce of silver resulted in a $12.6 million write-down of Ore on leach pads. Although the Company had no write-downs during the three months ended March 31, 2014 using March 31, 2014 LBMA metal prices of $1,291.75 per ounce of gold and $19.97 per ounce of silver, a decline from these metal price levels could result in, or contribute to, a future write-down of production-related inventories.

Prepaids_and_Other_Assets

Prepaids and Other Assets	3 Months Ended
	Mar. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]	'
Prepaids and Other Assets	'
	5. Prepaids and Other Assets
	The following table provides the components of prepaids and other assets (in thousands):
		31-Mar-14		31-Dec-13
	Prepaids and other
	Prepaids	$	6,264	$	6,083
	Federal income taxes receivable	514		2,914
	Deposits	1,715		1,685
	Other	91		175
		$	8,584	$	10,857
	Other assets, non-current
	Debt issuance costs, net	$	11,755	$	12,208
	Reclamation policy premium, net	444		474
	Other	10		—
		$	12,209	$	12,682

Plant_Equipment_and_Mine_Devel

Plant, Equipment, and Mine Development, Net	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Plant, Equipment, and Mine Development, Net	'
	6. Plant, Equipment, and Mine Development, Net
	The following table provides the components of plant, equipment, and mine development, net (in thousands):
		Depreciable life or method	31-Mar-14			31-Dec-13
	Mine equipment	3 - 10 years	$	298,003		$	312,425
	Mine development	Units-of-production	122,756			120,038
	Leach pads	Units-of-production	79,113			78,737
	Process equipment	Units-of-production	66,624			60,875
	Buildings and leasehold improvements	3 - 10 years	25,327			25,083
	Furniture, fixtures, and office equipment	2 - 3 years	4,289			4,236
	Vehicles	3 - 5 years	2,943			2,943
	Construction in progress and other		437,327			421,117
			1,036,382			1,025,454
	Less: accumulated depreciation and amortization		(149,881		)	(135,183		)
			$	886,501		$	890,271

Mineral_Properties_Net_Mineral

Mineral Properties, Net Mineral Properties, Net	3 Months Ended
	Mar. 31, 2014
Mineral Properties, Net [Abstract]	'
Mineral Properties, Net	'
	7. Mineral Properties, Net
	Sale of Mineral Properties
	On January 24, 2014, the Company entered into a letter agreement (the “Letter Agreement”) for the sale of a 75% controlling interest in the Hasbrouck, Three Hills, and Esmeralda County exploration properties (the “Properties”) to West Kirkland Mining, Inc. (“WKM”) for $30.0 million. As part of the Letter Agreement, the Company granted WKM a 90-day exclusive right from the date of the Letter Agreement to complete the purchase of the Properties.
	On April 22, 2014 (the “Closing Date”), WKM completed the purchase of the Properties and made a $19.5 million payment to the Company, bringing the total payments received by the Company to $20.0 million when combined with the $0.5 million deposit received upon entering into the Letter Agreement. The final $10.0 million payment for the 25% interest retained by the Company is to be paid within 30 months after the Closing Date, subject to the Company’s option to elect to retain an interest in the Properties. In the event WKM does not meet its final $10.0 million commitment to the Company, or if the Company elects to decline the final payment and retain a 25% interest in the Properties, the Properties will be placed into a joint venture with WKM holding a 75% interest and the Company retaining a 25% interest.
	As of March 31, 2014, the Company’s carrying value of the Properties sold to WKM was $0.5 million resulting in the recognition of a $19.5 million gain in the second quarter.

Other_Liabilities

Other Liabilities	3 Months Ended
	Mar. 31, 2014
Other Liabilities Disclosure [Abstract]	'
Other Liabilities	'
	8. Other Liabilities
	The following table summarizes the components of other liabilities, current and non-current (in thousands):
		31-Mar-14		31-Dec-13
	Other liabilities, current
	Capital expenditure retentions	$	4,745	$	4,256
	Accrued compensation	3,975		3,587
	Derivative instruments - Note 16	1,285		669
	Mineral properties sale deposit - Note 7	500		—
	Other	170		—
		$	10,675	$	8,512
	Other liabilities, non-current
	Derivative instruments - Note 16	$	32,084	$	21,730
	Deferred royalty income	953		953
	Other	54		52
		$	33,091	$	22,735

Debt

Debt	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Debt	'
	9. Debt
	The following table summarizes the components of debt (in thousands):
				31-Mar-14				31-Dec-13
	Debt, current:
	Capital lease and term loan obligations			$	58,748		(1)	$	58,435		(1)
	Term and Security Deposit loan			18,557			(2)	18,345			(2)
				$	77,305			$	76,780
	Debt, non-current:
	Capital lease and term loan obligations			$	132,280			$	146,347
	8.75% Senior Notes due June 2019 (3)			361,880				376,080
				$	494,160			$	522,427
	(1)  Includes borrowings of $11.1 million and $5.7 million as of March 31, 2014 and December 31, 2013, respectively, for mine equipment included in Assets held for sale.
	(2)  Entire borrowing is attributable to the third rope shovel which is included in Assets held for sale.
	(3)  Effective interest rate of 8.375% after cross currency swap.
	Senior Notes
	In May 2012, the Company issued CDN $400.0 million of uncollateralized senior notes (the “Notes”). The Notes are denominated in Canadian dollars, pay interest semi-annually at the rate of 8.75% per annum, and mature in June 2019. Concurrently with the issuance of the Notes, the Company entered into a cross currency swap agreement based upon a notional amount of $400.4 million, which equaled the gross proceeds to the Company from the issuance, which fixed the interest rate at 8.375% as further described in Note 16 - Derivative Instruments. The Notes balance was $361.9 million based upon the U.S. dollar to Canadian dollar exchange rate on March 31, 2014. The Notes are guaranteed by most of the Company’s currently wholly-owned subsidiaries, including Hycroft Resources & Development Inc., which owns the Hycroft Mine and conducts mining operations.
	Capital Lease and Term Loan Obligations
	The Company’s capital lease and term loan obligations are for the purchase of mining equipment, bear interest at rates between 4% - 7% per annum, and primarily carry 60 - 84-month terms. The following is a summary of the future minimum payments under the Company’s capital lease and term loan obligations as of March 31, 2014 (in thousands):
	Fiscal Year	Minimum Lease
		Payments
	2014	$	54,459
	2015	49,888
	2016	47,383
	2017	32,931
	2018	11,875
	Thereafter	15,202
	Less: interest	(20,710		)
	Net minimum capital lease payments	191,028
	Less: current portion	(58,748		)
	Non-current portion	$	132,280
	Term and Security Deposit Loan Agreement
	In March 2013, the Company entered into a Term and Security Deposit Loan Agreement (the “Loan Agreement”) related to the purchase of three electric rope shovels. Under the Loan Agreement, the Company was made available up to $60.0 million ($20.0 million for each shovel) for scheduled advance security deposit payments pursuant to purchase agreements for the electric rope shovels and up to $90.0 million ($30.0 million for each shovel) in term loan financing to fund the purchase of the electric rope shovels once commissioned at the Hycroft Mine. Under the Loan Agreement, as electric rope shovels were commissioned, amounts previously advanced to the Company for security deposits, together with the remaining purchase price of each electric rope shovel, were converted to term loan obligations. The electric rope shovels secure all amounts borrowed by the Company under the Loan Agreement.
	During 2013, the Company commissioned two (of the three) electric rope shovels and, as such, amounts borrowed for these two shovels are included in capital lease and term loan obligations. Costs for the third electric rope shovel are included in Assets held for sale at March 31, 2014 and, as such, related amounts borrowed under the Loan Agreement are included in Debt, current as repayment will occur when the components of the third shovel are sold, which the Company believes will happen within the next twelve months. Advances for security deposits under the Loan Agreement bear an interest rate determined by an applicable rate plus the three month LIBOR, which approximated 4.7% at March 31, 2014. The two executed term loan obligations for the commissioned shovels carry seven year terms and bear interest at a fixed rate of approximately 6%.
	Revolving Credit Agreement
	In December 2013, the Company entered into a Second Amended and Restated Credit Agreement (the “Revolver”) which amended and restated the October 2012 Amended and Restated Credit Agreement (the “Previous Revolver”). The aggregate amount available to the Company under the Revolver is determined by a Borrowing Base (as defined in the Revolver) that makes up to $40.0 million available to the Company depending upon the value of the gold and silver in the Company’s ore on leach pads, in-process, and finished goods inventories less estimated remaining processing and selling costs. As of March 31, 2014, the full $40.0 million was available under the Revolver, which was reduced by $11.8 million for financial letters of credit issued to collateralize the cross currency swap (discussed in the following paragraph), resulting in remaining availability of $28.2 million. During the three months ended March 31, 2014, no cash amounts were borrowed under the Revolver.
	Two lenders under the Previous Revolver, who are not lenders under the Revolver, held (and continue to hold) a portion of the Notes cross currency swap which is no longer collateralized by the security they were granted under the Previous Revolver. As a result, the Company is required to collateralize the mark-to-market position of 22% of the $400.4 million notional amount of the cross currency swap held by the lenders under the Previous Revolver with cash, letters of credit, or a combination of the two. As of March 31, 2014, the Company had issued $11.8 million of financial letters of credit to collateralize the mark-to-market position of 22% of the cross currency swap’s liability position.
	Borrowings under the Revolver bear interest per annum at either LIBOR plus 450 basis points (“bps”) or at an Alternate Base Rate, as defined in the Revolver, plus 350 bps. Financial letters of credit and non-financial letters of credit bear interest per annum at 4.50% and 2.70%, respectively. The Revolver is collateralized by substantially all of the Company’s assets and matures on April 30, 2016, unless extended in accordance with the terms of Revolver. The Revolver contains an accordion feature which permits the credit available to be increased to up to $75.0 million through the addition of additional lenders.
	Debt Covenants
	The Company’s debt agreements contain representations and warranties, events of default, and covenants that are customary for agreements of these types. The Company’s Notes contain provisions that, among other things, restrict or limit the ability of the Company to redeem the Notes, incur or guarantee additional debt, pay dividends, and consolidate, merge or sell all or substantially all of the Company’s assets. The Company’s Revolver and certain capital lease obligations contain financial covenants related to Tangible Net Worth, Minimum Current Ratio, and Minimum Reserve Tail, as such terms are defined in the Revolver. The Company was in compliance with all debt covenants as of March 31, 2014.
	Interest Expense
	The following table summarizes the components of interest expense (in thousands):
				Three months ended March 31,
				2014				2013
	8.75% Senior Notes due June 2019 (1)			$	8,268			$	8,268
	Capital lease and term loan obligations			1,544				1,599
	Amortization of debt issuance costs			632				622
	Term and Security Deposit loan			221				—
	Revolver interest and standby fees			204				288
	Other interest expense			160				107
	Capitalized interest			(5,242		)		(5,755		)
				$	5,787			$	5,129
	(1) Effective interest rate of 8.375% after cross currency swap.

Revenue

Revenue	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Revenue	'
	10. Revenue
	The table below is a summary of the Company’s gold and silver revenue (in thousands, except ounces sold):
		Three months ended March 31,
		2014			2013
		Amount		Ounces sold	Amount		Ounces sold
	Gold revenue	$	77,234	59,470	$	43,972	27,256
	Silver revenue	8,291		406,234	5,218		174,766
		$	85,525		$	49,190

Other_Net_Notes

Other, Net (Notes)	3 Months Ended
	Mar. 31, 2014
Other, Net [Abstract]	'
Other, Net	'
	11. Other, Net
	The table below is a summary of the Company’s other income and expense (in thousands):
		Three months ended March 31,
		2014			2013
	Foreign currency transaction gain on Notes - Note 16	$	14,200		$	8,200
	Reclassification of loss into earnings from Accumulated other comprehensive income for cross currency swap - Note 16	(14,200		)	(8,200		)
	Loss on marketable equity securities	—			(484		)
	Other income	14			5
		$	14		$	(479	)

Income_Tax_Expense

Income Tax Expense	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
Income Tax Expense	'
	12. Income Tax Expense
	For the three months ended March 31, 2014, the Company recorded income tax expense of approximately $1.0 million, which included $0.5 million of income tax expense from income taxed at the estimated annual effective rate of approximately 34.7% and $0.5 million of additional income tax expense for discrete items related to stock-based compensation that were recognized as incurred in the current quarter.
	For the three months ended March 31, 2013, the Company recorded income tax expense of approximately $2.2 million based on an estimated annual effective rate of 20.0%. The estimated annual effective tax rate varied from the United States statutory tax rate of 35% primarily due to the effects of the percentage depletion deduction.
	Historically, the Company has not been subject to state or foreign income taxes as all of the Company’s operations and properties are located within Nevada, which does not impose a state income tax.
	As necessary, the Company provides a reserve against the benefits of uncertain tax positions taken in its tax filings that are not more likely than not to be sustained upon examination. Based on the weight of available evidence, the Company does not believe it has taken any uncertain tax positions that require the establishment of a reserve. The Company has not recorded any interest or penalties related to income tax liabilities as of March 31, 2014.

Income_Per_Share

Income Per Share	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Income Per Share	'
	13. Income Per Share
	The following table sets forth the computation of basic and diluted income per share (in thousands, except per share amounts):
		Three months ended March 31,
		2014		2013
	Net income available to common stockholders:	$	332	$	8,818
	Weighted average common shares:
	Basic	104,563		90,123
	Effect of shares granted under the:
	Restricted Share Unit Plan	1,540		697
	Deferred Phantom Unit Plan	248		248
	Deferred Share Unit Plan	134		34
	2007 Stock Option Plan	66		473
	Diluted	106,551		91,575
	Income per share:
	Basic	$	—	$	0.1
	Diluted	$	—	$	0.1

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2014
Postemployment Benefits [Abstract]	'
Stock-Based Compensation	'
	14. Stock-Based Compensation
	As of March 31, 2014, the Company’s stock-based compensation plans included the Deferred Phantom Unit Plan, the Deferred Share Unit Plan, the 2007 Stock Option Plan, and the Restricted Share Unit Plan. As discussed in Note 19 - Subsequent Events, at the Company’s May 1, 2014 Annual Meeting of Stockholders, the Company’s stockholders approved the Performance and Incentive Pay Plan, which includes a stock-based compensation plan that terminates and replaces the 2007 Stock Option Plan and the Restricted Share Unit Plan.
	The following tables summarize the Company’s stock-based compensation cost and unrecognized stock-based compensation cost by plan (in thousands):
		Three months ended March 31,
	Stock-based compensation cost by plan	2014			2013
	Restricted Share Unit	$	1,348		$	1,042
	Deferred Share Unit	262			262
		$	1,610		$	1,304
		March 31,
	Unrecognized stock-based compensation cost by plan	2014			2013
	Restricted Share Unit	$	12,163		$	16,510
	The following table summarizes awards and activity of the Company’s stock-based compensation plans:
		Three months ended March 31,
		2014							2013
		Restricted		2007  Stock			Deferred	Deferred	Restricted		2007  Stock		Deferred	Deferred
		Share Unit		Option			Phantom  Unit	Share  Unit	Share Unit		Option		Phantom  Unit	Share  Unit
	Outstanding on January 1,	1,630,145		500,000			248,136	134,408	849,482		640,000		248,136	34,008
	Granted	1,003,800		—			—	—	529,712		—		—	—
	Vested/exercised	(190,092	)	—			—	—	(115,226	)	(40,000	)	—	—
	Canceled/forfeited	(132,581	)	—			—	—	(75,574	)	—		—	—
	Outstanding, end of period	2,311,272		500,000			248,136	134,408	1,188,394		600,000		248,136	34,008
	Vested and unissued/exercisable, end of period	585,199		500,000			248,136	134,408	491,226		600,000		248,136	34,008

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	15. Fair Value Measurements
	Fair value accounting establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below:
	Level 1 – Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis;
	Level 2 – Quoted prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; and
	Level 3 – Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (supported by little or no market activity).
	Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Certain financial instruments, including cash and equivalents, accounts receivable, prepaids and other, accounts payable, and other liabilities, are carried at cost, which approximates fair value due to the short-term nature of these instruments. There were no changes to the Company’s valuation techniques and no transfers in or out of Levels 1 or 2 during the three months ended March 31, 2014.
	The following table sets forth by level, within the fair value hierarchy, the Company’s assets and liabilities measured at fair value on a recurring basis (in thousands).
	Assets	31-Mar-14		31-Dec-13		Input Hierarchy
						Level
	Assets held for sale	$	51,484	$	47,357	Level 2
	Liabilities
	Cross currency swap - Note 16	$	33,369	$	22,399	Level 2
	The Company’s assets held for sale are valued using a market approach for each item of property and equipment held for sale. Inputs include quoted market prices for identical or similar assets in markets that are not active and, as such, property and equipment held for sale is classified within Level 2 of the fair value hierarchy. Periodic changes in fair value (less costs to sell) to assets held for sale are included in Loss on assets classified as held for sale and asset dispositions.
	The Company’s cross currency swap derivative instrument is valued using a model which requires a variety of inputs, including contractual terms, market prices, yield curves, credit spreads, and correlations of such inputs. Some of the model inputs used in valuing the cross currency swap trade in liquid markets and, as such, model inputs can generally be verified and do not involve significant management judgment. The cross currency swap is classified within Level 2 of the fair value hierarchy and included in Other liabilities, current and non-current.
	Items Disclosed at Fair Value
	Using prevailing interest rates on similar debt issuances, credit spreads, and foreign currency forward rates, the estimated fair value of the Notes was $331.9 million at March 31, 2014. The fair value estimate of the Notes was prepared with the assistance of an independent third party and does not reflect the Notes actual trading value or the carrying value of the Notes in the Company’s condensed consolidated financial statements.

Derivative_Instruments

Derivative Instruments	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments	'
	16. Derivative Instruments
	Derivative Instrument Fair Values
	The following table is a summary of the fair values of the Company’s derivative instruments (in thousands):
			31-Mar-14						31-Dec-13
			Other liabilities,			Other liabilities,			Other liabilities,			Other liabilities,
			current			non-current			current			non-current
	Cross currency swap		$	1,285		$	32,084		$	669		$	21,730
	Derivative Instruments Designated as Hedges – Cash Flow Hedges
	Diesel Swap Agreements
	As of December 31, 2013, the Company had no remaining unsettled diesel swaps. The net gain in Accumulated other comprehensive income from previously settled diesel swaps will be reclassified into earnings when the hedged transaction impacts earnings (as specific gold ounces are sold).
	Cross Currency Swap
	In May 2012, the Company entered into a cross currency swap concurrent with the issuance of the Notes. The notional value of the cross currency swap was $400.4 million and the interest rate was fixed at 8.375%. The Company makes interest payments ($400.4 million at 8.375%) to the counterparty in exchange for the Canadian dollars required to service the Notes (CDN$400.0 million at 8.75%). Upon maturity the Company will pay $400.4 million to the counterparty and receive CDN $400.0 million, which will be used to satisfy the face amount of the issuance. As discussed in Note 9 - Debt, the Company is required to collateralize the mark-to-market position of 22% of the cross currency swap.
	Accumulated Other Comprehensive Income (Loss)
	The following table sets forth changes in accumulated other comprehensive income (loss) and the impacts cash flow hedges had on the Company’s earnings (in thousands):
		Three months ended March 31, 2014
		Cross Currency			Diesel Swap			Tax			Total
		Swap			Agreements			Effects
	Balance, beginning of period	$	1,920		$	653		$	(899	)	$	1,674
	Gain (loss) recognized in other comprehensive income (loss) for effective portion of unsettled cash flow hedges	3,230			—			(1,131		)	2,099
	Settlements of cash flow hedges	(14,766		)	—			5,168			(9,598		)
	Reclassifications into earnings when underlying hedged transactions impacted earnings:
	Reclassified to Interest expense	566			—			(198		)	368
	Reclassified to Other, net	14,200			—			(4,970		)	9,230
	Reclassified to Production costs	—			(185		)	65			(120		)
	Balance, end of period	$	5,150		$	468		$	(1,965	)	$	3,653
		Three months ended March 31, 2013
		Cross Currency			Diesel Swap			Tax			Total
		Swap			Agreements			Effects
	Balance, beginning of period	$	(9,574	)	$	1,241		$	2,917		$	(5,416	)
	Gain (loss) recognized in other comprehensive income (loss) for effective portion of unsettled cash flow hedges	2,646			(84		)	(897		)	1,665
	Settlements of cash flow hedges	(8,030		)	147			2,759			(5,124		)
	Reclassifications into earnings when underlying hedged transactions impacted earnings:
	Reclassified to Interest expense	(170		)	—			60			(110		)
	Reclassified to Other, net	8,200			—			(2,870		)	5,330
	Reclassified to Production costs	—			(203		)	71			(132		)
	Balance, end of period	$	(6,928	)	$	1,101		$	2,040		$	(3,787	)

Segment_Information

Segment Information	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	17. Segment Information
	The Company is engaged in the operation of the Hycroft Mine and the evaluation, acquisition, exploration, and advancement of gold exploration and development projects in Nevada. Our segments are defined as components of the Company for which separate financial information is available that is evaluated regularly by the executive decision-making group in assessing performance, establishing operating plans and budgets, and deciding how to allocate resources. Segment information as of and for the three months ended March 31, 2014 and 2013 is as follows (in thousands):
	Three months ended March 31,	Hycroft			Exploration			Corporate			Total
		Mine						and Other
	2014
	Revenue - Note 10	$	85,525		$	—		$	—		$	85,525
	Depreciation and amortization	13,369			—			262			13,631
	Income (loss) from operations	14,346			(728		)	(6,487		)	7,131
	Interest income	5			—			8			13
	Interest expense - Note 9	(1,924		)	—			(3,863		)	(5,787		)
	Other, net - Note 11	10			—			4			14
	Income (loss) before income taxes	12,437			(728		)	(10,338		)	1,371
	Total assets	1,401,941			38,106			40,234			1,480,281
	Capital expenditures	$	43,424		$	—		$	—		$	43,424
	2013
	Revenue - Note 10	$	49,190		$	—		$	—		$	49,190
	Depreciation and amortization	3,588			—			258			3,846
	Income (loss) from operations	23,635			(987		)	(6,167		)	16,481
	Interest income	4			—			122			126
	Interest expense - Note 9	(1,705		)	—			(3,424		)	(5,129		)
	Other, net - Note 11	2			—			(481		)	(479		)
	Income (loss) before income taxes	21,936			(987		)	(9,950		)	10,999
	Total assets	1,081,664			39,586			199,915			1,321,165
	Capital expenditures	$	156,802		$	—		$	49		$	156,851

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	18. Commitments and Contingencies
	The Company is from time to time involved in various legal actions related to its business, some of which purport to be class actions. Management does not believe, based on currently available information, that contingencies related to any pending or threatened legal matter will have a material adverse effect on the Company’s financial statements, although a contingency could be material to the Company’s results of operations or cash flows for a particular period depending on the results of operations and cash flows for such period. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources, and other factors.
	Financial Commitments Not Recorded in the Condensed Consolidated Financial Statements
	Purchase Obligations
	At March 31, 2014, the Company had purchase obligations totaling $44.6 million for the purchase of mill components and capital items associated with the expansion projects of the Hycroft Mine. The capital items included crusher components, mills and motors, electrical upgrades, and installation and commissioning costs. During 2014, the Company expects purchase obligations to be satisfied through cash payments.
	Temporary Housing Space Rental and Service Agreement
	The Company leases a temporary housing complex in Winnemucca, NV to provide lodging for employees, contractors, and consultants. The temporary housing complex is leased from a third party who maintains the property and grounds. The Company estimates the remaining payments due under the temporary housing space rental and service agreement will approximate $1.3 million in 2014, $3.6 million in 2015, and $0.2 million in 2016.
	Net Profit Royalty
	A portion of the Hycroft Mine is subject to a mining lease that requires a 4% net profit royalty be paid to the owner of certain patented and unpatented mining claims. The mining lease also requires an annual advance payment of $120,000 every year mining occurs on the leased claims. All advance annual payments are credited against the future payments due under the 4% net profit royalty. The total payments due under the mining lease are capped at $7.6 million, of which the Company has paid approximately $2.1 million through March 31, 2014. The Company estimates the remaining payments due under the mining lease will approximate $0.3 million in 2014, $1.7 million in 2015, $2.1 million in 2016, and $1.4 million in 2017.
	Letters of credit
	As discussed in Note 9 - Debt and Note 16 - Derivative Instruments, the Company had issued $11.8 million of financial letters of credit under the Revolver to collateralize a portion of the cross currency swap’s liability position. The Company was in compliance with all debt covenants as of March 31, 2014 and projects future compliance; however, an event of default, if not cured, could result in the Company losing availability of the Revolver which may require the portion of the cross currency swap currently collateralized with letters of credit to be collateralized entirely with cash.

Subsequent_Events

Subsequent Events	3 Months Ended
	Mar. 31, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	19. Subsequent Events
	Sale of Mineral Properties
	As discussed in Note 7 - Mineral Properties, Net, on April 22, 2014, the Company completed the sale of the Hasbrouck, Three Hills, and Esmeralda County exploration properties to West Kirkland Mining, Inc.
	Stockholder Approval of Performance and Incentive Pay Plan
	At the Company’s May 1, 2014 Annual Meeting of Stockholders, the Company’s stockholders approved the Performance and Incentive Pay Plan (the “PIP Plan”), which includes a stock-based compensation plan that terminates and replaces the 2007 Stock Option Plan and the Restricted Share Unit Plan (together, the “Former Plans”). The Company is no longer permitted to grant awards under the Former Plans; however, awards made under the Former Plans prior to May 1, 2014 will continue to vest in accordance with the provisions of the grants and pursuant to the terms of the Former Plans.
	The PIP Plan makes available up to 4,000,000 shares of common stock for awards to officers, employees, directors, and consultants, which may be granted in a variety of forms, including restricted stock, restricted stock units, stock options, stock appreciation rights, performance awards, and other stock awards. The terms and conditions of awards granted under the PIP Plan are established by the Compensation Committee of the Board of Directors, who also administers the PIP Plan.

Inventories_Tables

Inventories (Tables)	3 Months Ended
	Mar. 31, 2014
Inventory Disclosure [Abstract]	'
Components of Inventories and Estimated Recoverable Gold Ounces	'
	The following table provides the components of inventories and the estimated recoverable gold ounces therein (in thousands, except ounces):
		31-Mar-14			31-Dec-13
		Amount		Gold ounces	Amount		Gold ounces
	Materials and supplies	$	17,100		$	18,002
	In-process	58,929		50,843	56,133		50,268
	Carbon in-process	1,603		1,353	859		724
	Precious metals	632		546	1,227		1,106
		$	78,264	52,742	$	76,221	52,098

Stockpiles_and_Ore_On_Leach_Pa1

Stockpiles and Ore On Leach Pads (Tables)	3 Months Ended
	Mar. 31, 2014
Stockpiles and Ore On Leach Pads [Abstract]	'
Summary of Stockpiles and Ore on Leach Pads and Estimated Recoverable Gold Ounces	'
	The following table summarizes stockpiles and ore on leach pads and the estimated recoverable gold ounces therein (in thousands, except ounces):
		31-Mar-14			31-Dec-13
		Amount		Gold ounces	Amount		Gold ounces
	Current:
	Ore on leach pads	$	167,045	131,847	$	156,693	136,313
	Non-current:
	Ore on leach pads	$	93,748	75,623	$	88,501	77,537
	Stockpiles	33,544		75,009	27,691		61,771
		$	127,292	150,632	$	116,192	139,308

Prepaids_and_Other_Assets_Tabl

Prepaids and Other Assets (Tables)	3 Months Ended
	Mar. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]	'
Components of Prepaid and Other Assets	'
	The following table provides the components of prepaids and other assets (in thousands):
		31-Mar-14		31-Dec-13
	Prepaids and other
	Prepaids	$	6,264	$	6,083
	Federal income taxes receivable	514		2,914
	Deposits	1,715		1,685
	Other	91		175
		$	8,584	$	10,857
	Other assets, non-current
	Debt issuance costs, net	$	11,755	$	12,208
	Reclamation policy premium, net	444		474
	Other	10		—
		$	12,209	$	12,682

Plant_Equipment_and_Mine_Devel1

Plant, Equipment, and Mine Development, Net (Tables)	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Components of Plant, Equipment and Mine Development	'
	The following table provides the components of plant, equipment, and mine development, net (in thousands):
		Depreciable life or method	31-Mar-14			31-Dec-13
	Mine equipment	3 - 10 years	$	298,003		$	312,425
	Mine development	Units-of-production	122,756			120,038
	Leach pads	Units-of-production	79,113			78,737
	Process equipment	Units-of-production	66,624			60,875
	Buildings and leasehold improvements	3 - 10 years	25,327			25,083
	Furniture, fixtures, and office equipment	2 - 3 years	4,289			4,236
	Vehicles	3 - 5 years	2,943			2,943
	Construction in progress and other		437,327			421,117
			1,036,382			1,025,454
	Less: accumulated depreciation and amortization		(149,881		)	(135,183		)
			$	886,501		$	890,271

Other_Liabilities_Tables

Other Liabilities (Tables)	3 Months Ended
	Mar. 31, 2014
Other Liabilities Disclosure [Abstract]	'
Components of Other Liabilities, Current and Non-current	'
	The following table summarizes the components of other liabilities, current and non-current (in thousands):
		31-Mar-14		31-Dec-13
	Other liabilities, current
	Capital expenditure retentions	$	4,745	$	4,256
	Accrued compensation	3,975		3,587
	Derivative instruments - Note 16	1,285		669
	Mineral properties sale deposit - Note 7	500		—
	Other	170		—
		$	10,675	$	8,512
	Other liabilities, non-current
	Derivative instruments - Note 16	$	32,084	$	21,730
	Deferred royalty income	953		953
	Other	54		52
		$	33,091	$	22,735

Debt_Tables

Debt (Tables)	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Summary of Components of Debt	'
	The following table summarizes the components of debt (in thousands):
				31-Mar-14				31-Dec-13
	Debt, current:
	Capital lease and term loan obligations			$	58,748		(1)	$	58,435		(1)
	Term and Security Deposit loan			18,557			(2)	18,345			(2)
				$	77,305			$	76,780
	Debt, non-current:
	Capital lease and term loan obligations			$	132,280			$	146,347
	8.75% Senior Notes due June 2019 (3)			361,880				376,080
				$	494,160			$	522,427
	(1)  Includes borrowings of $11.1 million and $5.7 million as of March 31, 2014 and December 31, 2013, respectively, for mine equipment included in Assets held for sale.
	(2)  Entire borrowing is attributable to the third rope shovel which is included in Assets held for sale.
	(3)  Effective interest rate of 8.375% after cross currency swap.
Future Minimum Capital Lease Obligation Payments, Including Interest	'
	The following is a summary of the future minimum payments under the Company’s capital lease and term loan obligations as of March 31, 2014 (in thousands):
	Fiscal Year	Minimum Lease
		Payments
	2014	$	54,459
	2015	49,888
	2016	47,383
	2017	32,931
	2018	11,875
	Thereafter	15,202
	Less: interest	(20,710		)
	Net minimum capital lease payments	191,028
	Less: current portion	(58,748		)
	Non-current portion	$	132,280
Summary of Components of Interest Expense	'
	The following table summarizes the components of interest expense (in thousands):
				Three months ended March 31,
				2014				2013
	8.75% Senior Notes due June 2019 (1)			$	8,268			$	8,268
	Capital lease and term loan obligations			1,544				1,599
	Amortization of debt issuance costs			632				622
	Term and Security Deposit loan			221				—
	Revolver interest and standby fees			204				288
	Other interest expense			160				107
	Capitalized interest			(5,242		)		(5,755		)
				$	5,787			$	5,129
	(1) Effective interest rate of 8.375% after cross currency swap.

Revenue_Tables

Revenue (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Summary of Revenue from Gold and Silver Revenue	'
	The table below is a summary of the Company’s gold and silver revenue (in thousands, except ounces sold):
		Three months ended March 31,
		2014			2013
		Amount		Ounces sold	Amount		Ounces sold
	Gold revenue	$	77,234	59,470	$	43,972	27,256
	Silver revenue	8,291		406,234	5,218		174,766
		$	85,525		$	49,190

Other_Net_Tables

Other, Net (Tables)	3 Months Ended
	Mar. 31, 2014
Other, Net [Abstract]	'
Schedule of Other Operating Cost and Expense, by Component	'
	The table below is a summary of the Company’s other income and expense (in thousands):
		Three months ended March 31,
		2014			2013
	Foreign currency transaction gain on Notes - Note 16	$	14,200		$	8,200
	Reclassification of loss into earnings from Accumulated other comprehensive income for cross currency swap - Note 16	(14,200		)	(8,200		)
	Loss on marketable equity securities	—			(484		)
	Other income	14			5
		$	14		$	(479	)

Income_Per_Share_Tables

Income Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Computation of Basic and Diluted Earnings Per Share	'
	The following table sets forth the computation of basic and diluted income per share (in thousands, except per share amounts):
		Three months ended March 31,
		2014		2013
	Net income available to common stockholders:	$	332	$	8,818
	Weighted average common shares:
	Basic	104,563		90,123
	Effect of shares granted under the:
	Restricted Share Unit Plan	1,540		697
	Deferred Phantom Unit Plan	248		248
	Deferred Share Unit Plan	134		34
	2007 Stock Option Plan	66		473
	Diluted	106,551		91,575
	Income per share:
	Basic	$	—	$	0.1
	Diluted	$	—	$	0.1

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2014
Postemployment Benefits [Abstract]	'
Stock-Based Compensation Cost (Benefit)	'
	The following tables summarize the Company’s stock-based compensation cost and unrecognized stock-based compensation cost by plan (in thousands):
		Three months ended March 31,
	Stock-based compensation cost by plan	2014			2013
	Restricted Share Unit	$	1,348		$	1,042
	Deferred Share Unit	262			262
		$	1,610		$	1,304
Unrecognized Stock-Based Compensation Cost by Plan	'
		March 31,
	Unrecognized stock-based compensation cost by plan	2014			2013
	Restricted Share Unit	$	12,163		$	16,510
Activity of Stock-Based Compensation Plans	'
	The following table summarizes awards and activity of the Company’s stock-based compensation plans:
		Three months ended March 31,
		2014							2013
		Restricted		2007  Stock			Deferred	Deferred	Restricted		2007  Stock		Deferred	Deferred
		Share Unit		Option			Phantom  Unit	Share  Unit	Share Unit		Option		Phantom  Unit	Share  Unit
	Outstanding on January 1,	1,630,145		500,000			248,136	134,408	849,482		640,000		248,136	34,008
	Granted	1,003,800		—			—	—	529,712		—		—	—
	Vested/exercised	(190,092	)	—			—	—	(115,226	)	(40,000	)	—	—
	Canceled/forfeited	(132,581	)	—			—	—	(75,574	)	—		—	—
	Outstanding, end of period	2,311,272		500,000			248,136	134,408	1,188,394		600,000		248,136	34,008
	Vested and unissued/exercisable, end of period	585,199		500,000			248,136	134,408	491,226		600,000		248,136	34,008

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Financial Instruments Measured at Fair Value on Recurring Basis	'
	The following table sets forth by level, within the fair value hierarchy, the Company’s assets and liabilities measured at fair value on a recurring basis (in thousands).
	Assets	31-Mar-14		31-Dec-13		Input Hierarchy
						Level
	Assets held for sale	$	51,484	$	47,357	Level 2
	Liabilities
	Cross currency swap - Note 16	$	33,369	$	22,399	Level 2

Derivative_Instruments_Tables

Derivative Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments Designated as Cash Flow Hedges	'
	The following table is a summary of the fair values of the Company’s derivative instruments (in thousands):
			31-Mar-14						31-Dec-13
			Other liabilities,			Other liabilities,			Other liabilities,			Other liabilities,
			current			non-current			current			non-current
	Cross currency swap		$	1,285		$	32,084		$	669		$	21,730
Changes in Accumulated Other Comprehensive Income (Loss) and Effect of the Cash Flow Hedges	'
	The following table sets forth changes in accumulated other comprehensive income (loss) and the impacts cash flow hedges had on the Company’s earnings (in thousands):
		Three months ended March 31, 2014
		Cross Currency			Diesel Swap			Tax			Total
		Swap			Agreements			Effects
	Balance, beginning of period	$	1,920		$	653		$	(899	)	$	1,674
	Gain (loss) recognized in other comprehensive income (loss) for effective portion of unsettled cash flow hedges	3,230			—			(1,131		)	2,099
	Settlements of cash flow hedges	(14,766		)	—			5,168			(9,598		)
	Reclassifications into earnings when underlying hedged transactions impacted earnings:
	Reclassified to Interest expense	566			—			(198		)	368
	Reclassified to Other, net	14,200			—			(4,970		)	9,230
	Reclassified to Production costs	—			(185		)	65			(120		)
	Balance, end of period	$	5,150		$	468		$	(1,965	)	$	3,653
		Three months ended March 31, 2013
		Cross Currency			Diesel Swap			Tax			Total
		Swap			Agreements			Effects
	Balance, beginning of period	$	(9,574	)	$	1,241		$	2,917		$	(5,416	)
	Gain (loss) recognized in other comprehensive income (loss) for effective portion of unsettled cash flow hedges	2,646			(84		)	(897		)	1,665
	Settlements of cash flow hedges	(8,030		)	147			2,759			(5,124		)
	Reclassifications into earnings when underlying hedged transactions impacted earnings:
	Reclassified to Interest expense	(170		)	—			60			(110		)
	Reclassified to Other, net	8,200			—			(2,870		)	5,330
	Reclassified to Production costs	—			(203		)	71			(132		)
	Balance, end of period	$	(6,928	)	$	1,101		$	2,040		$	(3,787	)

Segment_Information_Tables

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	Segment information as of and for the three months ended March 31, 2014 and 2013 is as follows (in thousands):
	Three months ended March 31,	Hycroft			Exploration			Corporate			Total
		Mine						and Other
	2014
	Revenue - Note 10	$	85,525		$	—		$	—		$	85,525
	Depreciation and amortization	13,369			—			262			13,631
	Income (loss) from operations	14,346			(728		)	(6,487		)	7,131
	Interest income	5			—			8			13
	Interest expense - Note 9	(1,924		)	—			(3,863		)	(5,787		)
	Other, net - Note 11	10			—			4			14
	Income (loss) before income taxes	12,437			(728		)	(10,338		)	1,371
	Total assets	1,401,941			38,106			40,234			1,480,281
	Capital expenditures	$	43,424		$	—		$	—		$	43,424
	2013
	Revenue - Note 10	$	49,190		$	—		$	—		$	49,190
	Depreciation and amortization	3,588			—			258			3,846
	Income (loss) from operations	23,635			(987		)	(6,167		)	16,481
	Interest income	4			—			122			126
	Interest expense - Note 9	(1,705		)	—			(3,424		)	(5,129		)
	Other, net - Note 11	2			—			(481		)	(479		)
	Income (loss) before income taxes	21,936			(987		)	(9,950		)	10,999
	Total assets	1,081,664			39,586			199,915			1,321,165
	Capital expenditures	$	156,802		$	—		$	49		$	156,851

Components_of_Inventories_and_

Components of Inventories and Estimated Recoverable Gold Ounces (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	ozt	ozt
Inventory Disclosure [Abstract]	'	'
Materials and supplies	$17,100	$18,002
In-process	58,929	56,133
Carbon in-process	1,603	859
Precious metals	632	1,227
Inventories	$78,264	$76,221
In-process (in ounces)	50,843	50,268
Carbon in-process (in ounces)	1,353	724
Precious metals (in ounces)	546	1,106
Inventory net, (in ounces)	52,742	52,098

Summary_of_Stockpiles_and_Ore_

Summary of Stockpiles and Ore on Leach Pads and Estimated Recoverable Gold Ounces (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
	ozt	ozt
Stockpiles and Ore On Leach Pads [Abstract]	'	'
Ore on leach pads, current	$167,045,000	$156,693,000
Ore on leach pads, non-current	93,748,000	88,501,000
Stockpiles, non-current	33,544,000	27,691,000
Stockpiles and Ore on leach pads, non-current	127,292,000	116,192,000
Ore on leach pads, current, ounces	131,847	136,313
Ore on leach pads, non-current, ounces	75,623	77,537
Stockpiles, non-current, ounces	75,009	61,771
Stockpiles and Ore on leach pads, non-current, ounces	150,632	139,308
London Bullion Market Association (LBMA) gold price	1,291.75	1,201.50
London Bullion Market Association (LBMA) silver price	19.97	19.5
Inventory write-down	$0	$12,600,000

Components_of_Prepaid_and_Othe

Components of Prepaid and Other Assets (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Prepaids and other	'	'
Prepaids	$6,264	$6,083
Federal income taxes receivable	514	2,914
Deposits	1,715	1,685
Other	91	175
Prepaids and other	8,584	10,857
Other assets, non-current	'	'
Debt issuance costs, net	11,755	12,208
Reclamation policy premium, net	444	474
Other	10	0
Other assets, non-current	$12,209	$12,682

Components_of_Plant_Equipment_

Components of Plant, Equipment and Mine Development (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]	'	'
Construction in progress and other	437,327	421,117
Plant and equipment, gross	1,036,382	1,025,454
Less: accumulated depreciation and amortization	-149,881	-135,183
Plant and equipment, net	886,501	890,271
Mine equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Plant and equipment, gross	298,003	312,425
Mine equipment | Minimum	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable life (years)	'3 years	'3 years
Mine equipment | Maximum	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable life (years)	'10 years	'10 years
Mine development	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable method	'Units-of-production	'Units-of-production
Plant and equipment, gross	122,756	120,038
Leach pads	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable method	'Units-of-production	'Units-of-production
Plant and equipment, gross	79,113	78,737
Process equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable method	'Units-of-production	'Units-of-production
Plant and equipment, gross	66,624	60,875
Buildings and leasehold improvements	'	'
Property, Plant and Equipment [Line Items]	'	'
Plant and equipment, gross	25,327	25,083
Buildings and leasehold improvements | Minimum	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable life (years)	'3 years	'3 years
Buildings and leasehold improvements | Maximum	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable life (years)	'10 years	'10 years
Furniture, fixtures, and office equipment	'	'
Property, Plant and Equipment [Line Items]	'	'
Plant and equipment, gross	4,289	4,236
Furniture, fixtures, and office equipment | Minimum	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable life (years)	'2 years	'2 years
Furniture, fixtures, and office equipment | Maximum	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable life (years)	'3 years	'3 years
Vehicles	'	'
Property, Plant and Equipment [Line Items]	'	'
Plant and equipment, gross	2,943	2,943
Vehicles | Minimum	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable life (years)	'3 years	'3 years
Vehicles | Maximum	'	'
Property, Plant and Equipment [Line Items]	'	'
Depreciable life (years)	'5 years	'5 years

Mineral_Properties_Net_Details

Mineral Properties, Net (Details) (USD $)	0 Months Ended		0 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Jan. 24, 2014	Mar. 31, 2014	Apr. 22, 2014	Jun. 30, 2014
			Subsequent Event	Scenario, Forecast
Mineral Properties [Line Items]	'	'	'	'
Percentage of interest on mineral properties for Sale	75.00%	'	'	'
Total price of Letter Agreement to sell business	$30	'	'	'
Length of time to complete purchase of business	'90 days	'	'	'
Proceeds from sale of the Properties, excluding deposit	'	'	19.5	'
Proceeds from sale of the Properties	'	'	20	'
Earnest money deposits	'	'	0.5	'
Sale of business, final payment to be received, amount	'	'	10	'
Sale of business, final payment to be received, length of time after closing date	'	'	'30 months	'
Interest in joint ventures, ownership percentage by the Company	'	'	25.00%	'
Interest in joint ventures, ownership percentage by WKM	'	'	75.00%	'
Mineral properties sold	'	0.5	'	'
Gain on sale of mineral properties	'	'	'	$19.50

Components_of_Other_Liabilitie

Components of Other Liabilities, Current and Non-current (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Other liabilities, current	'	'
Capital expenditure retentions	$4,745	$4,256
Accrued compensation	3,975	3,587
Derivative instruments - Note 16	1,285	669
Mineral properties sale deposit - Note 7	500	0
Other	170	0
Other liabilities, current	10,675	8,512
Other liabilities, non-current	'	'
Derivative instruments - Note 16	32,084	21,730
Deferred royalty income	953	953
Other	54	52
Other liabilities, non-current	$33,091	$22,735

Summary_of_Components_of_Debt_

Summary of Components of Debt (Detail) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Debt, current:	'		'
Capital lease and term loan obligations	$58,748	[1]	$58,435	[1]
Term and Security Deposit loan	18,557	[2]	18,345	[2]
Debt, current	77,305		76,780
Debt, non-current:	'		'
Capital lease and term loan obligations	132,280		146,347
8.75% Senior Notes due June 2019	361,880	[3]	376,080	[3]
Debt, non-current	$494,160		$522,427
[1]	Includes borrowings of $11.1 million and $5.7 million as of March 31, 2014 and December 31, 2013, respectively, for mine equipment included in Assets held for sale.
[2]	Entire borrowing is attributable to the third rope shovel which is included in Assets held for sale.
[3]	Effective interest rate of 8.375% after cross currency swap.

Summary_of_Components_of_Debt_1

Summary of Components of Debt (Parenthetical) (Detail) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	31-May-12
Debt Disclosure [Abstract]	'	'	'	'
Senior Notes, due date	'2019-06	'2019-06	'2019-06	'
Senior Notes, stated interest rate	8.75%	8.75%	8.75%	8.75%
Borrowings for Assets held-for-sale	$11.10	'	$5.70	'
Senior Notes, effective interest rate	8.38%	'	'	'

Debt_Additional_Information_De

Debt - Additional Information (Detail)

3 Months Ended

12 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

31-May-12

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

31-May-12

31-May-12

USD ($)

USD ($)

CAD

Security Deposit

Loan Agreement

Loan Agreement

Loan Agreement

Loan Agreement

Minimum

Maximum

Second Amended and Restated Credit Agreement

Second Amended and Restated Credit Agreement

Amended and Restated Credit Agreement

Letter of Credit

Non-financial Letters of Credit

London Interbank Offered Rate (LIBOR)

Base Rate

Cross currency swap

Cross currency swap

Cross currency swap

Obligation

shovel

shovel

Security Deposit

Capital lease obligation

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

8.375% Senior Subordinated Notes

shovel

USD ($)

USD ($)

USD ($)

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior Notes face value

'

'

'

400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior Notes, stated interest rate

8.75%

8.75%

8.75%

8.75%

'

'

'

'

'

'

'

'

'

'

4.50%

2.70%

'

'

'

'

'

Senior Notes, due date

'2019-06

'2019-06

'2019-06

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional value of cross currency swap

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

400,400,000

400,400,000

Senior Notes, interest rate after cross currency and interest rate swap

'

'

'

8.38%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8.38%

'

Senior Notes

361,880,000

[1]

'

376,080,000

[1]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capital lease obligations are for the purchase of mining equipment, bear interest at rates

'

'

'

'

'

'

'

'

'

4.00%

7.00%

'

'

'

'

'

'

'

'

'

'

Capital lease obligations, terms

'

'

'

'

'

'

'

'

'

'60 months

'84 months

'

'

'

'

'

'

'

'

'

'

Loan Agreement, number of electric rope shovels to be purchased

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loan Agreement, available amount

'

'

'

'

'

'

'

60,000,000

90,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Loan agreement available amount per shovel

'

'

'

'

'

'

'

20,000,000

30,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Number of electric rope shovels for which amounts borrowed included in capital lease

'

'

2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of electric rope shovels previously commissioned

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loan Agreement, Interest rate on security deposit

'

'

'

'

4.70%

6.00%

'

'

'

'

'

'

'

'

'

'

4.50%

3.50%

'

'

'

Number of Executed Term Loan Obligations

2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loan Agreement, capital lease payment terms

'7 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revolving credit agreement, borrowing capacity

'

'

'

'

'

'

'

'

'

'

'

'

40,000,000

'

'

'

'

'

'

'

'

Revolver current borrowing capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

40,000,000

'

'

'

'

'

'

'

Financial letters of credit collateral amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11,800,000

'

'

Revolving remaining borrowing capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

28,200,000

'

'

'

'

'

'

'

Cash collateral as percentage of mark-to-market liability position

22.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Maximum Borrowing Capacity under Agreement Accordion Feature

'

'

'

'

'

'

'

'

'

'

'

$75,000,000

'

'

'

'

'

'

'

'

'

[1]

Effective interest rate of 8.375% after cross currency swap.

Future_Minimum_Capital_Lease_O

Future Minimum Capital Lease Obligation Payments, Including Interest (Detail) (USD $)	Mar. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'		'
2014	$54,459		'
2015	49,888		'
2016	47,383		'
2017	32,931		'
2018	11,875		'
Thereafter	15,202		'
Less: interest	-20,710		'
Net minimum capital lease payments	191,028		'
Less: current portion	-58,748	[1]	-58,435	[1]
Non-current portion	$132,280		$146,347
[1]	Includes borrowings of $11.1 million and $5.7 million as of March 31, 2014 and December 31, 2013, respectively, for mine equipment included in Assets held for sale.

Summary_of_Components_of_Inter

Summary of Components of Interest Expense (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Interest Expense [Line Items]	'		'
Capital lease and term loan obligations	$1,544		$1,599
Amortization of debt issuance costs	632		622
Term and Security Deposit loan	221		0
Revolver interest and standby fees	204		288
Other interest expense	160		107
Capitalized interest	-5,242		-5,755
Interest expense	5,787		5,129
8.75% Senior Notes due June 2019	'		'
Interest Expense [Line Items]	'		'
Interest expense	$8,268	[1]	$8,268	[1]
[1]	Effective interest rate of 8.375% after cross currency swap.

Summary_of_Components_of_Inter1

Summary of Components of Interest Expense (Parenthetical) (Detail)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	31-May-12
Debt Disclosure [Abstract]	'	'	'	'
Senior Notes, stated interest rate	8.75%	8.75%	8.75%	8.75%
Senior Notes, due date	'2019-06	'2019-06	'2019-06	'
Senior Notes, interest rate after cross currency and interest rate swap	'	'	'	8.38%

Summary_of_Revenue_from_Gold_a

Summary of Revenue from Gold and Silver Revenue (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
	ozt	ozt
Segment Reporting [Abstract]	'	'
Gold revenue	$77,234	$43,972
Silver revenue	8,291	5,218
Total	$85,525	$49,190
Gold Ounces Sold	59,470	27,256
Silver Ounces Sold	406,234	174,766

Other_Net_Details

Other, Net (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other, Net [Abstract]	'	'
Foreign currency transaction gain on Notes - Note 16	$14,200	$8,200
Reclassification of loss into earnings from Accumulated other comprehensive income for cross currency swap - Note 16	-14,200	-8,200
Loss on marketable equity securities	0	-484
Other income	14	5
Other, net	$14	($479)

Income_Tax_Expense_Additional_

Income Tax Expense - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]	'	'
Income tax expense	$1,039,000	$2,181,000
Income tax expense from income taxed at the estimated annual effective rate	500,000	'
Effective tax rate	34.70%	20.00%
income tax expense for discrete items related to stock-based compensation	$500,000	'
United States statutory tax rate	35.00%	'

Computation_of_Basic_and_Dilut

Computation of Basic and Diluted Income Per Share (Detail) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]	'	'
Net income available to common stockholders:	$332	$8,818
Weighted average common shares:	'	'
Basic	104,563	90,123
Effect of shares granted under the:	'	'
Effect of shares granted under the Restricted Share Unit Plan	1,540	697
Effect of stock options granted under the 2007 Stock Option Plan	66	473
Effect of shares granted under the Deferred Phantom Unit Plan	248	248
Effect of shares granted under the Deferred Share Unit Plan	134	34
Diluted	106,551	91,575
Earnings Per Share, Basic and Diluted [Abstract]	'	'
Basic, in dollars per share	$0	$0.10
Diluted, in dollars per share	$0	$0.10

StockBased_Compensation_Cost_b

Stock-Based Compensation Cost by Plan (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based compensation	$1,610	$1,304
Restricted Share Unit	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based compensation	1,348	1,042
Deferred Share Unit	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Stock-based compensation	$262	$262

Unrecognized_StockBased_Compen

Unrecognized Stock-Based Compensation Cost by Plan (Detail) (Restricted Share Unit, USD $)	Mar. 31, 2014	Mar. 31, 2013
In Thousands, unless otherwise specified
Restricted Share Unit	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unrecognized stock-based compensation cost	$12,163	$16,510

Activity_of_StockBased_Compens

Activity of Stock-Based Compensation Plans (Detail)

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Restricted Share Unit

Restricted Share Unit

2007 Stock Option

2007 Stock Option

2007 Stock Option

Deferred Phantom Unit

Deferred Phantom Unit

Deferred Phantom Unit

Deferred Phantom Unit

Deferred Share Unit

Deferred Share Unit

Deferred Share Unit

Deferred Share Unit

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding, beginning of period

'

'

640,000

500,000

500,000

'

'

'

'

'

'

'

'

Vested/exercised

'

'

-40,000

'

'

'

'

'

'

'

'

'

'

Outstanding, end of period

'

'

600,000

500,000

500,000

'

'

'

'

'

'

'

'

Vested and unissued/exercisable, end of period

'

'

600,000

500,000

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding, beginning of period

1,630,145

849,482

'

'

'

248,136

248,136

248,136

248,136

134,408

134,408

34,008

34,008

Granted

1,003,800

529,712

'

'

'

'

'

'

'

'

'

'

'

Vested/exercised

-190,092

-115,226

'

'

'

'

'

'

'

'

'

'

'

Canceled/forfeited

-132,581

-75,574

'

'

'

'

'

'

'

'

'

'

'

Outstanding, end of period

2,311,272

1,188,394

'

'

'

248,136

248,136

248,136

248,136

134,408

134,408

34,008

34,008

Vested and unissued/exercisable, end of period

585,199

491,226

'

'

'

248,136

'

248,136

'

134,408

'

34,008

'

Financial_Instruments_Measured

Financial Instruments Measured at Fair Value on Recurring Basis (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets held for sale	$51,484	$47,357
Fair Value, Inputs, Level 2	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Assets held for sale	51,484	47,357
Fair Value, Inputs, Level 2 | Cross currency swap	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Cross currency swap - Note 16	$33,369	$22,399

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	Mar. 31, 2014
In Millions, unless otherwise specified
Fair Value Disclosures [Abstract]	'
Senior note, estimated fair value	$331.90

Derivative_Instruments_Designa

Derivative Instruments Designated as Cash Flow Hedges (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Other liabilities, current	$1,285	$669
Prepaids and other | Cross currency swap	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative asset	'	669
Other liabilities, current | Cross currency swap	'	'
Derivatives, Fair Value [Line Items]	'	'
Other liabilities, current	1,285	'
Other liabilities, non-current | Cross currency swap	'	'
Derivatives, Fair Value [Line Items]	'	'
Other liabilities, non-current	$32,084	$21,730

Derivative_Instruments_Additio

Derivative Instruments - Additional Information (Detail)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	31-May-12	31-May-12	31-May-12	31-May-12
				CAD	Cross currency swap	Cross currency swap	Cross currency swap
					USD ($)	CAD	8.375% Senior Subordinated Notes
							USD ($)
Derivative Instrument [Line Items]	'	'	'	'	'	'	'
Notional value of cross currency swap	'	'	'	'	$400,400,000	'	$400,400,000
Senior Notes, interest rate after cross currency and interest rate swap	'	'	'	8.38%	8.38%	8.38%	'
Senior Notes face value	'	'	'	400,000,000	'	'	'
Senior Notes, stated interest rate	8.75%	8.75%	8.75%	8.75%	'	'	'
Payment to counterparty upon maturity of derivative	'	'	'	'	400,400,000	'	'
Proceed from counterparty upon maturity of derivative	'	'	'	'	'	400,000,000	'
Cash collateral as percentage of mark-to-market liability position	22.00%	'	'	'	'	'	'

Changes_in_Accumulated_Other_C

Changes in Accumulated Other Comprehensive Income (Loss) and Effect of Cash Flow Hedges (Detail) (USD $)

3 Months Ended

3 Months Ended

In Thousands, unless otherwise specified

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Change In Fair Value

Change In Fair Value

Settlements of cash flow hedges

Settlements of cash flow hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Cross currency swap

Cross currency swap

Cross currency swap

Cross currency swap

Cross currency swap

Cross currency swap

Cross currency swap

Cross currency swap

Diesel swap agreements

Diesel swap agreements

Diesel swap agreements

Diesel swap agreements

Diesel swap agreements

Diesel swap agreements

Diesel swap agreements

Diesel swap agreements

Diesel swap agreements

Diesel swap agreements

Tax Effects

Tax Effects

Tax Effects

Tax Effects

Tax Effects

Tax Effects

Tax Effects

Tax Effects

Change In Fair Value

Change In Fair Value

Settlements of cash flow hedges

Settlements of cash flow hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Change In Fair Value

Change In Fair Value

Settlements of cash flow hedges

Settlements of cash flow hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Change In Fair Value

Change In Fair Value

Settlements of cash flow hedges

Settlements of cash flow hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance, beginning of period

$1,674

($5,416)

'

'

'

'

'

'

$1,920

($9,574)

'

'

'

'

'

'

$468

$653

$1,101

$1,241

'

'

'

'

'

'

($899)

$2,917

'

'

'

'

'

'

Cash flow hedge instruments, net of tax

'

'

2,099

1,665

-9,598

-5,124

'

'

'

'

3,230

2,646

-14,766

-8,030

'

'

'

'

'

'

0

-84

0

147

'

'

'

'

-1,131

-897

5,168

2,759

'

'

Reclassifications into earnings when underlying hedged transactions impacted earnings:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reclassified to Interest expense

368

-110

'

'

'

'

'

'

566

-170

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-198

60

'

'

'

'

'

'

Reclassified to Other, net

'

'

'

'

'

'

9,230

5,330

'

'

'

'

'

'

14,200

8,200

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-4,970

-2,870

Reclassified to Production costs

'

'

'

'

'

'

-120

-132

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-185

-203

'

'

'

'

'

'

65

71

Balance, end of period

$3,653

($3,787)

'

'

'

'

'

'

$5,150

($6,928)

'

'

'

'

'

'

$468

$653

$1,101

$1,241

'

'

'

'

'

'

($1,965)

$2,040

'

'

'

'

'

'

Segment_Information_Detail

Segment Information (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'
Revenue - Note 10	$85,525	$49,190	'
Depreciation and amortization	13,631	3,846	'
Income (loss) from operations	7,131	16,481	'
Interest income	13	126	'
Interest expense - Note 9	-5,787	-5,129	'
Other, net - Note 11	14	-479	'
Income before income taxes	1,371	10,999	'
Total assets	1,480,281	1,321,165	1,512,601
Capital expenditures	43,424	156,851	'
Hycroft Mine	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'
Revenue - Note 10	85,525	49,190	'
Depreciation and amortization	13,369	3,588	'
Income (loss) from operations	14,346	23,635	'
Interest income	5	4	'
Interest expense - Note 9	-1,924	-1,705	'
Other, net - Note 11	10	2	'
Income before income taxes	12,437	21,936	'
Total assets	1,401,941	1,081,664	'
Capital expenditures	43,424	156,802	'
Exploration	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'
Revenue - Note 10	0	0	'
Depreciation and amortization	0	0	'
Income (loss) from operations	-728	-987	'
Interest income	0	0	'
Interest expense - Note 9	0	0	'
Other, net - Note 11	0	0	'
Income before income taxes	-728	-987	'
Total assets	38,106	39,586	'
Capital expenditures	0	0	'
Corporate and Other	'	'	'
Segment Reporting, Revenue Reconciling Item [Line Items]	'	'	'
Revenue - Note 10	0	0	'
Depreciation and amortization	262	258	'
Income (loss) from operations	-6,487	-6,167	'
Interest income	8	122	'
Interest expense - Note 9	-3,863	-3,424	'
Other, net - Note 11	4	-481	'
Income before income taxes	-10,338	-9,950	'
Total assets	40,234	199,915	'
Capital expenditures	$0	$49	'

Commitments_and_Contingencies_

Commitments and Contingencies - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Line Items]	'
Temporary housing space rental and service agreement, payments due in 2014	$1,300,000
Temporary housing space rental and service agreement, payments due in 2015	3,600,000
Temporary housing space rental and service agreement, payments due in 2016	200,000
Net profit royalty payable percentage	4.00%
Payments for where mining occurs on the leased claims	120,000
Lease obligation to be paid in the future	7,600,000
Royalty payments	2,100,000
Mining lease, payment due in 2014	300,000
Mining lease, payment due in 2015	1,700,000
Mining lease, payment due in 2016	2,100,000
Mining lease, payment due in 2017	1,400,000
Capital Addition Purchase Commitments	'
Commitments and Contingencies Disclosure [Line Items]	'
Purchase commitment, amount	$44,600,000

Subsequent_Events_Details

Subsequent Events (Details) (Performance and Incentive Pay Plan, Subsequent Event)	1-May-14
Performance and Incentive Pay Plan | Subsequent Event	'
Subsequent Event [Line Items]	'
Number of shares of common stock available for grant	4,000,000