Coeur Mining (CDE) 10-Q 25 Apr 18 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 23, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	COEUR MINING, INC.
Entity Central Index Key	215,466
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Trading Symbol	CDE
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		186,116,975
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Revenues		$ 163,267	$ 185,554
COSTS AND EXPENSES
Costs applicable to sales	[1]	99,340	114,490
Amortization		30,777	38,693
General and administrative		8,804	10,125
Exploration		6,683	5,252
Pre-development, reclamation, and other		4,225	3,837
Total costs and expenses		149,829	172,397
OTHER INCOME (EXPENSE), NET
Fair value adjustments, net, pretax		4,987	(1,200)
Interest expense, net of capitalized interest		(5,965)	(3,579)
Other, net		180	20,799
Total other income (expense), net		(798)	16,020
Total		12,640	29,177
Income and mining tax benefit (expense)		(11,949)	(10,878)
Income (loss) from continuing operations		691	18,299
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		550	364
Net income (loss)		1,241	18,663
OTHER COMPREHENSIVE INCOME (LOSS), Net of Tax:
Unrealized gain (loss) on debt and equity securities		(278)	(2,182)
Reclassification adjustments for impairment of equity securities		0	121
Reclassification adjustments for realized (gain) loss on sale of equity securities		0	1,471
Other comprehensive income (loss)		(278)	(590)
COMPREHENSIVE INCOME (LOSS)		$ 963	$ 18,073
Basic EPS
Income (Loss) from Continuing Operations, Per Basic Share		$ 0.004	$ 0.10
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share		0.003	0
Earnings Per Share, Basic		0.007	0.10
Diluted EPS
Income (Loss) from Continuing Operations, Per Diluted Share		0.004	0.10
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share		0.003	0
Earnings Per Share, Diluted		$ 0.007	$ 0.10
[1]	Excludes amortization.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Cash Flows [Abstract]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 172,101	$ 170,457
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	1,241	18,663
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(550)	(364)
Adjustments:
Amortization	30,777	38,693
Accretion	3,318	2,240
Deferred income taxes	454	2,584
Fair value adjustments, net	(4,987)	1,200
Stock-based compensation	2,786	3,307
Gain on sale of the Joaquin project	0	(21,138)
Foreign exchange and other	401	(1,895)
Changes in operating assets and liabilities:
Receivables	(1,691)	5,680
Prepaid expenses and other current assets	(5,635)	(4,906)
Inventories	(8,708)	15,171
Accounts payable and accrued liabilities	(1,865)	(15,299)
CASH PROVIDED BY OPERATING ACTIVITIES	15,541	43,936
Cash Provided by (Used in) Operating Activities, Discontinued Operations	(2,690)	11,335
Net Cash Provided by (Used in) Operating Activities	12,851	55,271
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(42,345)	(23,591)
Proceeds from the sale of assets	60	15,019
Purchase of short term investments and equity securities	(361)	(1,016)
Sales and maturities of short-term investments	1,619	10,020
Other	(65)	(14)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	(41,092)	418
Cash Provided by (Used in) Investing Activities, Discontinued Operations	(28,470)	(388)
CASH USED IN INVESTING ACTIVITIES	(69,562)	30
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from Issuance of Unsecured Debt	15,000	0
Payments on long-term debt, capital leases, and associated costs	(18,449)	(3,206)
Other	(4,606)	(3,247)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	(8,055)	(6,453)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	(22)	(20)
Net Cash Provided by (Used in) Financing Activities	(8,077)	(6,473)
Effect of exchange rate changes on cash and cash equivalents	557	555
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(64,231)	49,383
Cash and cash equivalents at end of period	159,643	160,636
Net Cash Provided by (Used in) Discontinued Operations	(32,930)	5,527
CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingNetCashProvidedByUsedInDiscontinuedOperationsAssetsHeldForSale	(31,301)	43,856
Net subsidiary payments to parent company	$ 1,748	$ 5,400

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
CURRENT ASSETS
Cash and cash equivalents	$ 159,643	$ 192,032
Receivables	35,864	19,069
Inventory	61,723	58,230
Ore on leach pads	75,584	73,752
Prepaid expenses and other	18,203	15,053
Disposal Group, Including Discontinued Operation, Assets, Current	0	91,421
Current assets	351,017	449,557
NON-CURRENT ASSETS
Property, plant and equipment, net	266,157	254,737
Mining properties, net	843,821	829,569
Ore on leach pads, noncurrent	67,430	65,393
Restricted assets	22,116	20,847
Equity and debt securities	37,317	34,837
Receivables	55,428	28,750
Other	18,649	17,485
TOTAL ASSETS	1,661,935	1,701,175
CURRENT LIABILITIES
Accounts payable	44,864	48,592
Accrued liabilities and other	105,149	94,930
Debt	17,040	30,753
Reclamation	3,777	3,777
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	50,677
Current liabilities	170,830	228,729
NON-CURRENT LIABILITIES
Debt	396,984	380,569
Reclamation	119,154	117,055
Deferred tax liabilities	105,224	105,148
Other long-term liabilities	55,432	54,697
Non-current liabilities	676,794	657,469
STOCKHOLDERS' EQUITY
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 186,176,237 issued and outstanding at March 31, 2018 and 185,637,724 at December 31, 2017	1,862	1,856
Additional paid-in capital	3,355,710	3,357,345
Accumulated other comprehensive income (loss)	(363)	2,519
Accumulated deficit	(2,542,898)	(2,546,743)
Stockholders' equity	814,311	814,977
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 1,661,935	$ 1,701,175

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
STOCKHOLDERS' EQUITY
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	186,176,237	185,637,724

Condensed Consolidated Statemen

Condensed Consolidated Statements of Changes in Stockholders' Equity - 3 months ended Mar. 31, 2018 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balances at Dec. 31, 2017	$ 814,977	$ 1,856	$ 3,357,345	$ (2,546,743)	$ 2,519
Balances, in shares at Dec. 31, 2017		185,638
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,241			1,241
Other comprehensive income (loss)	(278)				(278)
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		538
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	(1,629)	$ 6	(1,635)
Balances at Mar. 31, 2018	814,311	$ 1,862	$ 3,355,710	(2,542,898)	(363)
Balances, in shares at Mar. 31, 2018		186,176
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification of unrealized gain (loss) on equity securities for ASU 2016-01	$ 0			$ 2,604	$ (2,604)

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2018
Basis of Presentation [Abstract]
Basis of Presentation	The interim condensed consolidated financial statements of Coeur Mining, Inc. and its subsidiaries (collectively, “Coeur” or the “Company”) are unaudited. In the opinion of management, all adjustments and disclosures necessary for the fair presentation of these interim statements have been included. The results reported in these interim statements may not be indicative of the results which will be reported for the year ending December 31, 2018. The condensed consolidated December 31, 2017 balance sheet data was derived from audited consolidated financial statements. Accordingly, these unaudited interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (the “2017 10-K”).

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Revenue Recognition On January 1, 2018, the Company adopted the updated revenue guidance applicable under ASC 606 - Revenue from Contracts with Customers. The new guidance creates a five-step framework to determine revenue recognition: 1. Identify the contract with the customer 2. Identify the performance obligations 3. Determine the transaction price 4. Allocate the transaction price to the performance obligations 5. Recognize revenue when (or as) the entity satisfies a performance obligation The Company produces doré and concentrate that is shipped to third-party refiners and smelters, respectively, for processing. The Company enters into contracts to sell its metal to various third-party customers which may include the refiners and smelters that process the doré and concentrate. The Company’s performance obligation in these transactions is generally the transfer of metal to the customer. In the case of doré shipments, the company generally sells refined metal at market prices agreed upon by both parties. The Company also has the right, but not the obligation, to sell a portion of the anticipated refined metal in advance of being fully refined. When the Company sells refined metal or advanced metal, the performance obligation is satisfied when the metal is delivered to the customer. Revenue and Costs Applicable to Sales are recorded on a gross basis under these contracts at the time the performance obligation is satisfied. Under the Company’s concentrate sales contracts with third-party smelters, metal prices are set on a specified future quotational period, typically one to three months, after the shipment date based on market prices. When the Company sells gold concentrate to the third-party smelters, the performance obligation is satisfied when the concentrate is loaded onto the third-party shipping vessel. The contracts, in general, provide for provisional payment based upon provisional assays and historical metal prices. Final settlement is based on the applicable price for the specified future quotational period and generally occurs three to six months after shipment. The Company’s provisionally priced sales contain an embedded derivative that is required to be separated from the host contract for accounting purposes. The host contract is the receivable from the sale of concentrates measured at the forward price at the time of sale. The embedded derivative does not qualify for hedge accounting and is adjusted to fair value through revenue each period until the date of final metal settlement. The Company also sells concentrate under off-take agreements to third-party customers that are responsible for arranging the smelting of the concentrate. Prices are can either be fixed or based on a quotational period. The quotational period varies by contract, but is generally a one-month period following the shipment of the concentrate. The performance obligation is satisfied when the concentrate is loaded onto the third-party shipping vessel. The off-take agreement allows for the Company to sell concentrate in advance of shipment and results in the customer taking ownership of the concentrate prior to shipment. For doré and off-take sales, the Company may incur a finance charge related to advance sales that is not considered significant and, as such, is not considered a separate performance obligation. In addition, the Company has elected to treat freight costs as a fulfillment cost under ASC 606 and not as a separate performance obligation. The Company’s streaming agreement with a subsidiary of Franco-Nevada Corporation (“Franco-Nevada”) commenced in 2016 with a $20.0 million deposit paid by Franco-Nevada in exchange for the right and obligation to purchase 50% of a portion of Palmarejo gold production at the lesser of $800 or market price per ounce. Because there is no minimum obligation associated with this deposit, it is not considered financing, and each shipment is considered to be a separate performance obligation. The streaming agreement represents a contract liability under ASC 606, which requires the Company to ratably recognize a portion of the deposit as revenue for each gold ounce delivered to Franco-Nevada. The following table presents a rollforward of the Franco-Nevada contract liability balance: Three months ended March 31, In thousands 2018 2017 Opening Balance $ 14,883 $ 19,281 Revenue Recognized (543 ) $ (1,629 ) Closing Balance $ 14,340 $ 17,652 Recent Accounting Standards In January 2017, the FASB issued ASU 2017-01, “ Business Combinations (Topic 805) - Clarifying the Definition of a Business, ” which clarifies the definition of a business to assist entities in the evaluation of acquisitions and disposals of assets or businesses. These changes became effective for the Company’s fiscal year beginning January 1, 2018 and did not materially impact the Company’s consolidated net income, financial position or cash flows. In November 2016, the FASB issued ASU 2016-18, “ Statement of Cash Flows (Topic 230) - Restricted Cash, ” which will require entities to show the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. These changes became effective for the Company’s fiscal year beginning January 1, 2018 and resulted in the inclusion of restricted cash equivalents on the Consolidated Statements of Cash Flows of $12.5 million at March 31, 2018 and $9.8 million at March 31, 2017. In August 2016, the FASB issued ASU 2016-15, “ Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments, ” which provides guidance on presentation and classification of certain cash receipts and payments in the statement of cash flows. These changes became effective for the Company’s fiscal year beginning January 1, 2018 and did not materially impact the Company’s consolidated net income, financial position or cash flows. In February 2016, the FASB issued ASU 2016-02, “ Leases, ” which will require lessees to recognize assets and liabilities for the rights and obligations created by most leases on the balance sheet. These changes become effective for the Company’s fiscal year beginning January 1, 2019. Modified retrospective adoption for all leases existing at, or entered into after, the date of initial application, is required with an option to use certain transition relief. The Company is currently evaluating the potential impact of implementing these changes on the Company’s consolidated financial position, results of operations, and cash flows. In January 2016, the FASB issued ASU 2016-01, “ Recognition and Measurement of Financial Assets and Financial Liabilities, ” which requires entities to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. This new guidance also updates certain disclosure requirements for these investments. These changes became effective for the Company’s fiscal year beginning January 1, 2018, and resulted in a reclassification of $2.6 million of unrealized holding gains and losses and deferred income taxes related to investments in equity securities from Accumulated other comprehensive income (loss) to Accumulated deficit in the Consolidated Balance Sheets on that date. Unrealized holding gains and losses related to investments in equity securities are now recognized in Fair value adjustments, net in the Consolidated Statements of Comprehensive Income (Loss). In July 2015, the FASB issued ASU 2015-11, “ Simplifying the Measurement of Inventory, ” which provides a revised, simpler measurement for inventory to be measured at the lower of cost and net realizable value. These changes became effective for the Company’s fiscal year beginning January 1, 2018 and did not materially impact the Company’s consolidated net income, financial position or cash flows. In May 2014, the FASB issued ASU 2014-09, “ Revenue from Contracts with Customers ” , which has subsequently been amended several times, to update revenue guidance under the newly-created ASC 606. The new standard provides a five-step approach to be applied to all contracts with customers and also requires expanded disclosures about revenue recognition. These changes became effective under the modified retrospective method of adoption for the Company’s fiscal year beginning January 1, 2018 and did not materially impact the Company’s consolidated net income, financial position or cash flows.

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
SEGMENT REPORTING	SEGMENT REPORTING The Company’s operating segments include the Palmarejo complex, and the Rochester, Kensington, Wharf and Silvertip mines. Except for the Silvertip mine, which was acquired in the fourth quarter of 2017, all operating segments are engaged in the discovery, mining, and production of gold and/or silver. Silvertip is engaged in the discovery, mining, and production of silver, zinc and lead. Other includes the La Preciosa project, other mineral interests, strategic equity investments, corporate office, elimination of intersegment transactions, and other items necessary to reconcile to consolidated amounts. The Company determined that the disposition of Empresa Minera Manquiri S.A., a Bolivian Sociedad anonima (“Manquiri”), which operates the San Bartolomé mine, represents a strategic shift to a North America-focused mining portfolio and has a significant effect on the entity's results and operations; therefore, the results of operations are presented as discontinued operations for all periods presented. Financial information relating to the Company’s segments is as follows (in thousands): Three months ended March 31, 2018 Palmarejo Rochester Silvertip Kensington Wharf Other Total Revenue Metal sales $ 70,037 $ 33,497 $ — $ 36,300 $ 23,433 $ — $ 163,267 Costs and Expenses Costs applicable to sales (1) 31,096 24,305 — 28,630 15,309 — 99,340 Amortization 16,325 4,831 — 6,717 2,657 247 30,777 Exploration 3,970 33 — 1,590 10 1,080 6,683 Other operating expenses 731 884 20 321 665 10,408 13,029 Other income (expense) Fair value adjustments, net — — — — — 4,987 4,987 Interest expense, net (119 ) (98 ) (410 ) (243 ) (12 ) (5,083 ) (5,965 ) Other, net (2,144 ) (40 ) 362 (37 ) (21 ) 2,060 180 Income and mining tax (expense) benefit (12,443 ) (371 ) 835 — (639 ) 669 (11,949 ) Income (loss) from continuing operations $ 3,209 $ 2,935 $ 767 $ (1,238 ) $ 4,120 $ (9,102 ) $ 691 Income (loss) from discontinued operations $ — $ — $ — $ — $ — $ 550 $ 550 Segment assets (2) $ 377,146 $ 245,881 $ 361,212 $ 215,244 $ 104,805 $ 119,922 $ 1,424,210 Capital expenditures $ 9,293 $ 2,633 $ 18,629 $ 11,364 $ 344 $ 82 $ 42,345 (1) Excludes amortization (2) Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interests Three months ended March 31, 2017 Palmarejo Rochester Kensington Wharf Other Total Revenue Metal sales $ 77,704 $ 38,979 $ 37,964 $ 30,251 $ 656 $ 185,554 Costs and Expenses Costs applicable to sales (1) 43,001 26,439 28,443 16,320 287 114,490 Amortization 20,150 5,816 9,178 3,111 438 38,693 Exploration 1,631 144 839 — 2,638 5,252 Other operating expenses 301 810 345 619 11,887 13,962 Other income (expense) Fair value adjustments, net — (1,200 ) — — — (1,200 ) Interest expense, net (125 ) (117 ) (40 ) (19 ) (3,278 ) (3,579 ) Other, net 1,794 (32 ) (808 ) 89 19,756 20,799 Income and mining tax (expense) benefit (12,245 ) (498 ) — (957 ) 2,822 (10,878 ) Income (loss) from continuing operations $ 2,045 $ 3,923 $ (1,689 ) $ 9,314 $ 4,706 $ 18,299 Income (loss) from discontinued operations $ — $ — $ — $ — $ 364 $ 364 Segment assets (2) $ 401,623 $ 227,526 $ 204,987 $ 104,673 $ 84,402 $ 1,023,211 Capital expenditures $ 6,230 $ 10,568 $ 5,521 $ 887 $ 385 $ 23,591 (1) Excludes amortization (2) Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interests Assets March 31, 2018 December 31, 2017 Total assets for reportable segments $ 1,424,210 $ 1,344,553 Cash and cash equivalents 159,643 192,032 Other assets 78,082 164,590 Total consolidated assets $ 1,661,935 $ 1,701,175 Geographic Information Long-Lived Assets March 31, 2018 December 31, 2017 Mexico $ 364,047 $ 370,188 United States 384,578 377,768 Canada 350,556 331,440 Other 10,797 4,910 Total $ 1,109,978 $ 1,084,306 Revenue Three months ended March 31, 2018 2017 United States $ 93,230 $ 107,194 Mexico 70,037 77,704 Australia — 656 Total $ 163,267 $ 185,554

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION The Company has stock incentive plans for executives and eligible employees. Stock awards include performance shares, restricted stock and stock options. Stock-based compensation expense for the three months ended March 31, 2018 and 2017 was $2.8 million and $3.3 million , respectively. At March 31, 2018 , there was $4.8 million of unrecognized stock-based compensation cost which is expected to be recognized over a weighted-average remaining vesting period of 1.4 years. The following table summarizes the grants awarded during the three months ended March 31, 2018 : Grant date Restricted stock Grant date fair value of restricted stock Stock options Grant date fair value of stock options Performance shares Grant date fair value of performance shares March 5, 2018 31,887 $ 7.84 — $ — — $ — The following options and stock appreciation rights were exercisable during the three months ended March 31, 2018 : Award Type Number of Exercised Units Weighted Average Exercised Price Number of Exercisable Units Weighted Average Stock options 93,920 $ 1.81 397,651 $ 14.39 Stock appreciation rights — $ — 42,152 $ 14.14

Reclamation

Reclamation	3 Months Ended
	Mar. 31, 2018
Asset Retirement Obligation Disclosure [Abstract]
RECLAMATION	RECLAMATION Reclamation and mine closure costs are based principally on legal and regulatory requirements. Management estimates costs associated with reclamation of mining properties. On an ongoing basis, management evaluates its estimates and assumptions, and future expenditures could differ from current estimates. Changes to the Company’s asset retirement obligations for operating sites are as follows: Three months ended March 31, In thousands 2018 2017 Asset retirement obligation - Beginning $ 118,799 $ 86,754 Accretion 2,545 2,064 Settlements (496 ) (421 ) Asset retirement obligation - Ending $ 120,848 $ 88,397 The Company has accrued $2.1 million and $2.0 million at March 31, 2018 and December 31, 2017 , respectively, for reclamation liabilities related to former mining activities, which are included in Reclamation.

Other, Net

Other, Net	3 Months Ended
	Mar. 31, 2018
Other Income and Expenses [Abstract]
OTHER, NET	OTHER, NET Other, net consists of the following: Three months ended March 31, In thousands 2018 2017 Foreign exchange gain (loss) $ (670 ) $ 1,206 Loss on sale of assets and investments (574 ) (2,066 ) Gain on sale of the Joaquin project — 21,138 Other 1,424 521 Other, net $ 180 $ 20,799

Retirement Savings Plan

Retirement Savings Plan	3 Months Ended
	Mar. 31, 2018
Postemployment Benefits [Abstract]
RETIREMENT SAVINGS PLAN	RETIREMENT SAVINGS PLAN The Company has a 401(k) retirement savings plan that covers all eligible U.S. employees. Eligible employees may elect to contribute up to 75% of base salary, subject to ERISA limitations. The Company generally makes matching contributions equal to the employee’s contribution up to 4% of the employee’s salary. The Company may also provide an additional contribution based on an eligible employee’s salary. Total plan expenses recognized for the three months ended March 31, 2018 and 2017 were $1.2 million and $2.1 million . In addition, the Company has a deferred compensation plan for employees whose benefits under the 401(k) plan are limited by federal regulations.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
NET INCOME (LOSS) PER SHARE	NET INCOME (LOSS) PER SHARE Basic net income (loss) per share is computed by dividing net income (loss) available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share reflects the potential dilution that would occur if securities or other contracts to issue common stock were exercised or converted into common stock. For the three months ended March 31, 2018 and 2017 , 496,064 and 1,368,685 common stock equivalents, respectively, related to equity-based awards were not included in the diluted earnings per share calculation as the shares would be antidilutive. Three months ended March 31, In thousands except per share amounts 2018 2017 Net income (loss) available to common stockholders: Income (loss) from continuing operations $ 691 $ 18,299 Income (loss) from discontinued operations 550 364 $ 1,241 $ 18,663 Weighted average shares: Basic 184,367 178,898 Effect of stock-based compensation plans 3,254 4,170 Diluted 187,621 183,068 Basic income (loss) per share: Income (loss) from continuing operations $ 0.00 $ 0.10 Income (loss) from discontinued operations 0.00 0.00 Basic (1) $ 0.01 $ 0.10 Diluted income (loss) per share: Income (loss) from continuing operations $ 0.00 $ 0.10 Income (loss) from discontinued operations 0.00 0.00 Diluted (1) $ 0.01 $ 0.10 (1) Due to rounding, the sum of net income per share from continuing operations and discontinued operations may not equal net income per share.

Income and Mining Taxes

Income and Mining Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
INCOME AND MINING TAXES	INCOME AND MINING TAXES The following table summarizes the components of Income and mining tax (expense) benefit for the three months ended March 31, 2018 and 2017 by significant jurisdiction: Three months ended March 31, 2018 2017 In thousands Income (loss) before tax Tax (expense) benefit Income (loss) before tax Tax (expense) benefit United States $ 1,187 $ 517 $ 20,653 $ (1,827 ) Argentina 254 10 (328 ) 1,124 Mexico 13,126 (13,222 ) 8,650 (9,923 ) Other jurisdictions (1,927 ) 746 202 (252 ) $ 12,640 $ (11,949 ) $ 29,177 $ (10,878 ) The Company’s effective income and mining tax rate is a function of the combined effective tax rates and foreign exchange rates in the jurisdictions in which it operates. Variations in the jurisdictional mix of income and loss and foreign exchange rates result in significant fluctuations in the consolidated effective tax rate, along with mining taxes, uncertain tax positions, and a full valuation allowance on deferred tax assets related to losses in the United States and certain foreign jurisdictions. Fluctuations in foreign exchange rates on deferred tax balances increased income and mining tax expense by $3.6 million and $5.6 million for the three months ended March 31, 2018 and 2017, respectively, predominately due to the strengthening of the Mexican Peso. Additionally, favorable operating results at Palmarejo contributed to higher income and mining tax expense in Mexico. A valuation allowance is provided for deferred tax assets for which it is more likely than not that the related tax benefits will not be realized. The Company analyzes its deferred tax assets and, if it is determined that the Company will not realize all or a portion of its deferred tax assets, it will record or increase a valuation allowance. Conversely, if it is determined that the Company will ultimately be more likely than not able to realize all or a portion of the related benefits for which a valuation allowance has been provided, all or a portion of the related valuation allowance will be reduced. There are a number of factors that impact the Company’s ability to realize its deferred tax assets. For additional information, please see the sections titled “Risk Factors” set forth in the 2017 10-K. The Company or one of its subsidiaries files income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. The statute of limitations remains open from 2014 forward for the U.S. federal jurisdiction and from 2008 forward for certain other foreign jurisdictions. As a result of statutes of limitation that will begin to expire within the next twelve months in various jurisdictions and possible settlements of audit-related issues with taxing authorities in various jurisdictions with respect to which none of the issues are individually significant, the Company believes that it is reasonably possible that the total amount of its net unrecognized income tax benefits will decrease between $1.5 million and $2.5 million in the next twelve months. At March 31, 2018 and December 31, 2017, the Company had $3.9 million and $4.3 million of total gross unrecognized tax benefits, respectively that, if recognized, would positively impact the Company’s effective income tax rate. The Company’s continuing practice is to recognize potential interest and/or penalties related to unrecognized tax benefits as part of its income tax expense. At March 31, 2018 and December 31, 2017, the amount of accrued income-tax-related interest and penalties was $4.2 million and $4.8 million , respectively.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS Three months ended March 31, In thousands 2018 2017 Rochester royalty obligation $ — $ (1,200 ) Unrealized gain (loss) on equity securities 4,842 — Zinc options 145 — Fair value adjustments, net $ 4,987 $ (1,200 ) Accounting standards establish 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), secondary priority to quoted prices in inactive markets or observable inputs (Level 2), and the lowest priority to unobservable inputs (Level 3). The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis (at least annually) by level within the fair value hierarchy. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement: Fair Value at March 31, 2018 In thousands Total Level 1 Level 2 Level 3 Assets: Equity and debt securities $ 37,317 $ 31,003 $ — $ 6,314 Other derivative instruments, net 552 — 552 — $ 37,869 $ 31,003 $ 552 $ 6,314 Liabilities: Silvertip contingent consideration $ 48,289 $ — $ — $ 48,289 Other derivative instruments, net 125 — 125 — $ 48,414 $ — $ 125 $ 48,289 Fair Value at December 31, 2017 In thousands Total Level 1 Level 2 Level 3 Assets: Equity and debt securities $ 34,837 $ 27,946 $ — $ 6,891 Other derivative instruments, net 251 — 251 — $ 35,088 $ 27,946 $ 251 $ 6,891 Liabilities: Silvertip contingent consideration $ 47,965 $ — $ — $ 47,965 Other derivative instruments, net 222 — 222 — $ 48,187 $ — $ 222 $ 47,965 The Company’s investments in equity securities are recorded at fair market value in the financial statements based primarily on quoted market prices. Such instruments are classified within Level 1 of the fair value hierarchy. Quoted market prices are not available for certain debt securities; these securities are valued using pricing models, which require the use of observable and unobservable inputs, and are classified within Level 3 of the fair value hierarchy. The Company’s other derivative instruments, net, include concentrate and certain doré sales contracts, as well as zinc hedges, which are valued using pricing models with inputs derived from observable market data, including contractual terms, forward market prices, yield curves, credit spreads, and other unobservable inputs. The model inputs can generally be verified and do not involve significant management judgment. Such instruments are classified within Level 2 of the fair value hierarchy. In July 2017, the Company sold the Endeavor Silver Stream and remaining non-core royalties to Metalla Royalty & Streaming Ltd. (“Metalla”) for total consideration of $13.0 million , including a $6.7 million convertible debenture. The convertible debenture matures June 30, 2027 , bears interest at a rate of 5% payable semi-annually, and is convertible into Metalla shares in connection with future equity financings or asset acquisitions by Metalla at the then-current price to maintain the Company’s approximate 19.9% ownership. The fair value of the convertible debenture is estimated based on observable market data including yield curves and credit spreads. Therefore, the Company classifies the convertible debenture in Level 3 of the fair value hierarchy. In October 2017, the Company acquired the Silvertip mine from shareholders of JDS Silver Holdings Ltd.The consideration for the Silvertip mine includes two $25.0 million contingent payments, which are payable in cash and common stock upon reaching a future permitting milestone in 2018 and resource declaration milestone in 2019, respectively. The fair value of the Silvertip contingent consideration is estimated based on an estimated discount rate of 2.5% for the contingent permitting payment and 2.9% for the contingent resource declaration payment and is classified within Level 3 of the fair value hierarchy. No assets or liabilities were transferred between fair value levels in the three months ended March 31, 2018. The following tables present the changes in the fair value of the Company's Level 3 financial assets and liabilities for the three months ended March 31, 2018: Three Months Ended March 31, 2018 In thousands Balance at the beginning of the period Revaluation Settlements Accretion Balance at the end of the period Assets: Equity and debt securities $ 6,891 $ (278 ) $ (299 ) $ — $ 6,314 Liabilities: Silvertip contingent consideration $ 47,965 $ — $ — $ 324 $ 48,289 The fair value of financial assets and liabilities carried at book value in the financial statements at March 31, 2018 and December 31, 2017 is presented in the following table: March 31, 2018 In thousands Book Value Fair Value Level 1 Level 2 Level 3 Assets: Manquiri Notes Receivable $ 39,887 $ 39,887 $ — $ — $ 39,887 Liabilities: 5.875% Senior Notes due 2024 (1) $ 245,280 $ 244,520 $ — $ 244,520 $ — Revolving Credit Facility (2) $ 115,000 $ 115,000 $ — $ 115,000 $ — (1) Net of unamortized debt issuance costs of $4.7 million . (2) Unamortized debt issuance costs of $1.8 million included in Other Non-Current Assets . December 31, 2017 In thousands Book Value Fair Value Level 1 Level 2 Level 3 Liabilities: 5.875% Senior Notes due 2024 (1) $ 245,088 $ 243,913 $ — $ 243,913 $ — Revolving Credit Facility (2) $ 100,000 $ 100,000 $ — $ 100,000 $ — (1) Net of unamortized debt issuance costs of $4.9 million . (2) Unamortized debt issuance costs of $1.9 million included in Other Non-Current Assets . The fair value of the Manquiri Notes Receivable approximates book value due to no significant change in interest rates since the sale of Manquiri; see Note 21 -- Discontinued Operations for additional detail. The fair value of the 5.875% Senior Notes due 2024 (the “2024 Senior Notes”) was estimated using quoted market prices. The fair value of the Revolving Credit Facility approximates book value as the liability is secured, has a variable interest rate, and lacks significant credit concerns.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS	DERIVATIVE FINANCIAL INSTRUMENTS Provisional Silver and Gold Sales The Company enters into sales contracts with third-party smelters and refiners which, in some cases, provide for a provisional payment based upon preliminary assays and quoted metal prices. The provisionally priced sales contracts contain an embedded derivative that is required to be separated from the host contract for accounting purposes. The host contract is the receivable recorded at the forward price at the time of sale. The embedded derivatives do not qualify for hedge accounting and are marked to market through earnings each period until final settlement. Changes in silver and gold prices resulted in provisional pricing mark-to-market gains of $0.3 million and $1.2 million in the three months ended March 31, 2018 and 2017 , respectively. Zinc Options At March 31, 2018 , the Company has outstanding Asian (or average value) put and call option contracts in net-zero-cost collar arrangements on a volume of 300 metric tons of zinc per month commencing in April 2018 and ending in December 2018. The weighted average strike prices on the put and call contracts are $3,000 and $4,050 per metric ton, respectively. The contracts are generally net cash settled and, if the price of zinc at the time of the expiration is between the put and call prices, would expire at no cost to the Company. At March 31, 2018 , the fair market value of the put and call zero cost collar contracts was a net asset of $0.1 million . During the three months ended March 31, 2018 , the Company had recorded unrealized gains of $0.1 million related to outstanding options which were included in Fair value adjustments, net . At March 31, 2017, the Company had no outstanding options contracts. At March 31, 2018 , the Company had the following derivative instruments that settle as follows: In thousands except average prices and notional ounces 2018 Thereafter Provisional silver sales contracts $ 831 $ — Average silver price per ounce $ 16.66 $ — Notional ounces 49,853 — Provisional gold sales contracts $ 59,332 $ — Average gold price per ounce $ 1,317 $ — Notional ounces 45,051 — Zinc put options purchased $ 8,100 $ — Average zinc strike price per metric ton $ 3,000 $ — Notional metric tons 2,700 — Zinc call options sold $ (10,935 ) $ — Average zinc strike price per metric ton $ 4,050 $ — Notional metric tons 2,700 — The following summarizes the classification of the fair value of the derivative instruments: March 31, 2018 In thousands Prepaid expenses and other Accrued liabilities and other Current portion of royalty obligation Non-current portion of royalty obligation Provisional silver and gold sales contracts $ 407 $ 125 $ — $ — Zinc options 145 — — — $ 552 $ 125 $ — $ — December 31, 2017 In thousands Prepaid expenses and other Accrued liabilities and other Current portion of royalty obligation Non-current portion of royalty obligation Provisional silver and gold sales contracts $ 251 $ 222 $ — $ — The following represent mark-to-market gains (losses) on derivative instruments for the three months ended March 31, 2018 and 2017 , respectively (in thousands): Three months ended March 31, Financial statement line Derivative 2018 2017 Revenue Provisional silver and gold sales contracts $ 253 $ 1,212 Fair value adjustments, net Zinc options 145 — $ 398 $ 1,212 Credit Risk The credit risk exposure related to any derivative instrument is limited to the unrealized gains, if any, on outstanding contracts based on current market prices. To reduce counter-party credit exposure, the Company enters into contracts with institutions management deems credit-worthy and limits credit exposure to each institution. The Company does not anticipate non-performance by any of its counterparties.

Acquisitions (Notes)

Acquisitions (Notes)	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS In October 2017, the Company completed the acquisition of JDS Silver Holdings Ltd. and its wholly-owned subsidiary JDS Silver Inc. (together, “JDS Silver”) which, following the closing of the acquisition, were amalgamated with a subsidiary of Coeur to form Coeur Silvertip Holdings Ltd., which owns the underground Silvertip silver-zinc-lead mine in northern British Columbia, Canada. JDS Silver was purchased for approximately $153.2 million in cash and $36.0 million in Coeur common stock. In addition, the Company recorded $47.7 million of contingent consideration payable in cash and common stock upon reaching future permitting and resource declaration milestones. The cash consideration was funded with $100.0 million of borrowing under the Facility (as defined in Note 18 -- Debt) and cash on hand. Upon closing, the Company issued approximately 4.2 million Coeur shares to former shareholders of JDS Silver Holdings Ltd. The acquisition aligns with the Company’s strategic shift to a North America-focused mining portfolio. The transaction was accounted for as a business combination, which requires that assets acquired and liabilities assumed be recognized at their respective fair values at the acquisition date. The acquisition is not significant to the Company’s results of operations, individually or in the aggregate, because the Silvertip mine is in pre-production. As there are no significant differences from the Company’s historical results of operations, no pro forma financial information is provided. The allocation of purchase price to the acquired assets and liabilities assumed is preliminary as of March 31, 2018 and subsequent adjustments may result in changes to mineral interest and other carrying amounts initially assigned based on the preliminary fair value analysis. The principal remaining items to be valued are property, plant and equipment and mining properties, which will be finalized as management continues to review the valuation methodologies used to estimate the fair value of these assets. The preliminary purchase price allocation is as follows (in thousands): Common shares issued (4,191,679 at $8.59) $ 36,007 Cash 153,194 Contingent consideration 47,705 Total purchase price (1) $ 236,906 Assets: Receivables and other assets $ 6,828 Property, plant, and equipment 29,943 Mining properties, net 288,464 325,235 Liabilities: Accounts payable and accrued liabilities 13,077 Asset retirement obligation 6,982 Debt and capital lease 20,149 Deferred income taxes 48,121 88,329 Net assets acquired $ 236,906 (1) Purchase price has been adjusted for restricted cash acquired due to the adoption of ASU 2016-01.

Investments

Investments	3 Months Ended
	Mar. 31, 2018
Investment in Marketable Securities [Abstract]
INVESTMENTS	INVESTMENTS Equity and Debt Securities The Company makes strategic investments in equity and debt securities of silver and gold exploration and development companies. At March 31, 2018 In thousands Cost Gross Unrealized Losses Gross Unrealized Gains Estimated Fair Value Equity Securities Metalla Royalty & Streaming Ltd. $ 6,294 $ — $ 2,837 $ 9,131 Corvus Gold Inc. 3,582 — 6,844 10,426 Almaden Minerals, Ltd. 2,067 (727 ) — 1,340 Northern Empire Resources Corp. 4,489 — 2,999 7,488 Rockhaven Resources, Ltd. 2,064 (596 ) — 1,468 Other 1,190 (155 ) 115 1,150 Equity securities $ 19,686 $ (1,478 ) $ 12,795 $ 31,003 Debt Securities Metalla Royalty & Streaming Ltd. $ 6,677 $ (363 ) $ — $ 6,314 Equity and debt securities $ 26,363 $ (1,841 ) $ 12,795 $ 37,317 At December 31, 2017 In thousands Cost Gross Unrealized Losses Gross Unrealized Gains Estimated Fair Value Equity Securities Metalla Royalty & Streaming Ltd. $ 6,294 $ — $ 1,354 $ 7,648 Corvus Gold Inc. 3,582 — 4,518 8,100 Almaden Minerals, Ltd. 3,125 (235 ) — 2,890 Northern Empire Resources Corp. 4,489 — 1,077 5,566 Rockhaven Resources, Ltd. 2,064 (193 ) — 1,871 Kootenay Silver, Inc. 738 — 1 739 Other 1,479 (453 ) 405 1,431 Equity securities $ 21,771 $ (881 ) $ 7,355 $ 28,245 Debt Securities Metalla Royalty & Streaming Ltd. $ 6,677 $ (85 ) $ — $ 6,592 Equity and debt securities $ 28,448 $ (966 ) $ 7,355 $ 34,837 The following table presents the disaggregated gain (loss) on equity securities recognized in Income (loss) from continuing operations on the Condensed Consolidated Statements of Comprehensive Income: Three months ended March 31, In thousands 2018 2017 Net gain (loss) $ 4,529 $ (1,471 ) Less: Realized (gain) loss 313 1,471 Unrealized gain (loss) $ 4,842 $ — The Company performs a quarterly assessment on its debt securities with unrealized losses to determine if the securities are other than temporarily impaired. The following table summarizes unrealized losses on debt securities for which other-than-temporary impairments have not been recognized and the fair values of those securities, aggregated by the length of time the individual securities have been in a continuous unrealized loss position, at March 31, 2018 : Less than twelve months Twelve months or more Total In thousands Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Debt securities 363 6,314 — — 363 6,314 Restricted Assets The Company, under the terms of its self-insurance and bonding agreements with certain banks, lending institutions and regulatory agencies, is required to collateralize certain portions of its asset retirement obligations. The Company has collateralized these obligations by assigning certificates of deposit that have maturity dates ranging from three months to a year to the applicable institutions or agencies. At March 31, 2018 and December 31, 2017, the Company held certificates of deposit and cash equivalents under these agreements of $22.1 million and $17.6 million , respectively. The ultimate timing of the release of the collateralized amounts is dependent on the timing and closure of each mine and repayment of the obligation. In order to release the collateral, the Company must seek approval from certain government agencies responsible for monitoring the mine closure status. Collateral could also be released to the extent the Company is able to secure alternative financial assurance satisfactory to the regulatory agencies. The Company believes the collateral will remain in place beyond a twelve-month period and has therefore classified these investments as long-term.

Receivables

Receivables	3 Months Ended
	Mar. 31, 2018
Receivables [Abstract]
RECEIVABLES	RECEIVABLES Receivables consist of the following: In thousands March 31, 2018 December 31, 2017 Current receivables: Trade receivables $ 3,840 $ 5,883 Income tax receivable 48 7 Value added tax receivable 14,482 10,982 Manquiri note receivable 15,840 — Other 1,654 2,197 $ 35,864 $ 19,069 Non-current receivables: Value added tax receivable $ 31,381 $ 28,750 Manquiri note receivable 24,047 — 55,428 28,750 Total receivables $ 91,292 $ 47,819 The increase in receivables is due to the recognition of Manquiri notes receivable as consideration for the sale of San Bartolomé. See Note 21 -- Discontinued Operations for additional detail.

Inventory and Ore on Leach Pads

Inventory and Ore on Leach Pads	3 Months Ended
	Mar. 31, 2018
Inventory Disclosure [Abstract]
INVENTORY AND ORE ON LEACH PADS	INVENTORY AND ORE ON LEACH PADS Inventory consists of the following: In thousands March 31, 2018 December 31, 2017 Inventory: Concentrate $ 11,062 $ 6,831 Precious metals 17,783 18,803 Supplies 32,878 32,596 61,723 58,230 Ore on leach pads: Current 75,584 73,752 Non-current 67,430 65,393 143,014 139,145 Total inventory and ore on leach pads $ 204,737 $ 197,375

Property, Plant and Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consist of the following: In thousands March 31, 2018 December 31, 2017 Land $ 9,107 $ 9,408 Facilities and equipment 559,276 554,160 Assets under capital leases 88,720 82,753 657,103 646,321 Accumulated amortization (1) (456,374 ) (448,001 ) 200,729 198,320 Construction in progress 65,428 56,417 Property, plant and equipment, net $ 266,157 $ 254,737 (1) Includes $29.0 million and $28.2 million of accumulated amortization related to assets under capital leases at March 31, 2018 and December 31, 2017, respectively.

Mining Properties

Mining Properties	3 Months Ended
	Mar. 31, 2018
Mining Properties [Abstract]
MINING PROPERTIES	MINING PROPERTIES Mining properties consist of the following (in thousands): March 31, 2018 Palmarejo Rochester Silvertip Kensington Wharf La Preciosa Other Total Mine development $ 220,141 $ 194,390 $ 70,626 $ 307,996 $ 40,688 $ — $ — $ 833,841 Accumulated amortization (151,102 ) (146,245 ) — (182,555 ) (16,456 ) — — (496,358 ) 69,039 48,145 70,626 125,441 24,232 — — 337,483 Mineral interests 629,303 — 245,116 — 45,837 49,085 7,102 976,443 Accumulated amortization (445,327 ) — — — (24,655 ) — — (123 ) (470,105 ) 183,976 — 245,116 — 21,182 49,085 6,979 506,338 Mining properties, net $ 253,015 $ 48,145 $ 315,742 $ 125,441 $ 45,414 $ 49,085 $ 6,979 $ 843,821 December 31, 2017 Palmarejo Rochester Silvertip Kensington Wharf La Preciosa Total Mine development $ 214,383 $ 193,881 $ 57,214 $ 298,749 $ 40,618 $ — $ 804,845 Accumulated amortization (146,598 ) (144,390 ) — (178,632 ) (15,748 ) — (485,368 ) 67,785 49,491 57,214 120,117 24,870 — 319,477 Mineral interests 629,303 — 245,116 — 45,837 49,085 969,341 Accumulated amortization (435,215 ) — — — (24,034 ) — — (459,249 ) 194,088 — 245,116 — 21,803 49,085 510,092 Mining properties, net $ 261,873 $ 49,491 $ 302,330 $ 120,117 $ 46,673 $ 49,085 $ 829,569 In February 2018, the Company completed the sale of Manquiri, which operates the San Bartolomé mine. Pursuant to the terms of the agreement, the Company received, among other things, a 2.0% net smelter returns royalty. Coeur estimates the value of this net smelter returns royalty to be approximately $7.1 million , which is included in Other. See Note 21 -- Discontinued Operations for additional detail. The Silvertip mine is expected to reach commercial production in the second quarter of 2018. The determination of commercial production (or ready for intended use) is based on many factors requiring the exercise of judgment. Factors that are considered when determining if intended use has been achieved include achievement of continuous production or other output, mineral recoveries at or near expected levels, the absence of routine take-downs of the plant to address commissioning issues and fix problems, and the release of the commissioning team. Prior to commercial production, costs related to mine development, construction of long-lived assets, and inventory are capitalized; all other costs are expensed in the period incurred. Amortization of mining properties will commence when the mine has been determined to be in commercial production.

Debt

Debt	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
DEBT	DEBT March 31, 2018 December 31, 2017 In thousands Current Non-Current Current Non-Current 2024 Senior Notes, net (1) $ — $ 245,280 $ — $ 245,088 Revolving Credit Facility (2) — 115,000 — 100,000 Capital lease obligations 17,040 36,704 16,559 35,481 Silvertip debt obligation — — 14,194 — $ 17,040 $ 396,984 $ 30,753 $ 380,569 (1) Net of unamortized debt issuance costs of $4.7 million and $4.9 million at March 31, 2018 and December 31, 2017 , respectively. (2) Unamortized debt issuance costs of $1.8 million and $1.9 million at March 31, 2018 and December 31, 2017 , respectively, included in Other Non-Current Assets . 5.875% Senior Notes due 2024 In May 2017, the Company completed an offering of $250.0 million in aggregate principal amount of 2024 Senior Notes in a private placement conducted pursuant to Rule 144A and Regulation S under the Securities Act of 1933, as amended, for net proceeds of approximately $245.0 million . The 2024 Senior Notes bear interest at a rate of 5.875% per year from the date of issuance. Interest on the 2024 Senior Notes is payable semi-annually in arrears on June 1 and December 1 of each year. The 2024 Senior Notes will mature on June 1, 2024 and are fully and unconditionally guaranteed by the Guarantors. Revolving Credit Facility In September 2017, the Company, as borrower, and certain subsidiaries of the Company, as guarantors, entered into a Credit Agreement (the “Credit Agreement”) with Bank of America, N.A, Royal Bank of Canada, Bank of Montreal, and the Bank of Nova Scotia. The Credit Agreement provides for a $200.0 million senior secured revolving credit facility (the “Facility”), which may be increased by up to $50.0 million in incremental loans and commitments subject to the terms of the Credit Agreement. The Facility has a term of four years. Loans under the Facility will bear interest at a rate equal to either a base rate plus a margin ranging from 1.00% to 1.75% or an adjusted LIBOR rate plus a margin ranging from 2.00% to 2.75% , as selected by the Company, in each case, with such margin determined in accordance with a pricing grid based upon the Company’s consolidated net leverage ratio as of the end of the applicable period. At March 31, 2018 , the Company had $73.0 million available under the Facility; $15.0 million was drawn to repay the third-party debt obligation at Silvertip, $100.0 million was drawn to partially fund the Silvertip acquisition in 2017, and $12.0 million currently supports outstanding letters of credit. At March 31, 2018 , the interest rate of the Facility was 4.1% . Silvertip Debt Obligation The Company assumed an existing third-party debt obligation as part of the Silvertip acquisition. In February 2018, the Company voluntarily terminated and repaid the remaining debt obligation of $ 12.6 million . Capital Lease Obligations From time to time, the Company acquires mining equipment under capital lease agreements. In the three months ended March 31, 2018 , the Company entered into new lease financing arrangements primarily for mining equipment at Rochester and Kensington. All capital lease obligations are recorded, upon lease inception, at the present value of future minimum lease payments. Interest Expense Three months ended March 31, In thousands 2018 2017 2024 Senior Notes $ 3,673 $ — 2021 Senior Notes — 3,504 Revolving Credit Facility 1,152 — Capital lease obligations 524 306 Amortization of debt issuance costs 325 166 Accretion of debt premium — (43 ) Accretion of Silvertip contingent consideration 324 — Other debt obligations 107 9 Capitalized interest (140 ) (363 ) Total interest expense, net of capitalized interest $ 5,965 $ 3,579

Supplemental Guarantor Informat

Supplemental Guarantor Information	3 Months Ended
	Mar. 31, 2018
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
SUPPLEMENTAL GUARANTOR INFORMATION	SUPPLEMENTAL GUARANTOR INFORMATION The following Consolidating Financial Statements are presented to satisfy disclosure requirements of Rule 3-10 of Regulation S-X resulting from the guarantees by Coeur Alaska, Inc., Coeur Explorations, Inc., Coeur Rochester, Inc., Coeur South America Corp., Wharf Resources (U.S.A.), Inc. and its subsidiaries, and Coeur Capital, Inc. (collectively, the “Subsidiary Guarantors”) of the 2024 Senior Notes. The following schedules present Consolidating Financial Statements of (a) Coeur, the parent company; (b) the Subsidiary Guarantors; and (c) certain wholly-owned domestic and foreign subsidiaries of the Company (collectively, the “Non-Guarantor Subsidiaries”). Each of the Subsidiary Guarantors is 100% owned by Coeur and the guarantees are full and unconditional and joint and several obligations. There are no restrictions on the ability of Coeur to obtain funds from the Subsidiary Guarantors by dividend or loan. CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS) THREE MONTHS ENDED MARCH 31, 2018 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Revenue $ — $ 93,230 $ 70,037 $ — $ 163,267 COSTS AND EXPENSES Costs applicable to sales (1) — 68,245 31,095 — 99,340 Amortization 246 14,205 16,326 — 30,777 General and administrative 8,797 3 4 — 8,804 Exploration 459 2,245 3,979 — 6,683 Pre-development, reclamation, and other 406 1,947 1,872 — 4,225 Total costs and expenses 9,908 86,645 53,276 — 149,829 OTHER INCOME (EXPENSE), NET Fair value adjustments, net 5,279 (292 ) — — 4,987 Other, net 4,142 (137 ) (106 ) (3,719 ) 180 Interest expense, net of capitalized interest (5,083 ) (353 ) (4,248 ) 3,719 (5,965 ) Total other income (expense), net 4,338 (782 ) (4,354 ) — (798 ) Income (loss) from continuing operations before income and mining taxes (5,570 ) 5,803 12,407 — 12,640 Income and mining tax (expense) benefit 1,638 (1,120 ) (12,467 ) — (11,949 ) Income (loss) from continuing operations (3,932 ) 4,683 (60 ) — 691 Equity income (loss) in consolidated subsidiaries 4,164 (38 ) (170 ) (3,956 ) — Income (loss) from discontinued operations 1,009 (284 ) (175 ) — 550 NET INCOME (LOSS) $ 1,241 $ 4,361 $ (405 ) $ (3,956 ) $ 1,241 OTHER COMPREHENSIVE INCOME (LOSS), net of tax: Unrealized gain (loss) on debt securities, net of tax (278 ) — — — (278 ) COMPREHENSIVE INCOME (LOSS) $ 963 $ 4,361 $ (405 ) $ (3,956 ) $ 963 (1) Excludes amortization. CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS) THREE MONTHS ENDED MARCH 31, 2017 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Revenue $ — $ 107,194 $ 78,360 $ — $ 185,554 COSTS AND EXPENSES Costs applicable to sales (1) — 71,202 43,288 — 114,490 Amortization 324 18,104 20,265 — 38,693 General and administrative 10,106 24 (5 ) — 10,125 Exploration 336 1,727 3,189 — 5,252 Pre-development, reclamation, and other 175 1,781 1,881 — 3,837 Total costs and expenses 10,941 92,838 68,618 — 172,397 OTHER INCOME (EXPENSE), NET Fair value adjustments, net — (1,200 ) — — (1,200 ) Other, net 15,222 5,458 1,533 (1,414 ) 20,799 Interest expense, net of capitalized interest (3,279 ) (175 ) (1,539 ) 1,414 (3,579 ) Total other income (expense), net 11,943 4,083 (6 ) — 16,020 Income (loss) from continuing operations before income and mining taxes 1,002 18,439 9,736 — 29,177 Income and mining tax (expense) benefit 1,588 (2,434 ) (10,032 ) — (10,878 ) Income (loss) from continuing operations 2,590 16,005 (296 ) — 18,299 Equity income (loss) in consolidated subsidiaries 16,073 70 (67 ) (16,076 ) — Income (loss) from discontinued operations — — 364 — 364 NET INCOME (LOSS) $ 18,663 $ 16,075 $ 1 $ (16,076 ) $ 18,663 OTHER COMPREHENSIVE INCOME (LOSS), net of tax: Unrealized gain (loss) on debt and equity securities, net of tax (2,182 ) (279 ) — 279 (2,182 ) Reclassification adjustments for impairment of equity securities, net of tax 121 121 — (121 ) 121 Reclassification adjustments for realized loss on sale of equity securities, net of tax 1,471 (369 ) — 369 1,471 Other comprehensive income (loss) (590 ) (527 ) — 527 (590 ) COMPREHENSIVE INCOME (LOSS) $ 18,073 $ 15,548 $ 1 $ (15,549 ) $ 18,073 (1) Excludes amortization. CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS THREE MONTHS ENDED MARCH 31, 2018 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Cash provided by (used in) activities of continuing operations $ (7,938 ) $ 5,395 $ 22,040 $ (3,956 ) 15,541 Cash provided by (used in) activities of discontinued operations — — (2,690 ) — (2,690 ) CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES (7,938 ) 5,395 19,350 (3,956 ) 12,851 CASH FLOWS FROM INVESTING ACTIVITIES Capital expenditures (83 ) (14,341 ) (27,921 ) — (42,345 ) Proceeds from the sale of assets — 60 — — 60 Purchase of investments (361 ) — — — (361 ) Sales of investments 1,067 552 — — 1,619 Other — — (65 ) — (65 ) Investments in consolidated subsidiaries (4,162 ) 37 169 3,956 — Cash provided by (used in) activities of continuing operations (3,539 ) (13,692 ) (27,817 ) 3,956 (41,092 ) Cash provided by (used in) activities of discontinued operations — — (28,470 ) — (28,470 ) CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES (3,539 ) (13,692 ) (56,287 ) 3,956 (69,562 ) CASH FLOWS FROM FINANCING ACTIVITIES: Issuance of notes and bank borrowings, net of issuance costs 15,000 — 52,577 — — 15,000 Payments on debt, capital leases, and associated costs — (2,395 ) (16,054 ) — (18,449 ) Net intercompany financing activity (20,381 ) (10,946 ) 31,327 — — Other (4,606 ) — — — (4,606 ) Cash provided by (used in) activities of continuing operations (9,987 ) (13,341 ) 15,273 — (8,055 ) Cash provided by (used in) activities of discontinued operations — — (22 ) — (22 ) CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES (9,987 ) (13,341 ) 15,251 — (8,077 ) Effect of exchange rate changes on cash and cash equivalents — 2 555 — 557 Less net cash provided by (used in) discontinued operations — — (32,930 ) — (32,930 ) NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH (21,464 ) (21,636 ) 11,799 — (31,301 ) Cash, cash equivalents and restricted cash at beginning of period 56,033 52,239 95,130 — 203,402 Cash, cash equivalents and restricted cash at end of period $ 34,569 $ 30,603 $ 106,929 $ — $ 172,101 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS THREE MONTHS ENDED MARCH 31, 2017 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Cash provided by (used in) activities of continuing operations $ (4,815 ) $ 17,183 $ 47,644 $ (16,076 ) 43,936 Cash provided by (used in) activities of discontinued operations — — 11,335 — 11,335 CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES (4,815 ) 17,183 58,979 (16,076 ) 55,271 CASH FLOWS FROM INVESTING ACTIVITIES Capital expenditures (319 ) (16,975 ) (6,297 ) — (23,591 ) Proceeds from the sale of assets 8,916 6,151 (48 ) — 15,019 Purchase of investments (1,016 ) — — — (1,016 ) Sales of investments 9,157 863 — — 10,020 Other 46 — (60 ) — (14 ) Investments in consolidated subsidiaries (12,454 ) (70 ) 67 12,457 — Cash provided by (used in) activities of continuing operations 4,330 (10,031 ) (6,338 ) 12,457 418 Cash provided by (used in) activities of discontinued operations — — (388 ) — (388 ) CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES 4,330 (10,031 ) (6,726 ) 12,457 30 CASH FLOWS FROM FINANCING ACTIVITIES: Payments on debt, capital leases, and associated costs — (1,874 ) (1,332 ) — (3,206 ) Net intercompany financing activity 14,318 (9,325 ) (8,612 ) 3,619 — Other (3,247 ) — — — (3,247 ) Cash provided by (used in) activities of continuing operations 11,071 (11,199 ) (9,944 ) 3,619 (6,453 ) Cash provided by (used in) activities of discontinued operations — — (20 ) — (20 ) CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES 11,071 (11,199 ) (9,964 ) 3,619 (6,473 ) Effect of exchange rate changes on cash and cash equivalents — — 555 — 555 Less net cash provided by (used in) discontinued operations — — 5,527 — 5,527 NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH 10,586 (4,047 ) 37,317 — 43,856 Cash, cash equivalents and restricted cash at beginning of period 66,337 50,023 10,241 — 126,601 Cash, cash equivalents and restricted cash at end of period $ 76,923 $ 45,976 $ 47,558 $ — $ 170,457 CONDENSED CONSOLIDATING BALANCE SHEET MARCH 31, 2018 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated ASSETS CURRENT ASSETS Cash and cash equivalents $ 22,111 $ 30,603 $ 106,929 $ — $ 159,643 Receivables 15,895 5,084 14,885 — 35,864 Ore on leach pads — 75,584 — — 75,584 Inventory — 31,512 30,211 — 61,723 Prepaid expenses and other 8,892 3,193 6,118 — 18,203 46,898 145,976 158,143 — 351,017 NON-CURRENT ASSETS Property, plant and equipment, net 3,141 165,578 97,438 — 266,157 Mining properties, net 6,980 219,000 617,841 — 843,821 Ore on leach pads — 67,430 — — 67,430 Restricted assets 14,352 227 7,537 — 22,116 Equity and debt securities 36,772 545 — — 37,317 Receivables 24,047 — 31,381 — 55,428 Net investment in subsidiaries 423,448 332 694 (424,474 ) — Other 317,146 11,820 3,431 (313,748 ) 18,649 TOTAL ASSETS $ 872,784 $ 610,908 $ 916,465 $ (738,222 ) $ 1,661,935 LIABILITIES AND STOCKHOLDERS’ EQUITY CURRENT LIABILITIES Accounts payable $ 3,419 $ 21,634 $ 19,811 $ — $ 44,864 Other accrued liabilities 16,643 12,059 76,447 — 105,149 Debt — 9,977 7,063 — 17,040 Reclamation — 2,313 1,464 — 3,777 20,062 45,983 104,785 — 170,830 NON-CURRENT LIABILITIES Debt 360,280 31,116 319,336 (313,748 ) 396,984 Reclamation — 83,392 35,762 — 119,154 Deferred tax liabilities 2,641 4,978 97,605 — 105,224 Other long-term liabilities 2,602 2,751 50,079 — 55,432 Intercompany payable (receivable) (327,111 ) 307,016 20,095 — — 38,412 429,253 522,877 (313,748 ) 676,794 STOCKHOLDERS’ EQUITY Common stock 1,862 19,630 195,020 (214,650 ) 1,862 Additional paid-in capital 3,355,710 145,024 1,882,610 (2,027,634 ) 3,355,710 Accumulated deficit (2,542,899 ) (28,982 ) (1,788,827 ) 1,817,810 (2,542,898 ) Accumulated other comprehensive income (loss) (363 ) — — — (363 ) 814,310 135,672 288,803 (424,474 ) 814,311 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 872,784 $ 610,908 $ 916,465 $ (738,222 ) $ 1,661,935 CONDENSED CONSOLIDATING BALANCE SHEET DECEMBER 31, 2017 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated ASSETS CURRENT ASSETS Cash and cash equivalents $ 44,662 $ 52,239 $ 95,131 $ — $ 192,032 Receivables 137 7,922 11,010 — 19,069 Ore on leach pads — 73,752 — — 73,752 Inventory — 29,769 28,461 — 58,230 Prepaid expenses and other 7,824 2,816 4,413 — 15,053 Assets held for sale — — 91,421 — 91,421 52,623 166,498 230,436 — 449,557 NON-CURRENT ASSETS Property, plant and equipment, net 4,007 161,487 89,243 — 254,737 Mining properties, net — 216,281 613,288 — 829,569 Ore on leach pads — 65,393 — — 65,393 Restricted assets 13,251 227 7,369 — 20,847 Equity and debt securities 33,569 1,268 — — 34,837 Receivables — — 28,750 — 28,750 Net investment in subsidiaries 422,074 223 (18 ) (422,279 ) — Other 320,335 11,040 2,854 (316,744 ) 17,485 TOTAL ASSETS $ 845,859 $ 622,417 $ 971,922 $ (739,023 ) $ 1,701,175 LIABILITIES AND STOCKHOLDERS’ EQUITY CURRENT LIABILITIES Accounts payable $ 3,607 $ 24,534 $ 20,451 $ — $ 48,592 Other accrued liabilities 13,205 19,262 62,463 — 94,930 Debt — 9,215 21,538 — 30,753 Reclamation — 2,313 1,464 — 3,777 Liabilities held for sale — — 50,677 — 50,677 16,812 55,324 156,593 — 228,729 NON-CURRENT LIABILITIES Debt 345,088 28,313 323,912 (316,744 ) 380,569 Reclamation — 82,021 35,034 — 117,055 Deferred tax liabilities 4,110 5,127 95,911 — 105,148 Other long-term liabilities 2,311 3,063 49,323 — 54,697 Intercompany payable (receivable) (337,439 ) 317,759 19,680 — — 14,070 436,283 523,860 (316,744 ) 657,469 STOCKHOLDERS’ EQUITY Common stock 1,856 19,630 195,020 (214,650 ) 1,856 Additional paid-in capital 3,357,345 149,194 1,885,046 (2,034,240 ) 3,357,345 Accumulated deficit (2,546,743 ) (34,551 ) (1,788,597 ) 1,823,148 (2,546,743 ) Accumulated other comprehensive income (loss) 2,519 (3,463 ) — 3,463 2,519 814,977 130,810 291,469 (422,279 ) 814,977 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 845,859 $ 622,417 $ 971,922 $ (739,023 ) $ 1,701,175

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Palmarejo Gold Stream Coeur Mexicana, S.A. de C.V. (“Coeur Mexicana”), a subsidiary of Coeur, sells 50% of Palmarejo gold production (excluding production from the Paramount properties acquired in 2015) to Franco-Nevada under a gold stream agreement for the lesser of $800 or spot price per ounce. In 2015, Coeur Mexicana received a $22.0 million deposit toward future deliveries under the gold stream agreement. In accordance with generally accepted accounting principles, although Coeur has satisfied its contractual obligation to repay the deposit to Franco-Nevada, the deposit is accounted for as deferred revenue and is recognized as revenue on a units of production basis as ounces are sold to Franco-Nevada. As of March 31, 2018, the remaining unamortized balance was $14.3 million . Silvertip Contingent Consideration A total of up to $50.0 million of contingent consideration, payable in cash and common stock, is payable in conjunction with the October 2017 Silvertip acquisition. The contingent consideration is based on the achievement of two milestones, which the Company has determined to be probable at March 31, 2018. The first milestone payment of $25.0 million is contingent upon receipt of a permit expansion for a sustained mining and milling rate of 1,000 tonnes per day. The permit application must be submitted to the British Columbia Ministry of Energy and Mining no later than June 2018. The second milestone payment of up to $25.0 million is contingent upon the amount of resource tonnes added as of December 31, 2019. The maximum payment of $25.0 million can be earned if the total resource reaches 3.7 million tonnes. The former JDS Silver Holdings Ltd. shareholders will receive $5.0 million for a total resource of at least 2.5 million tonnes and $5.0 million for every 0.3 million tonnes over 2.5 million tonnes up to 3.7 million tonnes.

Discontinued Operations (Notes)

Discontinued Operations (Notes)	3 Months Ended
	Mar. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Assets and Liabilities Held For Sale	In December 2017, the Company and certain of its subsidiaries entered into a definitive agreement (as amended, the “Agreement”) to sell all of the outstanding capital stock of Manquiri, which is the operator of the San Bartolomé mine and processing facility (the “Manquiri Divestiture”). On February 28, 2018, the Manquiri Divestiture was completed, and, in accordance with the Agreement, Manquiri was sold to Ag-Mining Investments, AB, a privately-held Swedish company owned by a group of individuals with extensive mining experience in Latin America. Coeur and its subsidiaries received the following consideration: • 2.0% net smelter returns royalty (the “NSR”) payable to Coeur on all metals processed through the San Bartolomé Mine’s processing facility, commencing immediately upon the closing of the Transaction, valued at $7.1 million . • Pre-closing value added tax refunds valued at $12.7 million that will be collected or received by Manquiri in the future will be paid to Coeur (net of collection costs). • Eighteen-month promissory notes valued at $26.9 million payable to Coeur and certain of its subsidiaries representing Manquiri’s cash and cash equivalents on the date of closing of the Manquiri Divestiture, and providing for repayment beginning in October 2018. • The Company recognized a liability of approximately $5.7 million for certain post-closing covenants, guaranties and indemnification obligations on the part of the Company pursuant to the Agreement The sale of Manquiri resulted in a gain of $1.5 million , which is included in Income (loss) from discontinued operations . The sale of Manquiri and San Bartolomé is expected to have a major effect on the Company's results and operations. Accordingly, San Bartolomé’s operations for the three months ended March 31, 2018 and 2017 are classified on the consolidated statements of operations and comprehensive income (loss) as Income (loss) from discontinued operations . The major classes of line items constituting the pretax profit or loss for the three months ended March 31, 2018 and 2017 are as follows: Three months ended March 31, 2018 2017 Revenue $ 12,346 $ 20,584 COSTS AND EXPENSES Costs applicable to sales (1) 12,269 18,222 Amortization — 1,411 General and administrative 41 8 Pre-development, reclamation, and other 265 744 OTHER INCOME (EXPENSE), NET Interest expense, net of capitalized interest (3 ) (6 ) Other, net (260 ) 340 Pretax profit (loss) on discontinued operations related to major classes of pretax profit (loss) (492 ) 533 Pretax gain on the disposal of the discontinued operation 1,525 — Total pretax gain or loss on discontinued operations 1,033 533 Income and mining tax (expense) benefit (483 ) (169 ) Income (loss) from discontinued operations $ 550 $ 364 (1) Excludes amortization. Net cash used in operating activities from San Bartolomé was $2.7 million for the three months ended March 31, 2018 compared to net cash provided by operating activities of $11.3 million for the three months ended March 31, 2017, respectively. Net cash used in investing activities from San Bartolomé were $28.5 million and $0.4 million for the three months ended March 31, 2018 and 2017, respectively.

Additional Balance Sheet Detail

Additional Balance Sheet Detail and Supplemental Cash Flow Information	3 Months Ended
	Mar. 31, 2018
Supplemental Cash Flow Information [Abstract]
Cash Flow, Supplemental Disclosures [Text Block]	ADDITIONAL BALANCE SHEET DETAIL AND SUPPLEMENTAL CASH FLOW INFORMATION Accrued liabilities and other consist of the following: March 31, 2018 December 31, 2017 Accrued salaries and wages $ 15,552 $ 26,559 Income and mining taxes 36,642 25,788 Silvertip contingent consideration 24,543 24,393 Accrued operating costs 17,174 12,323 Taxes other than income and mining 5,644 4,354 Accrued interest payable 5,594 1,513 Accrued liabilities and other $ 105,149 $ 94,930 The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the statement of financial position that sum to the total of the same such amounts shown in the statement of cash flows: March 31, 2018 March 31, 2017 Cash and cash equivalents $ 159,643 $ 160,636 Restricted cash equivalents 12,458 9,821 Total cash, cash equivalents and restricted cash shown in the statement of cash flows 172,101 170,457

Summary of Significant Accoun29

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Revenue Recognition, Policy	Revenue Recognition On January 1, 2018, the Company adopted the updated revenue guidance applicable under ASC 606 - Revenue from Contracts with Customers. The new guidance creates a five-step framework to determine revenue recognition: 1. Identify the contract with the customer 2. Identify the performance obligations 3. Determine the transaction price 4. Allocate the transaction price to the performance obligations 5. Recognize revenue when (or as) the entity satisfies a performance obligation The Company produces doré and concentrate that is shipped to third-party refiners and smelters, respectively, for processing. The Company enters into contracts to sell its metal to various third-party customers which may include the refiners and smelters that process the doré and concentrate. The Company’s performance obligation in these transactions is generally the transfer of metal to the customer. In the case of doré shipments, the company generally sells refined metal at market prices agreed upon by both parties. The Company also has the right, but not the obligation, to sell a portion of the anticipated refined metal in advance of being fully refined. When the Company sells refined metal or advanced metal, the performance obligation is satisfied when the metal is delivered to the customer. Revenue and Costs Applicable to Sales are recorded on a gross basis under these contracts at the time the performance obligation is satisfied. Under the Company’s concentrate sales contracts with third-party smelters, metal prices are set on a specified future quotational period, typically one to three months, after the shipment date based on market prices. When the Company sells gold concentrate to the third-party smelters, the performance obligation is satisfied when the concentrate is loaded onto the third-party shipping vessel. The contracts, in general, provide for provisional payment based upon provisional assays and historical metal prices. Final settlement is based on the applicable price for the specified future quotational period and generally occurs three to six months after shipment. The Company’s provisionally priced sales contain an embedded derivative that is required to be separated from the host contract for accounting purposes. The host contract is the receivable from the sale of concentrates measured at the forward price at the time of sale. The embedded derivative does not qualify for hedge accounting and is adjusted to fair value through revenue each period until the date of final metal settlement. The Company also sells concentrate under off-take agreements to third-party customers that are responsible for arranging the smelting of the concentrate. Prices are can either be fixed or based on a quotational period. The quotational period varies by contract, but is generally a one-month period following the shipment of the concentrate. The performance obligation is satisfied when the concentrate is loaded onto the third-party shipping vessel. The off-take agreement allows for the Company to sell concentrate in advance of shipment and results in the customer taking ownership of the concentrate prior to shipment. For doré and off-take sales, the Company may incur a finance charge related to advance sales that is not considered significant and, as such, is not considered a separate performance obligation. In addition, the Company has elected to treat freight costs as a fulfillment cost under ASC 606 and not as a separate performance obligation.
Recent Accounting Standards	Recent Accounting Standards In January 2017, the FASB issued ASU 2017-01, “ Business Combinations (Topic 805) - Clarifying the Definition of a Business, ” which clarifies the definition of a business to assist entities in the evaluation of acquisitions and disposals of assets or businesses. These changes became effective for the Company’s fiscal year beginning January 1, 2018 and did not materially impact the Company’s consolidated net income, financial position or cash flows. In November 2016, the FASB issued ASU 2016-18, “ Statement of Cash Flows (Topic 230) - Restricted Cash, ” which will require entities to show the changes in the total of cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. These changes became effective for the Company’s fiscal year beginning January 1, 2018 and resulted in the inclusion of restricted cash equivalents on the Consolidated Statements of Cash Flows of $12.5 million at March 31, 2018 and $9.8 million at March 31, 2017. In August 2016, the FASB issued ASU 2016-15, “ Statement of Cash Flows (Topic 230) - Classification of Certain Cash Receipts and Cash Payments, ” which provides guidance on presentation and classification of certain cash receipts and payments in the statement of cash flows. These changes became effective for the Company’s fiscal year beginning January 1, 2018 and did not materially impact the Company’s consolidated net income, financial position or cash flows. In February 2016, the FASB issued ASU 2016-02, “ Leases, ” which will require lessees to recognize assets and liabilities for the rights and obligations created by most leases on the balance sheet. These changes become effective for the Company’s fiscal year beginning January 1, 2019. Modified retrospective adoption for all leases existing at, or entered into after, the date of initial application, is required with an option to use certain transition relief. The Company is currently evaluating the potential impact of implementing these changes on the Company’s consolidated financial position, results of operations, and cash flows. In January 2016, the FASB issued ASU 2016-01, “ Recognition and Measurement of Financial Assets and Financial Liabilities, ” which requires entities to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value and recognize any changes in fair value in net income. This new guidance also updates certain disclosure requirements for these investments. These changes became effective for the Company’s fiscal year beginning January 1, 2018, and resulted in a reclassification of $2.6 million of unrealized holding gains and losses and deferred income taxes related to investments in equity securities from Accumulated other comprehensive income (loss) to Accumulated deficit in the Consolidated Balance Sheets on that date. Unrealized holding gains and losses related to investments in equity securities are now recognized in Fair value adjustments, net in the Consolidated Statements of Comprehensive Income (Loss). In July 2015, the FASB issued ASU 2015-11, “ Simplifying the Measurement of Inventory, ” which provides a revised, simpler measurement for inventory to be measured at the lower of cost and net realizable value. These changes became effective for the Company’s fiscal year beginning January 1, 2018 and did not materially impact the Company’s consolidated net income, financial position or cash flows. In May 2014, the FASB issued ASU 2014-09, “ Revenue from Contracts with Customers ” , which has subsequently been amended several times, to update revenue guidance under the newly-created ASC 606. The new standard provides a five-step approach to be applied to all contracts with customers and also requires expanded disclosures about revenue recognition. These changes became effective under the modified retrospective method of adoption for the Company’s fiscal year beginning January 1, 2018 and did not materially impact the Company’s consolidated net income, financial position or cash flows.

Mining Properties Mining Proper

Mining Properties Mining Properties (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Capitalization of Internal Costs, Policy [Policy Text Block]	The determination of commercial production (or ready for intended use) is based on many factors requiring the exercise of judgment. Factors that are considered when determining if intended use has been achieved include achievement of continuous production or other output, mineral recoveries at or near expected levels, the absence of routine take-downs of the plant to address commissioning issues and fix problems, and the release of the commissioning team. Prior to commercial production, costs related to mine development, construction of long-lived assets, and inventory are capitalized; all other costs are expensed in the period incurred. Amortization of mining properties will commence when the mine has been determined to be in commercial production.

Summary of Significant Accoun31

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Summary of Contract Liability	The following table presents a rollforward of the Franco-Nevada contract liability balance: Three months ended March 31, In thousands 2018 2017 Opening Balance $ 14,883 $ 19,281 Revenue Recognized (543 ) $ (1,629 ) Closing Balance $ 14,340 $ 17,652

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Financial information relating to the reporting segments	Financial information relating to the Company’s segments is as follows (in thousands): Three months ended March 31, 2018 Palmarejo Rochester Silvertip Kensington Wharf Other Total Revenue Metal sales $ 70,037 $ 33,497 $ — $ 36,300 $ 23,433 $ — $ 163,267 Costs and Expenses Costs applicable to sales (1) 31,096 24,305 — 28,630 15,309 — 99,340 Amortization 16,325 4,831 — 6,717 2,657 247 30,777 Exploration 3,970 33 — 1,590 10 1,080 6,683 Other operating expenses 731 884 20 321 665 10,408 13,029 Other income (expense) Fair value adjustments, net — — — — — 4,987 4,987 Interest expense, net (119 ) (98 ) (410 ) (243 ) (12 ) (5,083 ) (5,965 ) Other, net (2,144 ) (40 ) 362 (37 ) (21 ) 2,060 180 Income and mining tax (expense) benefit (12,443 ) (371 ) 835 — (639 ) 669 (11,949 ) Income (loss) from continuing operations $ 3,209 $ 2,935 $ 767 $ (1,238 ) $ 4,120 $ (9,102 ) $ 691 Income (loss) from discontinued operations $ — $ — $ — $ — $ — $ 550 $ 550 Segment assets (2) $ 377,146 $ 245,881 $ 361,212 $ 215,244 $ 104,805 $ 119,922 $ 1,424,210 Capital expenditures $ 9,293 $ 2,633 $ 18,629 $ 11,364 $ 344 $ 82 $ 42,345 (1) Excludes amortization (2) Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interests Three months ended March 31, 2017 Palmarejo Rochester Kensington Wharf Other Total Revenue Metal sales $ 77,704 $ 38,979 $ 37,964 $ 30,251 $ 656 $ 185,554 Costs and Expenses Costs applicable to sales (1) 43,001 26,439 28,443 16,320 287 114,490 Amortization 20,150 5,816 9,178 3,111 438 38,693 Exploration 1,631 144 839 — 2,638 5,252 Other operating expenses 301 810 345 619 11,887 13,962 Other income (expense) Fair value adjustments, net — (1,200 ) — — — (1,200 ) Interest expense, net (125 ) (117 ) (40 ) (19 ) (3,278 ) (3,579 ) Other, net 1,794 (32 ) (808 ) 89 19,756 20,799 Income and mining tax (expense) benefit (12,245 ) (498 ) — (957 ) 2,822 (10,878 ) Income (loss) from continuing operations $ 2,045 $ 3,923 $ (1,689 ) $ 9,314 $ 4,706 $ 18,299 Income (loss) from discontinued operations $ — $ — $ — $ — $ 364 $ 364 Segment assets (2) $ 401,623 $ 227,526 $ 204,987 $ 104,673 $ 84,402 $ 1,023,211 Capital expenditures $ 6,230 $ 10,568 $ 5,521 $ 887 $ 385 $ 23,591 (1) Excludes amortization (2) Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interests Assets March 31, 2018 December 31, 2017 Total assets for reportable segments $ 1,424,210 $ 1,344,553 Cash and cash equivalents 159,643 192,032 Other assets 78,082 164,590 Total consolidated assets $ 1,661,935 $ 1,701,175
Consolidated Assets	Assets March 31, 2018 December 31, 2017 Total assets for reportable segments $ 1,424,210 $ 1,344,553 Cash and cash equivalents 159,643 192,032 Other assets 78,082 164,590 Total consolidated assets $ 1,661,935 $ 1,701,175
Long Lived Assets by Country	Geographic Information Long-Lived Assets March 31, 2018 December 31, 2017 Mexico $ 364,047 $ 370,188 United States 384,578 377,768 Canada 350,556 331,440 Other 10,797 4,910 Total $ 1,109,978 $ 1,084,306
Revenue by Country	Revenue Three months ended March 31, 2018 2017 United States $ 93,230 $ 107,194 Mexico 70,037 77,704 Australia — 656 Total $ 163,267 $ 185,554

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Stock-based Compensation, Stock Options and Stock Appreciation Rights Award Activity	The following table summarizes the grants awarded during the three months ended March 31, 2018 : Grant date Restricted stock Grant date fair value of restricted stock Stock options Grant date fair value of stock options Performance shares Grant date fair value of performance shares March 5, 2018 31,887 $ 7.84 — $ — — $ — The following options and stock appreciation rights were exercisable during the three months ended March 31, 2018 : Award Type Number of Exercised Units Weighted Average Exercised Price Number of Exercisable Units Weighted Average Stock options 93,920 $ 1.81 397,651 $ 14.39 Stock appreciation rights — $ — 42,152 $ 14.14

Reclamation (Tables)

Reclamation (Tables)	3 Months Ended
	Mar. 31, 2018
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligation	Changes to the Company’s asset retirement obligations for operating sites are as follows: Three months ended March 31, In thousands 2018 2017 Asset retirement obligation - Beginning $ 118,799 $ 86,754 Accretion 2,545 2,064 Settlements (496 ) (421 ) Asset retirement obligation - Ending $ 120,848 $ 88,397

Other, Net (Tables)

Other, Net (Tables)	3 Months Ended
	Mar. 31, 2018
Other Income and Expenses [Abstract]
Schedule of Other Nonoperating Income (Expense)	Other, net consists of the following: Three months ended March 31, In thousands 2018 2017 Foreign exchange gain (loss) $ (670 ) $ 1,206 Loss on sale of assets and investments (574 ) (2,066 ) Gain on sale of the Joaquin project — 21,138 Other 1,424 521 Other, net $ 180 $ 20,799

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Three months ended March 31, In thousands except per share amounts 2018 2017 Net income (loss) available to common stockholders: Income (loss) from continuing operations $ 691 $ 18,299 Income (loss) from discontinued operations 550 364 $ 1,241 $ 18,663 Weighted average shares: Basic 184,367 178,898 Effect of stock-based compensation plans 3,254 4,170 Diluted 187,621 183,068 Basic income (loss) per share: Income (loss) from continuing operations $ 0.00 $ 0.10 Income (loss) from discontinued operations 0.00 0.00 Basic (1) $ 0.01 $ 0.10 Diluted income (loss) per share: Income (loss) from continuing operations $ 0.00 $ 0.10 Income (loss) from discontinued operations 0.00 0.00 Diluted (1) $ 0.01 $ 0.10

Income and Mining Taxes (Tables

Income and Mining Taxes (Tables)	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The following table summarizes the components of Income and mining tax (expense) benefit for the three months ended March 31, 2018 and 2017 by significant jurisdiction: Three months ended March 31, 2018 2017 In thousands Income (loss) before tax Tax (expense) benefit Income (loss) before tax Tax (expense) benefit United States $ 1,187 $ 517 $ 20,653 $ (1,827 ) Argentina 254 10 (328 ) 1,124 Mexico 13,126 (13,222 ) 8,650 (9,923 ) Other jurisdictions (1,927 ) 746 202 (252 ) $ 12,640 $ (11,949 ) $ 29,177 $ (10,878 )

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value Adjustments to Comprehensive income (Loss)	Three months ended March 31, In thousands 2018 2017 Rochester royalty obligation $ — $ (1,200 ) Unrealized gain (loss) on equity securities 4,842 — Zinc options 145 — Fair value adjustments, net $ 4,987 $ (1,200 )
Financial assets and liabilities measured at fair value on recurring basis	The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis (at least annually) by level within the fair value hierarchy. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement: Fair Value at March 31, 2018 In thousands Total Level 1 Level 2 Level 3 Assets: Equity and debt securities $ 37,317 $ 31,003 $ — $ 6,314 Other derivative instruments, net 552 — 552 — $ 37,869 $ 31,003 $ 552 $ 6,314 Liabilities: Silvertip contingent consideration $ 48,289 $ — $ — $ 48,289 Other derivative instruments, net 125 — 125 — $ 48,414 $ — $ 125 $ 48,289 Fair Value at December 31, 2017 In thousands Total Level 1 Level 2 Level 3 Assets: Equity and debt securities $ 34,837 $ 27,946 $ — $ 6,891 Other derivative instruments, net 251 — 251 — $ 35,088 $ 27,946 $ 251 $ 6,891 Liabilities: Silvertip contingent consideration $ 47,965 $ — $ — $ 47,965 Other derivative instruments, net 222 — 222 — $ 48,187 $ — $ 222 $ 47,965
Changes in the fair value of the Company's Level 3 financial liabilities	The following tables present the changes in the fair value of the Company's Level 3 financial assets and liabilities for the three months ended March 31, 2018: Three Months Ended March 31, 2018 In thousands Balance at the beginning of the period Revaluation Settlements Accretion Balance at the end of the period Assets: Equity and debt securities $ 6,891 $ (278 ) $ (299 ) $ — $ 6,314 Liabilities: Silvertip contingent consideration $ 47,965 $ — $ — $ 324 $ 48,289
Financial Assets and Liabilities not Measured at Fair Value	The fair value of financial assets and liabilities carried at book value in the financial statements at March 31, 2018 and December 31, 2017 is presented in the following table: March 31, 2018 In thousands Book Value Fair Value Level 1 Level 2 Level 3 Assets: Manquiri Notes Receivable $ 39,887 $ 39,887 $ — $ — $ 39,887 Liabilities: 5.875% Senior Notes due 2024 (1) $ 245,280 $ 244,520 $ — $ 244,520 $ — Revolving Credit Facility (2) $ 115,000 $ 115,000 $ — $ 115,000 $ — (1) Net of unamortized debt issuance costs of $4.7 million . (2) Unamortized debt issuance costs of $1.8 million included in Other Non-Current Assets . December 31, 2017 In thousands Book Value Fair Value Level 1 Level 2 Level 3 Liabilities: 5.875% Senior Notes due 2024 (1) $ 245,088 $ 243,913 $ — $ 243,913 $ — Revolving Credit Facility (2) $ 100,000 $ 100,000 $ — $ 100,000 $ — (1) Net of unamortized debt issuance costs of $4.9 million . (2) Unamortized debt issuance costs of $1.9 million included in Other Non-Current Assets .

Derivative Financial Instrume39

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative instruments, future settlement	At March 31, 2018 , the Company had the following derivative instruments that settle as follows: In thousands except average prices and notional ounces 2018 Thereafter Provisional silver sales contracts $ 831 $ — Average silver price per ounce $ 16.66 $ — Notional ounces 49,853 — Provisional gold sales contracts $ 59,332 $ — Average gold price per ounce $ 1,317 $ — Notional ounces 45,051 — Zinc put options purchased $ 8,100 $ — Average zinc strike price per metric ton $ 3,000 $ — Notional metric tons 2,700 — Zinc call options sold $ (10,935 ) $ — Average zinc strike price per metric ton $ 4,050 $ — Notional metric tons 2,700 —
Fair value of the derivative instruments	The following summarizes the classification of the fair value of the derivative instruments: March 31, 2018 In thousands Prepaid expenses and other Accrued liabilities and other Current portion of royalty obligation Non-current portion of royalty obligation Provisional silver and gold sales contracts $ 407 $ 125 $ — $ — Zinc options 145 — — — $ 552 $ 125 $ — $ — December 31, 2017 In thousands Prepaid expenses and other Accrued liabilities and other Current portion of royalty obligation Non-current portion of royalty obligation Provisional silver and gold sales contracts $ 251 $ 222 $ — $ —
Gain losses on derivative instruments	The following represent mark-to-market gains (losses) on derivative instruments for the three months ended March 31, 2018 and 2017 , respectively (in thousands): Three months ended March 31, Financial statement line Derivative 2018 2017 Revenue Provisional silver and gold sales contracts $ 253 $ 1,212 Fair value adjustments, net Zinc options 145 — $ 398 $ 1,212

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Schedule of Purchase Price and Acquired Assets and Liabilities	The preliminary purchase price allocation is as follows (in thousands): Common shares issued (4,191,679 at $8.59) $ 36,007 Cash 153,194 Contingent consideration 47,705 Total purchase price (1) $ 236,906 Assets: Receivables and other assets $ 6,828 Property, plant, and equipment 29,943 Mining properties, net 288,464 325,235 Liabilities: Accounts payable and accrued liabilities 13,077 Asset retirement obligation 6,982 Debt and capital lease 20,149 Deferred income taxes 48,121 88,329 Net assets acquired $ 236,906 (1) Purchase price has been adjusted for restricted cash acquired due to the adoption of ASU 2016-01.

Investments (Tables)

Investments (Tables)	3 Months Ended
	Mar. 31, 2018
Investment in Marketable Securities [Abstract]
Investments	At March 31, 2018 In thousands Cost Gross Unrealized Losses Gross Unrealized Gains Estimated Fair Value Equity Securities Metalla Royalty & Streaming Ltd. $ 6,294 $ — $ 2,837 $ 9,131 Corvus Gold Inc. 3,582 — 6,844 10,426 Almaden Minerals, Ltd. 2,067 (727 ) — 1,340 Northern Empire Resources Corp. 4,489 — 2,999 7,488 Rockhaven Resources, Ltd. 2,064 (596 ) — 1,468 Other 1,190 (155 ) 115 1,150 Equity securities $ 19,686 $ (1,478 ) $ 12,795 $ 31,003 Debt Securities Metalla Royalty & Streaming Ltd. $ 6,677 $ (363 ) $ — $ 6,314 Equity and debt securities $ 26,363 $ (1,841 ) $ 12,795 $ 37,317 At December 31, 2017 In thousands Cost Gross Unrealized Losses Gross Unrealized Gains Estimated Fair Value Equity Securities Metalla Royalty & Streaming Ltd. $ 6,294 $ — $ 1,354 $ 7,648 Corvus Gold Inc. 3,582 — 4,518 8,100 Almaden Minerals, Ltd. 3,125 (235 ) — 2,890 Northern Empire Resources Corp. 4,489 — 1,077 5,566 Rockhaven Resources, Ltd. 2,064 (193 ) — 1,871 Kootenay Silver, Inc. 738 — 1 739 Other 1,479 (453 ) 405 1,431 Equity securities $ 21,771 $ (881 ) $ 7,355 $ 28,245 Debt Securities Metalla Royalty & Streaming Ltd. $ 6,677 $ (85 ) $ — $ 6,592 Equity and debt securities $ 28,448 $ (966 ) $ 7,355 $ 34,837
Unrealized Gain (Loss) on Investments [Table Text Block]	The following table presents the disaggregated gain (loss) on equity securities recognized in Income (loss) from continuing operations on the Condensed Consolidated Statements of Comprehensive Income: Three months ended March 31, In thousands 2018 2017 Net gain (loss) $ 4,529 $ (1,471 ) Less: Realized (gain) loss 313 1,471 Unrealized gain (loss) $ 4,842 $ —
Schedule of Unrealized Loss on Investments [Table Text Block]	The following table summarizes unrealized losses on debt securities for which other-than-temporary impairments have not been recognized and the fair values of those securities, aggregated by the length of time the individual securities have been in a continuous unrealized loss position, at March 31, 2018 : Less than twelve months Twelve months or more Total In thousands Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Debt securities 363 6,314 — — 363 6,314

Receivables (Tables)

Receivables (Tables)	3 Months Ended
	Mar. 31, 2018
Receivables [Abstract]
Receivables	Receivables consist of the following: In thousands March 31, 2018 December 31, 2017 Current receivables: Trade receivables $ 3,840 $ 5,883 Income tax receivable 48 7 Value added tax receivable 14,482 10,982 Manquiri note receivable 15,840 — Other 1,654 2,197 $ 35,864 $ 19,069 Non-current receivables: Value added tax receivable $ 31,381 $ 28,750 Manquiri note receivable 24,047 — 55,428 28,750 Total receivables $ 91,292 $ 47,819

Inventory and Ore on Leach Pa43

Inventory and Ore on Leach Pads (Tables)	3 Months Ended
	Mar. 31, 2018
Inventory Disclosure [Abstract]
Inventories	Inventory consists of the following: In thousands March 31, 2018 December 31, 2017 Inventory: Concentrate $ 11,062 $ 6,831 Precious metals 17,783 18,803 Supplies 32,878 32,596 61,723 58,230 Ore on leach pads: Current 75,584 73,752 Non-current 67,430 65,393 143,014 139,145 Total inventory and ore on leach pads $ 204,737 $ 197,375

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Property, plant and equipment	Property, plant and equipment consist of the following: In thousands March 31, 2018 December 31, 2017 Land $ 9,107 $ 9,408 Facilities and equipment 559,276 554,160 Assets under capital leases 88,720 82,753 657,103 646,321 Accumulated amortization (1) (456,374 ) (448,001 ) 200,729 198,320 Construction in progress 65,428 56,417 Property, plant and equipment, net $ 266,157 $ 254,737 (1) Includes $29.0 million and $28.2 million of accumulated amortization related to assets under capital leases at March 31, 2018 and December 31, 2017, respectively.

Mining Properties (Tables)

Mining Properties (Tables)	3 Months Ended
	Mar. 31, 2018
Mining Properties [Abstract]
Mining Properties	Mining properties consist of the following (in thousands): March 31, 2018 Palmarejo Rochester Silvertip Kensington Wharf La Preciosa Other Total Mine development $ 220,141 $ 194,390 $ 70,626 $ 307,996 $ 40,688 $ — $ — $ 833,841 Accumulated amortization (151,102 ) (146,245 ) — (182,555 ) (16,456 ) — — (496,358 ) 69,039 48,145 70,626 125,441 24,232 — — 337,483 Mineral interests 629,303 — 245,116 — 45,837 49,085 7,102 976,443 Accumulated amortization (445,327 ) — — — (24,655 ) — — (123 ) (470,105 ) 183,976 — 245,116 — 21,182 49,085 6,979 506,338 Mining properties, net $ 253,015 $ 48,145 $ 315,742 $ 125,441 $ 45,414 $ 49,085 $ 6,979 $ 843,821 December 31, 2017 Palmarejo Rochester Silvertip Kensington Wharf La Preciosa Total Mine development $ 214,383 $ 193,881 $ 57,214 $ 298,749 $ 40,618 $ — $ 804,845 Accumulated amortization (146,598 ) (144,390 ) — (178,632 ) (15,748 ) — (485,368 ) 67,785 49,491 57,214 120,117 24,870 — 319,477 Mineral interests 629,303 — 245,116 — 45,837 49,085 969,341 Accumulated amortization (435,215 ) — — — (24,034 ) — — (459,249 ) 194,088 — 245,116 — 21,803 49,085 510,092 Mining properties, net $ 261,873 $ 49,491 $ 302,330 $ 120,117 $ 46,673 $ 49,085 $ 829,569

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Schedule of Future Minimum Lease Payments for Operating and Capital Leases [Table Text Block] [Table Text Block]
Long term debt and capital lease obligations	March 31, 2018 December 31, 2017 In thousands Current Non-Current Current Non-Current 2024 Senior Notes, net (1) $ — $ 245,280 $ — $ 245,088 Revolving Credit Facility (2) — 115,000 — 100,000 Capital lease obligations 17,040 36,704 16,559 35,481 Silvertip debt obligation — — 14,194 — $ 17,040 $ 396,984 $ 30,753 $ 380,569 (1) Net of unamortized debt issuance costs of $4.7 million and $4.9 million at March 31, 2018 and December 31, 2017 , respectively. (2) Unamortized debt issuance costs of $1.8 million and $1.9 million at March 31, 2018 and December 31, 2017 , respectively, included in Other Non-Current Assets .
Interest expenses incurred for various debt instruments	Interest Expense Three months ended March 31, In thousands 2018 2017 2024 Senior Notes $ 3,673 $ — 2021 Senior Notes — 3,504 Revolving Credit Facility 1,152 — Capital lease obligations 524 306 Amortization of debt issuance costs 325 166 Accretion of debt premium — (43 ) Accretion of Silvertip contingent consideration 324 — Other debt obligations 107 9 Capitalized interest (140 ) (363 ) Total interest expense, net of capitalized interest $ 5,965 $ 3,579

Supplemental Guarantor Inform47

Supplemental Guarantor Information (Tables)	3 Months Ended
	Mar. 31, 2018
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Schedule of Comprehensive Income (Loss)	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS) THREE MONTHS ENDED MARCH 31, 2018 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Revenue $ — $ 93,230 $ 70,037 $ — $ 163,267 COSTS AND EXPENSES Costs applicable to sales (1) — 68,245 31,095 — 99,340 Amortization 246 14,205 16,326 — 30,777 General and administrative 8,797 3 4 — 8,804 Exploration 459 2,245 3,979 — 6,683 Pre-development, reclamation, and other 406 1,947 1,872 — 4,225 Total costs and expenses 9,908 86,645 53,276 — 149,829 OTHER INCOME (EXPENSE), NET Fair value adjustments, net 5,279 (292 ) — — 4,987 Other, net 4,142 (137 ) (106 ) (3,719 ) 180 Interest expense, net of capitalized interest (5,083 ) (353 ) (4,248 ) 3,719 (5,965 ) Total other income (expense), net 4,338 (782 ) (4,354 ) — (798 ) Income (loss) from continuing operations before income and mining taxes (5,570 ) 5,803 12,407 — 12,640 Income and mining tax (expense) benefit 1,638 (1,120 ) (12,467 ) — (11,949 ) Income (loss) from continuing operations (3,932 ) 4,683 (60 ) — 691 Equity income (loss) in consolidated subsidiaries 4,164 (38 ) (170 ) (3,956 ) — Income (loss) from discontinued operations 1,009 (284 ) (175 ) — 550 NET INCOME (LOSS) $ 1,241 $ 4,361 $ (405 ) $ (3,956 ) $ 1,241 OTHER COMPREHENSIVE INCOME (LOSS), net of tax: Unrealized gain (loss) on debt securities, net of tax (278 ) — — — (278 ) COMPREHENSIVE INCOME (LOSS) $ 963 $ 4,361 $ (405 ) $ (3,956 ) $ 963 (1) Excludes amortization. CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS) THREE MONTHS ENDED MARCH 31, 2017 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated Revenue $ — $ 107,194 $ 78,360 $ — $ 185,554 COSTS AND EXPENSES Costs applicable to sales (1) — 71,202 43,288 — 114,490 Amortization 324 18,104 20,265 — 38,693 General and administrative 10,106 24 (5 ) — 10,125 Exploration 336 1,727 3,189 — 5,252 Pre-development, reclamation, and other 175 1,781 1,881 — 3,837 Total costs and expenses 10,941 92,838 68,618 — 172,397 OTHER INCOME (EXPENSE), NET Fair value adjustments, net — (1,200 ) — — (1,200 ) Other, net 15,222 5,458 1,533 (1,414 ) 20,799 Interest expense, net of capitalized interest (3,279 ) (175 ) (1,539 ) 1,414 (3,579 ) Total other income (expense), net 11,943 4,083 (6 ) — 16,020 Income (loss) from continuing operations before income and mining taxes 1,002 18,439 9,736 — 29,177 Income and mining tax (expense) benefit 1,588 (2,434 ) (10,032 ) — (10,878 ) Income (loss) from continuing operations 2,590 16,005 (296 ) — 18,299 Equity income (loss) in consolidated subsidiaries 16,073 70 (67 ) (16,076 ) — Income (loss) from discontinued operations — — 364 — 364 NET INCOME (LOSS) $ 18,663 $ 16,075 $ 1 $ (16,076 ) $ 18,663 OTHER COMPREHENSIVE INCOME (LOSS), net of tax: Unrealized gain (loss) on debt and equity securities, net of tax (2,182 ) (279 ) — 279 (2,182 ) Reclassification adjustments for impairment of equity securities, net of tax 121 121 — (121 ) 121 Reclassification adjustments for realized loss on sale of equity securities, net of tax 1,471 (369 ) — 369 1,471 Other comprehensive income (loss) (590 ) (527 ) — 527 (590 ) COMPREHENSIVE INCOME (LOSS) $ 18,073 $ 15,548 $ 1 $ (15,549 ) $ 18,073 (1) Excludes amortization.
Condensed Cash Flow Statement	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS THREE MONTHS ENDED MARCH 31, 2018 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Cash provided by (used in) activities of continuing operations $ (7,938 ) $ 5,395 $ 22,040 $ (3,956 ) 15,541 Cash provided by (used in) activities of discontinued operations — — (2,690 ) — (2,690 ) CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES (7,938 ) 5,395 19,350 (3,956 ) 12,851 CASH FLOWS FROM INVESTING ACTIVITIES Capital expenditures (83 ) (14,341 ) (27,921 ) — (42,345 ) Proceeds from the sale of assets — 60 — — 60 Purchase of investments (361 ) — — — (361 ) Sales of investments 1,067 552 — — 1,619 Other — — (65 ) — (65 ) Investments in consolidated subsidiaries (4,162 ) 37 169 3,956 — Cash provided by (used in) activities of continuing operations (3,539 ) (13,692 ) (27,817 ) 3,956 (41,092 ) Cash provided by (used in) activities of discontinued operations — — (28,470 ) — (28,470 ) CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES (3,539 ) (13,692 ) (56,287 ) 3,956 (69,562 ) CASH FLOWS FROM FINANCING ACTIVITIES: Issuance of notes and bank borrowings, net of issuance costs 15,000 — 52,577 — — 15,000 Payments on debt, capital leases, and associated costs — (2,395 ) (16,054 ) — (18,449 ) Net intercompany financing activity (20,381 ) (10,946 ) 31,327 — — Other (4,606 ) — — — (4,606 ) Cash provided by (used in) activities of continuing operations (9,987 ) (13,341 ) 15,273 — (8,055 ) Cash provided by (used in) activities of discontinued operations — — (22 ) — (22 ) CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES (9,987 ) (13,341 ) 15,251 — (8,077 ) Effect of exchange rate changes on cash and cash equivalents — 2 555 — 557 Less net cash provided by (used in) discontinued operations — — (32,930 ) — (32,930 ) NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH (21,464 ) (21,636 ) 11,799 — (31,301 ) Cash, cash equivalents and restricted cash at beginning of period 56,033 52,239 95,130 — 203,402 Cash, cash equivalents and restricted cash at end of period $ 34,569 $ 30,603 $ 106,929 $ — $ 172,101 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS THREE MONTHS ENDED MARCH 31, 2017 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated CASH FLOWS FROM OPERATING ACTIVITIES: Cash provided by (used in) activities of continuing operations $ (4,815 ) $ 17,183 $ 47,644 $ (16,076 ) 43,936 Cash provided by (used in) activities of discontinued operations — — 11,335 — 11,335 CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES (4,815 ) 17,183 58,979 (16,076 ) 55,271 CASH FLOWS FROM INVESTING ACTIVITIES Capital expenditures (319 ) (16,975 ) (6,297 ) — (23,591 ) Proceeds from the sale of assets 8,916 6,151 (48 ) — 15,019 Purchase of investments (1,016 ) — — — (1,016 ) Sales of investments 9,157 863 — — 10,020 Other 46 — (60 ) — (14 ) Investments in consolidated subsidiaries (12,454 ) (70 ) 67 12,457 — Cash provided by (used in) activities of continuing operations 4,330 (10,031 ) (6,338 ) 12,457 418 Cash provided by (used in) activities of discontinued operations — — (388 ) — (388 ) CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES 4,330 (10,031 ) (6,726 ) 12,457 30 CASH FLOWS FROM FINANCING ACTIVITIES: Payments on debt, capital leases, and associated costs — (1,874 ) (1,332 ) — (3,206 ) Net intercompany financing activity 14,318 (9,325 ) (8,612 ) 3,619 — Other (3,247 ) — — — (3,247 ) Cash provided by (used in) activities of continuing operations 11,071 (11,199 ) (9,944 ) 3,619 (6,453 ) Cash provided by (used in) activities of discontinued operations — — (20 ) — (20 ) CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES 11,071 (11,199 ) (9,964 ) 3,619 (6,473 ) Effect of exchange rate changes on cash and cash equivalents — — 555 — 555 Less net cash provided by (used in) discontinued operations — — 5,527 — 5,527 NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH 10,586 (4,047 ) 37,317 — 43,856 Cash, cash equivalents and restricted cash at beginning of period 66,337 50,023 10,241 — 126,601 Cash, cash equivalents and restricted cash at end of period $ 76,923 $ 45,976 $ 47,558 $ — $ 170,457
Condensed Balance Sheet	CONDENSED CONSOLIDATING BALANCE SHEET MARCH 31, 2018 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated ASSETS CURRENT ASSETS Cash and cash equivalents $ 22,111 $ 30,603 $ 106,929 $ — $ 159,643 Receivables 15,895 5,084 14,885 — 35,864 Ore on leach pads — 75,584 — — 75,584 Inventory — 31,512 30,211 — 61,723 Prepaid expenses and other 8,892 3,193 6,118 — 18,203 46,898 145,976 158,143 — 351,017 NON-CURRENT ASSETS Property, plant and equipment, net 3,141 165,578 97,438 — 266,157 Mining properties, net 6,980 219,000 617,841 — 843,821 Ore on leach pads — 67,430 — — 67,430 Restricted assets 14,352 227 7,537 — 22,116 Equity and debt securities 36,772 545 — — 37,317 Receivables 24,047 — 31,381 — 55,428 Net investment in subsidiaries 423,448 332 694 (424,474 ) — Other 317,146 11,820 3,431 (313,748 ) 18,649 TOTAL ASSETS $ 872,784 $ 610,908 $ 916,465 $ (738,222 ) $ 1,661,935 LIABILITIES AND STOCKHOLDERS’ EQUITY CURRENT LIABILITIES Accounts payable $ 3,419 $ 21,634 $ 19,811 $ — $ 44,864 Other accrued liabilities 16,643 12,059 76,447 — 105,149 Debt — 9,977 7,063 — 17,040 Reclamation — 2,313 1,464 — 3,777 20,062 45,983 104,785 — 170,830 NON-CURRENT LIABILITIES Debt 360,280 31,116 319,336 (313,748 ) 396,984 Reclamation — 83,392 35,762 — 119,154 Deferred tax liabilities 2,641 4,978 97,605 — 105,224 Other long-term liabilities 2,602 2,751 50,079 — 55,432 Intercompany payable (receivable) (327,111 ) 307,016 20,095 — — 38,412 429,253 522,877 (313,748 ) 676,794 STOCKHOLDERS’ EQUITY Common stock 1,862 19,630 195,020 (214,650 ) 1,862 Additional paid-in capital 3,355,710 145,024 1,882,610 (2,027,634 ) 3,355,710 Accumulated deficit (2,542,899 ) (28,982 ) (1,788,827 ) 1,817,810 (2,542,898 ) Accumulated other comprehensive income (loss) (363 ) — — — (363 ) 814,310 135,672 288,803 (424,474 ) 814,311 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 872,784 $ 610,908 $ 916,465 $ (738,222 ) $ 1,661,935 CONDENSED CONSOLIDATING BALANCE SHEET DECEMBER 31, 2017 In thousands Coeur Mining, Inc. Guarantor Subsidiaries Non-Guarantor Subsidiaries Eliminations Consolidated ASSETS CURRENT ASSETS Cash and cash equivalents $ 44,662 $ 52,239 $ 95,131 $ — $ 192,032 Receivables 137 7,922 11,010 — 19,069 Ore on leach pads — 73,752 — — 73,752 Inventory — 29,769 28,461 — 58,230 Prepaid expenses and other 7,824 2,816 4,413 — 15,053 Assets held for sale — — 91,421 — 91,421 52,623 166,498 230,436 — 449,557 NON-CURRENT ASSETS Property, plant and equipment, net 4,007 161,487 89,243 — 254,737 Mining properties, net — 216,281 613,288 — 829,569 Ore on leach pads — 65,393 — — 65,393 Restricted assets 13,251 227 7,369 — 20,847 Equity and debt securities 33,569 1,268 — — 34,837 Receivables — — 28,750 — 28,750 Net investment in subsidiaries 422,074 223 (18 ) (422,279 ) — Other 320,335 11,040 2,854 (316,744 ) 17,485 TOTAL ASSETS $ 845,859 $ 622,417 $ 971,922 $ (739,023 ) $ 1,701,175 LIABILITIES AND STOCKHOLDERS’ EQUITY CURRENT LIABILITIES Accounts payable $ 3,607 $ 24,534 $ 20,451 $ — $ 48,592 Other accrued liabilities 13,205 19,262 62,463 — 94,930 Debt — 9,215 21,538 — 30,753 Reclamation — 2,313 1,464 — 3,777 Liabilities held for sale — — 50,677 — 50,677 16,812 55,324 156,593 — 228,729 NON-CURRENT LIABILITIES Debt 345,088 28,313 323,912 (316,744 ) 380,569 Reclamation — 82,021 35,034 — 117,055 Deferred tax liabilities 4,110 5,127 95,911 — 105,148 Other long-term liabilities 2,311 3,063 49,323 — 54,697 Intercompany payable (receivable) (337,439 ) 317,759 19,680 — — 14,070 436,283 523,860 (316,744 ) 657,469 STOCKHOLDERS’ EQUITY Common stock 1,856 19,630 195,020 (214,650 ) 1,856 Additional paid-in capital 3,357,345 149,194 1,885,046 (2,034,240 ) 3,357,345 Accumulated deficit (2,546,743 ) (34,551 ) (1,788,597 ) 1,823,148 (2,546,743 ) Accumulated other comprehensive income (loss) 2,519 (3,463 ) — 3,463 2,519 814,977 130,810 291,469 (422,279 ) 814,977 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 845,859 $ 622,417 $ 971,922 $ (739,023 ) $ 1,701,175

Discontinued Operations (Tables

Discontinued Operations (Tables)	3 Months Ended
	Mar. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Major Classes of Assets and Liabilities	The major classes of line items constituting the pretax profit or loss for the three months ended March 31, 2018 and 2017 are as follows: Three months ended March 31, 2018 2017 Revenue $ 12,346 $ 20,584 COSTS AND EXPENSES Costs applicable to sales (1) 12,269 18,222 Amortization — 1,411 General and administrative 41 8 Pre-development, reclamation, and other 265 744 OTHER INCOME (EXPENSE), NET Interest expense, net of capitalized interest (3 ) (6 ) Other, net (260 ) 340 Pretax profit (loss) on discontinued operations related to major classes of pretax profit (loss) (492 ) 533 Pretax gain on the disposal of the discontinued operation 1,525 — Total pretax gain or loss on discontinued operations 1,033 533 Income and mining tax (expense) benefit (483 ) (169 ) Income (loss) from discontinued operations $ 550 $ 364 (1) Excludes amortization.

Additional Balance Sheet Deta49

Additional Balance Sheet Detail and Supplemental Cash Flow Information (Tables)	3 Months Ended
	Mar. 31, 2018
Supplemental Cash Flow Information [Abstract]
Schedule of Accrued Liabilities [Table Text Block]	Accrued liabilities and other consist of the following: March 31, 2018 December 31, 2017 Accrued salaries and wages $ 15,552 $ 26,559 Income and mining taxes 36,642 25,788 Silvertip contingent consideration 24,543 24,393 Accrued operating costs 17,174 12,323 Taxes other than income and mining 5,644 4,354 Accrued interest payable 5,594 1,513 Accrued liabilities and other $ 105,149 $ 94,930
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]	The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the statement of financial position that sum to the total of the same such amounts shown in the statement of cash flows: March 31, 2018 March 31, 2017 Cash and cash equivalents $ 159,643 $ 160,636 Restricted cash equivalents 12,458 9,821 Total cash, cash equivalents and restricted cash shown in the statement of cash flows 172,101 170,457

Summary of Significant Accoun50

Summary of Significant Accounting Policies Summary of Unearned Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Contract Liabilities
Opening Balance	$ 14,883	$ 19,281
Revenue Recognized	(543)	(1,629)
Closing Balance	$ 14,340	$ 17,652

Segment Reporting (Details)

Segment Reporting (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Financial information relating to reporting segments
Revenue		$ 163,267	$ 185,554
Revenues		163,267	185,554
Costs applicable to sales	[1]	99,340	114,490
Amortization		30,777	38,693
Exploration		6,683	5,252
Other operating expenses		13,029	13,962
Fair value adjustments, net, pretax		4,987	(1,200)
Interest expense, net		(5,965)	(3,579)
Other, net		180	20,799
Income and mining tax benefit (expense)		(11,949)	(10,878)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		691	18,299
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		550	364
Assets, Net	[2]	1,424,210	1,023,211	$ 1,344,553
Capital expenditures		42,345	23,591
Palmarejo [Member]
Financial information relating to reporting segments
Revenue		70,037	77,704
Costs applicable to sales	[1]	31,096	43,001
Amortization		16,325	20,150
Exploration		3,970	1,631
Other operating expenses		731	301
Fair value adjustments, net, pretax		0	0
Interest expense, net		(119)	(125)
Other, net		(2,144)	1,794
Income and mining tax benefit (expense)		(12,443)	(12,245)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		3,209	2,045
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		0	0
Assets, Net	[2]	377,146	401,623
Capital expenditures		9,293	6,230
Rochester [Member]
Financial information relating to reporting segments
Revenue		33,497	38,979
Costs applicable to sales	[1]	24,305	26,439
Amortization		4,831	5,816
Exploration		33	144
Other operating expenses		884	810
Fair value adjustments, net, pretax		0	(1,200)
Interest expense, net		(98)	(117)
Other, net		(40)	(32)
Income and mining tax benefit (expense)		(371)	(498)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		2,935	3,923
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		0	0
Assets, Net	[2]	245,881	227,526
Capital expenditures		2,633	10,568
Silvertip [Member]
Financial information relating to reporting segments
Revenue		0
Costs applicable to sales	[1]	0
Amortization		0
Exploration		0
Other operating expenses		20
Fair value adjustments, net, pretax		0
Interest expense, net		(410)
Other, net		362
Income and mining tax benefit (expense)		835
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		767
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		0
Assets, Net	[2]	361,212
Capital expenditures		18,629
Kensington [Member]
Financial information relating to reporting segments
Revenue		36,300	37,964
Costs applicable to sales	[1]	28,630	28,443
Amortization		6,717	9,178
Exploration		1,590	839
Other operating expenses		321	345
Fair value adjustments, net, pretax		0	0
Interest expense, net		(243)	(40)
Other, net		(37)	(808)
Income and mining tax benefit (expense)		0	0
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		(1,238)	(1,689)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		0	0
Assets, Net	[2]	215,244	204,987
Capital expenditures		11,364	5,521
Wharf [Member]
Financial information relating to reporting segments
Revenue		23,433	30,251
Costs applicable to sales	[1]	15,309	16,320
Amortization		2,657	3,111
Exploration		10	0
Other operating expenses		665	619
Fair value adjustments, net, pretax		0	0
Interest expense, net		(12)	(19)
Other, net		(21)	89
Income and mining tax benefit (expense)		(639)	(957)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		4,120	9,314
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		0	0
Assets, Net	[2]	104,805	104,673
Capital expenditures		344	887
Other Mining Properties [Member]
Financial information relating to reporting segments
Revenue		0	656
Costs applicable to sales	[1]	0	287
Amortization		247	438
Exploration		1,080	2,638
Other operating expenses		10,408	11,887
Fair value adjustments, net, pretax		4,987	0
Interest expense, net		(5,083)	(3,278)
Other, net		2,060	19,756
Income and mining tax benefit (expense)		669	2,822
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent		(9,102)	4,706
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		550	364
Assets, Net	[2]	119,922	84,402
Capital expenditures		$ 82	$ 385
[1]	Excludes amortization.
[2]	Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interest

Segment Reporting (Details 1)

Segment Reporting (Details 1) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Segment Reporting [Abstract]
Assets, Net	[1]	$ 1,424,210	$ 1,344,553	$ 1,023,211
Cash and cash equivalents		159,643	192,032	$ 160,636
Other assets		78,082	164,590
TOTAL ASSETS		$ 1,661,935	$ 1,701,175
[1]	Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interest

Segment Reporting (Details 2)

Segment Reporting (Details 2) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	$ 1,109,978		$ 1,084,306
Revenues
Revenues	163,267	$ 185,554
United States
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	384,578		377,768
Revenues
Revenues	93,230	107,194
Canada
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	350,556		331,440
Mexico
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	364,047		370,188
Revenues
Revenues	70,037	77,704
Australia
Revenues
Revenues	0	$ 656
Other Foreign Countries [Member]
Long Lived Assets
Long Lived Assets in Entity's Country of Domicile	$ 10,797		$ 4,910

Stock-Based Compensation (Detai

Stock-Based Compensation (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation cost	$ 4.8
Unrecognized stock-based compensation cost, weighted-average period recognized	1 year 5 months
Annual Incentive Plan and Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense for stock based compensation awards	$ 2.8	$ 3.3

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Grants Awarded (Details) - March 5, 2018	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock granted (in shares) | shares	31,887
Grant date fair value of restricted stock (in dollars per share) | $ / shares	$ 7.84
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares) | shares	0
Grant date fair value of stock options (in dollars per share) | $ / shares	$ 0
Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares granted (in shares) | shares	0
Grant date fair value of performance shares (in dollars per share) | $ / shares	$ 0

Stock-Based Compensation - Su56

Stock-Based Compensation - Summary of Exercisable Options and Appreciation Rights (Details)	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Exercised Units | shares	93,920
Weighted Average Exercised Price (in dollars per share) | $ / shares	$ 1.81
Number of Exercisable Units | shares	397,651
Weighted Average Exercisable Price (in dollars per share) | $ / shares	$ 14.39
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Exercised Units | shares	0
Weighted Average Exercised Price (in dollars per share) | $ / shares	$ 0
Number of Exercisable Units | shares	42,152
Weighted Average Exercisable Price (in dollars per share) | $ / shares	$ 14.14

Reclamation (Details)

Reclamation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Asset retirement obligation
Asset retirement obligation - Beginning	$ 118,799	$ 86,754
Accretion	2,545	2,064
Settlements	(496)	(421)
Asset retirement obligation - Ending	$ 120,848	$ 88,397
Property, Plant and Equipment [Line Items]
Accrued reclamation liabilities, former mines			$ 2,100	$ 2,000

Retirement Savings Plan (Detail

Retirement Savings Plan (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Postemployment Benefits [Abstract]
Percentage of maximum limit for employees to contribute their cash compensation	75.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	4.00%
Total plan expenses	$ 1.2	$ 2.1

Other, Net (Details)

Other, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Other Income and Expenses [Abstract]
Foreign exchange gain (loss)	$ (670)	$ 1,206
Loss on sale of assets and investments	(574)	(2,066)
Gain on sale of the Joaquin project	0	21,138
Other	1,424	521
Other, net	$ 180	$ 20,799

Net Income (Loss) Per Share (De

Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net Income (Loss) Attributable to Coeur Stockholders
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ 691	$ 18,299
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	550	364
Net income (loss)	$ 1,241	$ 18,663
Weighted Average Number of Shares Outstanding
Weighted Average Number of Shares Outstanding, Basic	184,367,000	178,898,000
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	3,254,000	4,170,000
Weighted Average Number of Shares Outstanding, Diluted	187,621,000	183,068,000
Basic EPS
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.004	$ 0.10
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	0.003	0
Earnings Per Share, Basic	0.007	0.10
Diluted EPS
Income (Loss) from Continuing Operations, Per Diluted Share	0.004	0.10
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	0.003	0
Earnings Per Share, Diluted	$ 0.007	$ 0.10
Stock Options [Member]
Earnings Per Share (Textual) [Abstract]
Number of antidilutive shares of common stock equivalents	496,064	1,368,685

Income and Mining Taxes - Narra

Income and Mining Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Contingency [Line Items]
Foreign Income Tax Expense (Benefit), Continuing Operations	$ 3.6	$ 5.6
Unrecognized Tax Benefits	3.9		$ 4.3
Income tax penalties and interest expense	4.2		$ 4.8
Minimum
Income Tax Contingency [Line Items]
Unrecognized income tax liability	1.5
Maximum
Income Tax Contingency [Line Items]
Unrecognized income tax liability	$ 2.5

Income and Mining Taxes - Incom

Income and Mining Taxes - Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Examination [Line Items]
Tax (expense) benefit	$ 11,949	$ 10,878
Total	12,640	29,177
United States
Income Tax Examination [Line Items]
Income (loss) before tax, United States	1,187	20,653
Tax (expense) benefit	517	(1,827)
Argentina
Income Tax Examination [Line Items]
Tax (expense) benefit	10	1,124
Income (loss) before tax, Foreign	254	(328)
Mexico
Income Tax Examination [Line Items]
Tax (expense) benefit	(13,222)	(9,923)
Income (loss) before tax, Foreign	13,126	8,650
Other jurisdictions
Income Tax Examination [Line Items]
Tax (expense) benefit	746	(252)
Income (loss) before tax, Foreign	$ (1,927)	$ 202

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Gain (Loss) Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on derivative instruments	$ 4,987	$ (1,200)
Marketable Securities, Unrealized Gain (Loss)	4,842	0
Rochester Royalty Obligation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on derivative instruments	0	(1,200)
Zinc options
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net derivative gain (loss)	$ 100	$ 0

Fair Value Measurements - Sum64

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets:
Assets	$ 37,869	$ 35,088
Liabilities:
Total liabilities	48,414	48,187
Other derivative instruments, net
Assets:
Fair value of other derivative instruments, net	552	251
Liabilities:
Fair value of derivative liability	125	222
Silvertip Mine
Liabilities:
Fair value of derivative liability	48,289	47,965
Equity and debt securities
Assets:
Fair value of equity and debt securities	37,317	34,837
Equity and debt securities
Assets:
Fair value of equity and debt securities	31,003	28,245
Level 1
Assets:
Assets	31,003	27,946
Liabilities:
Total liabilities	0	0
Level 1 | Other derivative instruments, net
Assets:
Fair value of other derivative instruments, net	0	0
Liabilities:
Fair value of derivative liability	0	0
Level 1 | Silvertip Mine
Liabilities:
Fair value of derivative liability	0	0
Level 1 | Equity and debt securities
Assets:
Fair value of equity and debt securities	31,003	27,946
Level 2
Assets:
Assets	552	251
Liabilities:
Total liabilities	125	222
Level 2 | Other derivative instruments, net
Assets:
Fair value of other derivative instruments, net	552	251
Liabilities:
Fair value of derivative liability	125	222
Level 2 | Silvertip Mine
Liabilities:
Fair value of derivative liability	0	0
Level 2 | Equity and debt securities
Assets:
Fair value of equity and debt securities	0	0
Level 3
Assets:
Assets	6,314	6,891
Liabilities:
Total liabilities	48,289	47,965
Level 3 | Other derivative instruments, net
Assets:
Fair value of other derivative instruments, net	0	0
Liabilities:
Fair value of derivative liability	0	0
Level 3 | Equity and debt securities
Assets:
Fair value of equity and debt securities		6,891
Silvertip Mine
Liabilities:
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value	48,289	$ 47,965
Available-for-sale Securities | Level 3 | Equity and debt securities
Assets:
Fair value of equity and debt securities	$ 6,314

Fair Value Measurements - Sum65

Fair Value Measurements - Summary of Level 3 Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Available-for-sale Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the start of the period	$ 6,891
Revaluation	(278)
Settlements	299
Asset Sales	0
Silvertip Mine
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at the start of the period	47,965
Revaluation	0
Settlements	0
Liability Sales	324
Balance at the end of the period	48,289
Equity and debt securities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Available-for-sale Securities	$ 31,003	$ 28,245

Fair Value Measurements - Sum66

Fair Value Measurements - Summary of Assets and Liabilities Carried at Book Value (Details) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Book value		$ 396,984	$ 380,569
Senior Notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Book value	[1]	245,280	245,088
Manquiri Note Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Nontrade Receivables	[1]	39,887
Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Book value	[1]	115,000	100,000
Portion at Other than Fair Value Measurement | Senior Notes due 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt		244,520	243,913
Portion at Other than Fair Value Measurement | Senior Notes due 2024 | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt		0	0
Portion at Other than Fair Value Measurement | Senior Notes due 2024 | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt		244,520	243,913
Portion at Other than Fair Value Measurement | Senior Notes due 2024 | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt		0	0
Portion at Other than Fair Value Measurement | Manquiri Note Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Receivables, Fair Value Disclosure		39,887
Portion at Other than Fair Value Measurement | Manquiri Note Receivable [Member] | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Receivables, Fair Value Disclosure		0
Portion at Other than Fair Value Measurement | Manquiri Note Receivable [Member] | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Receivables, Fair Value Disclosure		0
Portion at Other than Fair Value Measurement | Manquiri Note Receivable [Member] | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Receivables, Fair Value Disclosure		39,887
Portion at Other than Fair Value Measurement | Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt		115,000	100,000
Portion at Other than Fair Value Measurement | Revolving Credit Facility | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt		0	0
Portion at Other than Fair Value Measurement | Revolving Credit Facility | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt		115,000	100,000
Portion at Other than Fair Value Measurement | Revolving Credit Facility | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of long-term debt		$ 0	$ 0
[1]	Net of unamortized debt issuance costs of $4.7 million and $4.9 million at March 31, 2018 and December 31, 2017, respectively.

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Oct. 31, 2017	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jul. 31, 2017	May 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Ownership in Metalla Royalty & Streaming Ltd.				19.90%
Senior Notes due 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net unamortized debt issuance costs		$ 4.7	$ 4.9
Stated interest rate						5.875%
Senior Notes due 2024 | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate			5.875%
Non-core three royalties and stream
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total consideration					$ 13
Convertible debenture					$ 6.7
Debt Securities | Metalla Royalty & Streaming Ltd.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Stated interest rate			5.00%
JDS Silver Holdings Ltd.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Purchase Commitment, Milestones		2
Silvertip Mine
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration payment	$ 25
Permitting payment, estimated discount rate (percentage)	2.50%
Resource declaration payment, estimated discount rate (percentage)	2.90%

Derivative Financial Instrume68

Derivative Financial Instruments - Summary of Provisionally Priced Sales (Details) $ in Thousands	Mar. 31, 2018USD ($)oz$ / oz
Silver concentrate sales agreements | 2018
Derivative instruments Settlement
Derivative, notional amount | $	$ (831)
Derivative average price	16.66
Outstanding Provisionally Priced Sales Consists of Silver | oz	49,853
Silver concentrate sales agreements | Thereafter
Derivative instruments Settlement
Derivative, notional amount | $	$ 0
Derivative average price	0
Outstanding Provisionally Priced Sales Consists of Silver | oz	0
Gold concentrates sales agreements | 2018
Derivative instruments Settlement
Derivative, notional amount | $	$ (59,332)
Derivative average price	1,317
Outstanding Provisionally Priced Sales Consists of Gold | oz	45,051
Gold concentrates sales agreements | Thereafter
Derivative instruments Settlement
Derivative, notional amount | $	$ 0
Derivative average price	0
Outstanding Provisionally Priced Sales Consists of Gold | oz	0
Zinc Put Options, Purchased [Member]
Derivative instruments Settlement
Derivative average price	3,000
Zinc Put Options, Purchased [Member] | 2018
Derivative instruments Settlement
Derivative, notional amount | $	$ (8,100)
Derivative, Nonmonetary Notional Amount | oz	2,700
Derivative average price	3,000
Zinc Put Options, Purchased [Member] | Thereafter
Derivative instruments Settlement
Derivative, notional amount | $	$ 0
Derivative, Nonmonetary Notional Amount | oz	0
Derivative average price	0
Zinc Call Options, Sold [Member] | 2018
Derivative instruments Settlement
Derivative, notional amount | $	$ (10,935)
Derivative, Nonmonetary Notional Amount | oz	2,700
Derivative average price	4,050
Zinc Call Options, Sold [Member] | Thereafter
Derivative instruments Settlement
Derivative, notional amount | $	$ 0
Derivative, Nonmonetary Notional Amount | oz	0
Derivative average price	0

Derivative Financial Instrume69

Derivative Financial Instruments - Summary of Classification of Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Prepaid expenses and other
Fair value of the derivative instruments
Other derivative instruments, net	$ 552
Accrued liabilities and other
Fair value of the derivative instruments
Fair value of derivative liability	125
Non-current portion of royalty obligation
Fair value of the derivative instruments
Fair value of derivative liability	0
Silver and Gold Concentrate Sales Agreements | Prepaid expenses and other
Fair value of the derivative instruments
Other derivative instruments, net	407	$ 251
Silver and Gold Concentrate Sales Agreements | Accrued liabilities and other
Fair value of the derivative instruments
Fair value of derivative liability	125	222
Silver and Gold Concentrate Sales Agreements | Non-current portion of royalty obligation
Fair value of the derivative instruments
Fair value of derivative liability	0	$ 0
Zinc Put and Call Options [Member] | Prepaid expenses and other
Fair value of the derivative instruments
Other derivative instruments, net	145
Zinc Put and Call Options [Member] | Non-current portion of royalty obligation
Fair value of the derivative instruments
Fair value of derivative liability	$ 0

Derivative Financial Instrume70

Derivative Financial Instruments - Summary of Mark-to-Market Gain (Losses) on Derivative Instruments (Details)	3 Months Ended
	Mar. 31, 2018USD ($)$ / oz	Mar. 31, 2017USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Fair value adjustments, net, pretax	$ 4,987,000	$ (1,200,000)
Fair value adjustments, net	$ 398,000	1,212,000
Zinc Put Options, Purchased [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Weighted Average Strike Price of Put Options | $ / oz	3,000
Provisional silver and gold sales contracts
Derivative Instruments, Gain (Loss) [Line Items]
Provisional gain (loss) on derivatives and commodity contracts	$ 253,000	1,212,000
Zinc options
Derivative Instruments, Gain (Loss) [Line Items]
Net derivative gain (loss)	100,000	$ 0
Derivative Asset	$ 145,000
Zinc Call Options, Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Weighted Average Strike Price of Call Options	4,050

Derivative Financial Instrume71

Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Concentrate Sales Contracts
Derivative [Line Items]
Provisional gain (loss) on derivatives and commodity contracts	$ 253	$ 1,212
Zinc options
Derivative [Line Items]
Net derivative gain (loss)	$ 100	$ 0

Acquisitions - JDS Silver (Deta

Acquisitions - JDS Silver (Details) - JDS Silver Holdings Ltd. shares in Thousands	1 Months Ended
	Oct. 31, 2017USD ($)shares
Business Acquisition [Line Items]
Shares issued | shares	4,200
Cash	$ 153,194,000
Contingent consideration, liability	47,705,000
Cash consideration	100,000,000
Total purchase price	236,906,000
Assets:
Receivables and other assets	6,828,000
Property, plant, and equipment	29,943,000
Mining properties, net	288,464,000
Total assets acquired	325,235,000
Liabilities:
Accounts payable and accrued liabilities	13,077,000
Asset retirement obligation	6,982,000
Debt and capital lease	20,149,000
Deferred income taxes	48,121,000
Total liabilities assumed	88,329,000
Net assets acquired	236,906,000
Common Stock
Business Acquisition [Line Items]
Common shares issued (value)	$ 36,007,000
Common shares issued (in shares) | shares	4,191,679
Price per common share issued (UDS per share)	$ 8,590

Investments (Details)

Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Available-for-sale Securities [Abstract]
Gain (Loss) on Investments	$ 4,529	$ (1,471)
Marketable Securities, Realized Gain (Loss)	313	1,471
Marketable Securities, Unrealized Gain (Loss)	4,842	$ 0
Investment in Marketable Securities (Textual) [Abstract]
Held-to-maturity Securities, Restricted	22,100		$ 17,600
Equity securities
Available-for-sale Securities
Cost	19,686		21,771
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(1,478)		(881)
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	12,795		7,355
Available-for-sale Securities	31,003		28,245
Debt Securities
Available-for-sale Securities
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax			(363)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss			363
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value			6,314
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value			0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value			6,314
Equity and debt securities
Available-for-sale Securities
Cost	26,363		28,448
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(1,841)		(966)
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	12,795		7,355
Available-for-sale Securities	37,317		34,837
Metalla Royalty & Streaming Ltd. | Equity securities
Available-for-sale Securities
Cost	6,294		6,294
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0		0
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	2,837		1,354
Available-for-sale Securities	9,131		7,648
Metalla Royalty & Streaming Ltd. | Debt Securities
Available-for-sale Securities
Cost	6,677		6,677
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(363)		(85)
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	0		0
Available-for-sale Securities			6,592
Corvus Gold Inc. [Member] | Equity securities
Available-for-sale Securities
Cost	3,582		3,582
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0		0
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	6,844		4,518
Available-for-sale Securities	10,426		8,100
Almaden Minerals, Ltd. [Member] | Equity securities
Available-for-sale Securities
Cost	2,067		3,125
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(727)		(235)
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	0		0
Available-for-sale Securities	1,340		2,890
Northern Empire Resources Corp. [Member] | Equity securities
Available-for-sale Securities
Cost	4,489		4,489
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	0		0
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	2,999		1,077
Available-for-sale Securities	7,488		5,566
Rockhaven Resources, Ltd. [Member] | Equity securities
Available-for-sale Securities
Cost	2,064		2,064
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(596)		(193)
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	0		0
Available-for-sale Securities	1,468		1,871
Other Investments [Member] | Equity securities
Available-for-sale Securities
Cost	1,190		1,479
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(155)		(453)
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax	115		405
Available-for-sale Securities	1,150		1,431
Kootenay Silver, Inc. [Member] | Equity securities
Available-for-sale Securities
Cost			738
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax			0
Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax			1
Available-for-sale Securities			739
Level 3 | Equity and debt securities
Available-for-sale Securities
Available-for-sale Securities			$ 6,891
Available-for-sale Securities | Level 3 | Equity and debt securities
Available-for-sale Securities
Available-for-sale Securities	$ 6,314

Receivables (Details)

Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Receivables - current portion
Accounts receivable - trade	$ 3,840	$ 5,883
Refundable income tax	48	7
Refundable value added tax	14,482	10,982
Notes, Loans and Financing Receivable, Net, Current	15,840	0
Accounts receivable - other	1,654	2,197
Receivables, net current portion	35,864	19,069
Receivables - non-current portion
Refundable value added tax	31,381	28,750
Receivables, Net, Current	24,047	0
Accounts Receivable, Net, Noncurrent	55,428	28,750
Total receivables	$ 91,292	$ 47,819

Receivables (Details Textual)

Receivables (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Value Added Tax Receivable, Noncurrent	$ 31,381	$ 28,750

Inventory and Ore on Leach Pa76

Inventory and Ore on Leach Pads (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Inventory, Finished Goods, Net of Reserves	$ 11,062	$ 6,831
Other Inventory, Net of Reserves	17,783	18,803
Inventory, Supplies, Net of Reserves	32,878	32,596
Inventory	61,723	58,230
Ore on Leach Pad, Current	75,584	73,752
Ore on leach pads, noncurrent	67,430	65,393
Inventory, Ore Stockpiles on Leach Pads, Gross	143,014	139,145
Inventory and Ore on Leach Pads	$ 204,737	$ 197,375

Property, Plant and Equipment77

Property, Plant and Equipment (Details) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Property, plant and equipment
Land		$ 9,107	$ 9,408
Building improvements		559,276	554,160
Capitalized leases for machinery, equipment and buildings		88,720	82,753
Property, plant and equipment, gross		657,103	646,321
Accumulated depreciation and amortization	[1]	(456,374)	(448,001)
Property Plant and Equipment Net before Construction in Progress		200,729	198,320
Construction in Progress		65,428	56,417
Property, plant and equipment, net		$ 266,157	$ 254,737
[1]	Includes $29.0 million and $28.2 million of accumulated amortization related to assets under capital leases at March 31, 2018 and December 31, 2017, respectively.

Property, Plant and Equipment78

Property, Plant and Equipment (Details Textual) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 29	$ 28.2

Mining Properties (Details)

Mining Properties (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Mining Properties
Operational mining properties:	$ 833,841	$ 804,845
Accumulated depletion	(496,358)	(485,368)
Operational mining properties, net	337,483	319,477
Mineral interest	976,443	969,341
Accumulated depletion	(470,105)	(459,249)
Mineral interest, net	506,338	510,092
Total mining properties	843,821	829,569
Palmarejo [Member]
Mining Properties
Operational mining properties:	220,141	214,383
Accumulated depletion	(151,102)	(146,598)
Operational mining properties, net	69,039	67,785
Mineral interest	629,303	629,303
Accumulated depletion	(445,327)	(435,215)
Mineral interest, net	183,976	194,088
Total mining properties	253,015	261,873
Rochester [Member]
Mining Properties
Operational mining properties:	194,390	193,881
Accumulated depletion	(146,245)	(144,390)
Operational mining properties, net	48,145	49,491
Mineral interest	0	0
Accumulated depletion	0	0
Mineral interest, net	0	0
Total mining properties	48,145	49,491
Silvertip [Member]
Mining Properties
Operational mining properties:	70,626	57,214
Accumulated depletion	0	0
Operational mining properties, net	70,626	57,214
Mineral interest	245,116	245,116
Accumulated depletion	0	0
Mineral interest, net	245,116	245,116
Total mining properties	315,742	302,330
Kensington [Member]
Mining Properties
Operational mining properties:	307,996	298,749
Accumulated depletion	(182,555)	(178,632)
Operational mining properties, net	125,441	120,117
Mineral interest	0	0
Accumulated depletion	0	0
Mineral interest, net	0	0
Total mining properties	125,441	120,117
Wharf [Member]
Mining Properties
Operational mining properties:	40,688	40,618
Accumulated depletion	(16,456)	(15,748)
Operational mining properties, net	24,232	24,870
Mineral interest	45,837	45,837
Accumulated depletion	(24,655)	(24,034)
Mineral interest, net	21,182	21,803
Total mining properties	45,414	46,673
La Preciosa [Member]
Mining Properties
Operational mining properties:	0	0
Accumulated depletion	0	0
Operational mining properties, net	0	0
Mineral interest	49,085	49,085
Accumulated depletion	0	0
Mineral interest, net	49,085	49,085
Total mining properties	49,085	$ 49,085
Other Mining Properties [Member]
Mining Properties
Operational mining properties:	0
Accumulated depletion	0
Operational mining properties, net	0
Mineral interest	7,102
Accumulated depletion	(123)
Mineral interest, net	6,979
Total mining properties	$ 6,979

Mining Properties (Details Text

Mining Properties (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Property, Plant and Equipment [Line Items]
Gain (loss) on sale of assets and investments	$ 0	$ 21,138

Debt (Details)

Debt (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Long term debt and capital lease obligations
Current		$ 17,040		$ 30,753
Debt		396,984		380,569
Interest paid on Revolving Credit Facility		1,152	$ 0
Interest expenses incurred for various debt instruments
Interest paid on Senior Notes due 2024		3,673	0
Interest Paid on Senior Notes due 2021		0	3,504
Interest Paid on Capital Leases		524	306
Debt Issuance Cost (Deprecated 2016-01-31)		325	166
Amortization of debt issuance costs		0	(43)
Accretion		324	0
Interest Expense, Debt		107	9
Capitalized interest		(140)	(363)
Total interest expense, net of capitalized interest		5,965	$ 3,579
Revolving Credit Facility
Long term debt and capital lease obligations
Debt	[1]	115,000		100,000
Silvertip Debt Obligation [Member]
Long term debt and capital lease obligations
Debt		0		0
Senior Notes due 2024
Long term debt and capital lease obligations
Debt	[1]	245,280		245,088
Capital Lease Obligations [Member]
Long term debt and capital lease obligations
Debt		36,704		35,481
Revolving Credit Facility
Long term debt and capital lease obligations
Current		0		0
Silvertip Debt Obligation [Member]
Long term debt and capital lease obligations
Current		0		14,194
Senior Notes due 2024
Long term debt and capital lease obligations
Current	[1]	0		0
Capital Lease Obligations [Member]
Long term debt and capital lease obligations
Current		$ 17,040		$ 16,559
Revolving Credit Facility
Long term debt and capital lease obligations
Stated interest rate		4.10%
[1]	Net of unamortized debt issuance costs of $4.7 million and $4.9 million at March 31, 2018 and December 31, 2017, respectively.

Debt (Details Textual)

Debt (Details Textual) - USD ($)	1 Months Ended		3 Months Ended
	Sep. 30, 2017	May 31, 2017	Mar. 31, 2018	Dec. 31, 2017
Senior Notes due 2024
Debt Instrument [Line Items]
Net unamortized debt issuance costs			$ 4,700,000	$ 4,900,000
Debt Instrument, Face Amount		$ 250,000,000
Proceeds from Debt		$ 245,000,000
Stated interest rate		5.875%
Silvertip Debt Obligation [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount				15,000,000
Repayments of Debt			12,600,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount			12,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Net unamortized debt issuance costs			$ 1,800,000	1,900,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 200,000,000
Line of Credit Facility, Additional Borrowing Capacity	$ 50,000,000
Debt Instrument, Term	4 years
Line of Credit Facility, Current Borrowing Capacity				73,000,000
Stated interest rate			4.10%
Silvertip [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount				$ 100,000,000
Base Rate [Member] | Minimum | Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	1.00%
Base Rate [Member] | Maximum | Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	1.75%
London Interbank Offered Rate (LIBOR) [Member] | Minimum | Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	2.00%
London Interbank Offered Rate (LIBOR) [Member] | Maximum | Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	2.75%

Supplemental Guarantor Inform83

Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Revenues		$ 163,267	$ 185,554
Costs applicable to sales	[1]	99,340	114,490
Amortization		30,777	38,693
General and Administrative Expense		8,804	10,125
Exploration		6,683	5,252
Pre-development, reclamation, and other		4,225	3,837
Total costs and expenses		149,829	172,397
Gain (loss) on derivative instruments		4,987	(1,200)
Other, net		180	20,799
Interest expense, net		(5,965)	(3,579)
Total other income (expense), net		(798)	16,020
Total		12,640	29,177
Income and mining tax benefit (expense)		(11,949)	(10,878)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		691	18,299
Income (Loss) from Equity Method Investments		0	0
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		550	364
Net income (loss)		1,241	18,663
Unrealized gain (loss) on available for sale securities		(278)	(2,182)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax		0	121
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		0	1,471
Other comprehensive income (loss)		(278)	(590)
COMPREHENSIVE INCOME (LOSS)		963	18,073
Revenue		163,267	185,554
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenues		93,230	107,194
Costs applicable to sales		68,245	71,202
Amortization		14,205	18,104
General and Administrative Expense		3	24
Exploration		2,245	1,727
Pre-development, reclamation, and other		1,947	1,781
Total costs and expenses		86,645	92,838
Gain (loss) on derivative instruments		(292)	(1,200)
Other, net		(137)	5,458
Interest expense, net		(353)	(175)
Total other income (expense), net		(782)	4,083
Total		5,803	18,439
Income and mining tax benefit (expense)		(1,120)	(2,434)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		4,683	16,005
Income (Loss) from Equity Method Investments		(38)	70
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		(284)	0
Net income (loss)		4,361	16,075
Unrealized gain (loss) on available for sale securities		0	(279)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax			121
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax			(369)
Other comprehensive income (loss)			(527)
COMPREHENSIVE INCOME (LOSS)		4,361	15,548
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenues		70,037	78,360
Costs applicable to sales		31,095	43,288
Amortization		16,326	20,265
General and Administrative Expense		4	(5)
Exploration		3,979	3,189
Pre-development, reclamation, and other		1,872	1,881
Total costs and expenses		53,276	68,618
Gain (loss) on derivative instruments		0	0
Other, net		(106)	1,533
Interest expense, net		(4,248)	(1,539)
Total other income (expense), net		(4,354)	(6)
Total		12,407	9,736
Income and mining tax benefit (expense)		(12,467)	(10,032)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		(60)	(296)
Income (Loss) from Equity Method Investments		(170)	(67)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		(175)	364
Net income (loss)		(405)	1
Unrealized gain (loss) on available for sale securities		0	0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax			0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax			0
Other comprehensive income (loss)			0
COMPREHENSIVE INCOME (LOSS)		(405)	1
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		0	0
Costs applicable to sales		0	0
Amortization		246	324
General and Administrative Expense		8,797	10,106
Exploration		459	336
Pre-development, reclamation, and other		406	175
Total costs and expenses		9,908	10,941
Gain (loss) on derivative instruments		5,279	0
Other, net		4,142	15,222
Interest expense, net		(5,083)	(3,279)
Total other income (expense), net		4,338	11,943
Total		(5,570)	1,002
Income and mining tax benefit (expense)		1,638	1,588
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		(3,932)	2,590
Income (Loss) from Equity Method Investments		4,164	16,073
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		1,009	0
Net income (loss)		1,241	18,663
Unrealized gain (loss) on available for sale securities		(278)	(2,182)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax			121
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax			1,471
Other comprehensive income (loss)			(590)
COMPREHENSIVE INCOME (LOSS)		963	18,073
Eliminations
Condensed Financial Statements, Captions [Line Items]
Revenues		0	0
Costs applicable to sales		0	0
Amortization		0	0
General and Administrative Expense		0	0
Exploration		0	0
Pre-development, reclamation, and other		0	0
Total costs and expenses		0	0
Gain (loss) on derivative instruments		0	0
Other, net		(3,719)	(1,414)
Interest expense, net		3,719	1,414
Total other income (expense), net		0	0
Total		0	0
Income and mining tax benefit (expense)		0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		0	0
Income (Loss) from Equity Method Investments		(3,956)	(16,076)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		0	0
Net income (loss)		(3,956)	(16,076)
Unrealized gain (loss) on available for sale securities		0	279
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax			(121)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax			369
Other comprehensive income (loss)			527
COMPREHENSIVE INCOME (LOSS)		$ (3,956)	$ (15,549)
[1]	Excludes amortization.

Supplemental Guarantor Inform84

Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	$ 15,541	$ 43,936
Cash Provided by (Used in) Operating Activities, Discontinued Operations	(2,690)	11,335
Cash provided by (used in) operating activities	12,851	55,271
Capital expenditures	(42,345)	(23,591)
Proceeds from the sale of assets	60	15,019
Purchase of short term investments and equity securities	(361)	(1,016)
Sales and maturities of short-term investments	1,619	10,020
Payments for (Proceeds from) Other Investing Activities	(65)	(14)
Payments to Acquire Interest in Subsidiaries and Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	(41,092)	418
Cash Provided by (Used in) Investing Activities, Discontinued Operations	(28,470)	(388)
CASH USED IN INVESTING ACTIVITIES	(69,562)	30
Proceeds from Issuance of Unsecured Debt	15,000	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(18,449)	(3,206)
Proceeds From Repayment Intercompany Borrowings	0	0
Proceeds from (Payments for) Other Financing Activities	(4,606)	(3,247)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	(8,055)	(6,453)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	(22)	(20)
Net Cash Provided by (Used in) Financing Activities	(8,077)	(6,473)
Effect of exchange rate changes on cash and cash equivalents	557	555
Net Cash Provided by (Used in) Discontinued Operations	(32,930)	5,527
CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingNetCashProvidedByUsedInDiscontinuedOperationsAssetsHeldForSale	(31,301)	43,856
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	172,101	170,457	$ 203,402	$ 126,601
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	(7,938)	(4,815)
Cash Provided by (Used in) Operating Activities, Discontinued Operations	0	0
Cash provided by (used in) operating activities	(7,938)	(4,815)
Capital expenditures	(83)	(319)
Proceeds from the sale of assets	0	8,916
Purchase of short term investments and equity securities	(361)	(1,016)
Sales and maturities of short-term investments	1,067	9,157
Payments for (Proceeds from) Other Investing Activities	0	46
Payments to Acquire Interest in Subsidiaries and Affiliates	(4,162)	(12,454)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	(3,539)	4,330
Cash Provided by (Used in) Investing Activities, Discontinued Operations	0	0
CASH USED IN INVESTING ACTIVITIES	(3,539)	4,330
Proceeds from Issuance of Unsecured Debt	15,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	0	0
Proceeds From Repayment Intercompany Borrowings	20,381	(14,318)
Proceeds from (Payments for) Other Financing Activities	(4,606)	(3,247)
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	(9,987)	11,071
Cash Provided by (Used in) Financing Activities, Discontinued Operations	0	0
Net Cash Provided by (Used in) Financing Activities	(9,987)	11,071
Effect of exchange rate changes on cash and cash equivalents	0	0
Net Cash Provided by (Used in) Discontinued Operations	0	0
CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingNetCashProvidedByUsedInDiscontinuedOperationsAssetsHeldForSale	(21,464)	10,586
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	34,569	76,923	56,033	66,337
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	5,395	17,183
Cash Provided by (Used in) Operating Activities, Discontinued Operations	0	0
Cash provided by (used in) operating activities	5,395	17,183
Capital expenditures	(14,341)	(16,975)
Proceeds from the sale of assets	60	6,151
Purchase of short term investments and equity securities	0	0
Sales and maturities of short-term investments	552	863
Payments for (Proceeds from) Other Investing Activities	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates	37	(70)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	(13,692)	(10,031)
Cash Provided by (Used in) Investing Activities, Discontinued Operations	0	0
CASH USED IN INVESTING ACTIVITIES	(13,692)	(10,031)
Proceeds from Issuance of Unsecured Debt	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(2,395)	(1,874)
Proceeds From Repayment Intercompany Borrowings	10,946	9,325
Proceeds from (Payments for) Other Financing Activities	0	0
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	(13,341)	(11,199)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	0	0
Net Cash Provided by (Used in) Financing Activities	(13,341)	(11,199)
Effect of exchange rate changes on cash and cash equivalents	2	0
Net Cash Provided by (Used in) Discontinued Operations	0	0
CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingNetCashProvidedByUsedInDiscontinuedOperationsAssetsHeldForSale	(21,636)	(4,047)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	30,603	45,976	52,239	50,023
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	22,040	47,644
Cash Provided by (Used in) Operating Activities, Discontinued Operations	(2,690)	11,335
Cash provided by (used in) operating activities	19,350	58,979
Capital expenditures	(27,921)	(6,297)
Proceeds from the sale of assets	0	(48)
Purchase of short term investments and equity securities	0	0
Sales and maturities of short-term investments	0	0
Payments for (Proceeds from) Other Investing Activities	(65)	(60)
Payments to Acquire Interest in Subsidiaries and Affiliates	169	67
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	(27,817)	(6,338)
Cash Provided by (Used in) Investing Activities, Discontinued Operations	(28,470)	(388)
CASH USED IN INVESTING ACTIVITIES	(56,287)	(6,726)
Proceeds from Issuance of Unsecured Debt	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(16,054)	(1,332)
Proceeds From Repayment Intercompany Borrowings	(31,327)	8,612
Proceeds from (Payments for) Other Financing Activities	0	0
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	15,273	(9,944)
Cash Provided by (Used in) Financing Activities, Discontinued Operations	(22)	(20)
Net Cash Provided by (Used in) Financing Activities	15,251	(9,964)
Effect of exchange rate changes on cash and cash equivalents	555	555
Net Cash Provided by (Used in) Discontinued Operations	(32,930)	5,527
CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingNetCashProvidedByUsedInDiscontinuedOperationsAssetsHeldForSale	11,799	37,317
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	106,929	47,558	95,130	10,241
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	(3,956)	(16,076)
Cash Provided by (Used in) Operating Activities, Discontinued Operations	0	0
Cash provided by (used in) operating activities	(3,956)	(16,076)
Capital expenditures	0	0
Proceeds from the sale of assets	0	0
Purchase of short term investments and equity securities	0	0
Sales and maturities of short-term investments	0	0
Payments for (Proceeds from) Other Investing Activities	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates	3,956	12,457
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	3,956	12,457
Cash Provided by (Used in) Investing Activities, Discontinued Operations	0	0
CASH USED IN INVESTING ACTIVITIES	3,956	12,457
Proceeds from Issuance of Unsecured Debt	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	0	0
Proceeds From Repayment Intercompany Borrowings	0	3,619
Proceeds from (Payments for) Other Financing Activities	0	0
Net Cash Provided by (Used in) Financing Activities, Continuing Operations	0	3,619
Cash Provided by (Used in) Financing Activities, Discontinued Operations	0	0
Net Cash Provided by (Used in) Financing Activities	0	3,619
Effect of exchange rate changes on cash and cash equivalents	0	0
Net Cash Provided by (Used in) Discontinued Operations	0	0
CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingNetCashProvidedByUsedInDiscontinuedOperationsAssetsHeldForSale	0	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 0	$ 0	$ 0	$ 0

Supplemental Guarantor Inform85

Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 159,643	$ 192,032
Receivables	35,864	19,069
Ore on leach pads	75,584	73,752
Inventory, Net	61,723	58,230
Prepaid expenses and other	18,203	15,053
Disposal Group, Including Discontinued Operation, Assets, Current	0	91,421
Current assets	351,017	449,557
Property, plant and equipment, net	266,157	254,737
Mining properties, net	843,821	829,569
Ore on leach pads	67,430	65,393
Restricted assets	22,116	20,847
Equity and debt securities	37,317	34,837
Receivables	55,428	28,750
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Other Assets, Noncurrent	18,649	17,485
TOTAL ASSETS	1,661,935	1,701,175
Accounts payable	44,864	48,592
Accrued liabilities and other	105,149	94,930
Debt	17,040	30,753
Reclamation	3,777	3,777
Disposal Group, Including Discontinued Operation, Liabilities, Current	0	50,677
Liabilities, Current	170,830	228,729
Debt	396,984	380,569
Reclamation	119,154	117,055
Deferred tax liabilities	105,224	105,148
Other long-term liabilities	55,432	54,697
Intercompany Payable Receivable	0	0
Non-current liabilities	676,794	657,469
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 186,176,237 issued and outstanding at March 31, 2018 and 185,637,724 at December 31, 2017	1,862	1,856
Additional paid-in capital	3,355,710	3,357,345
Accumulated deficit	(2,542,898)	(2,546,743)
Accumulated other comprehensive income (loss)	(363)	2,519
Stockholders' equity	814,311	814,977
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,661,935	1,701,175
Accrued Income Taxes, Current	36,642	25,788
Interest Payable, Current	5,594	1,513
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	22,111	44,662
Receivables	15,895	137
Ore on leach pads	0	0
Inventory, Net	0	0
Prepaid expenses and other	8,892	7,824
Disposal Group, Including Discontinued Operation, Assets, Current		0
Current assets	46,898	52,623
Property, plant and equipment, net	3,141	4,007
Mining properties, net	6,980	0
Ore on leach pads	0	0
Restricted assets	14,352	13,251
Equity and debt securities	36,772	33,569
Receivables	24,047	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	423,448	422,074
Other Assets, Noncurrent	317,146	320,335
TOTAL ASSETS	872,784	845,859
Accounts payable	3,419	3,607
Accrued liabilities and other	16,643	13,205
Debt	0	0
Reclamation	0	0
Disposal Group, Including Discontinued Operation, Liabilities, Current		0
Liabilities, Current	20,062	16,812
Debt	360,280	345,088
Reclamation	0	0
Deferred tax liabilities	2,641	4,110
Other long-term liabilities	2,602	2,311
Intercompany Payable Receivable	(327,111)	(337,439)
Non-current liabilities	38,412	14,070
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 186,176,237 issued and outstanding at March 31, 2018 and 185,637,724 at December 31, 2017	1,862	1,856
Additional paid-in capital	3,355,710	3,357,345
Accumulated deficit	(2,542,899)	(2,546,743)
Accumulated other comprehensive income (loss)	(363)	2,519
Stockholders' equity	814,310	814,977
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	872,784	845,859
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	30,603	52,239
Receivables	5,084	7,922
Ore on leach pads	75,584	73,752
Inventory, Net	31,512	29,769
Prepaid expenses and other	3,193	2,816
Disposal Group, Including Discontinued Operation, Assets, Current		0
Current assets	145,976	166,498
Property, plant and equipment, net	165,578	161,487
Mining properties, net	219,000	216,281
Ore on leach pads	67,430	65,393
Restricted assets	227	227
Equity and debt securities	545	1,268
Receivables	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	332	223
Other Assets, Noncurrent	11,820	11,040
TOTAL ASSETS	610,908	622,417
Accounts payable	21,634	24,534
Accrued liabilities and other	12,059	19,262
Debt	9,977	9,215
Reclamation	2,313	2,313
Disposal Group, Including Discontinued Operation, Liabilities, Current		0
Liabilities, Current	45,983	55,324
Debt	31,116	28,313
Reclamation	83,392	82,021
Deferred tax liabilities	4,978	5,127
Other long-term liabilities	2,751	3,063
Intercompany Payable Receivable	307,016	317,759
Non-current liabilities	429,253	436,283
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 186,176,237 issued and outstanding at March 31, 2018 and 185,637,724 at December 31, 2017	19,630	19,630
Additional paid-in capital	145,024	149,194
Accumulated deficit	(28,982)	(34,551)
Accumulated other comprehensive income (loss)	0	(3,463)
Stockholders' equity	135,672	130,810
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	610,908	622,417
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	106,929	95,131
Receivables	14,885	11,010
Ore on leach pads	0	0
Inventory, Net	30,211	28,461
Prepaid expenses and other	6,118	4,413
Disposal Group, Including Discontinued Operation, Assets, Current		91,421
Current assets	158,143	230,436
Property, plant and equipment, net	97,438	89,243
Mining properties, net	617,841	613,288
Ore on leach pads	0	0
Restricted assets	7,537	7,369
Equity and debt securities	0	0
Receivables	31,381	28,750
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	694	(18)
Other Assets, Noncurrent	3,431	2,854
TOTAL ASSETS	916,465	971,922
Accounts payable	19,811	20,451
Accrued liabilities and other	76,447	62,463
Debt	7,063	21,538
Reclamation	1,464	1,464
Disposal Group, Including Discontinued Operation, Liabilities, Current		50,677
Liabilities, Current	104,785	156,593
Debt	319,336	323,912
Reclamation	35,762	35,034
Deferred tax liabilities	97,605	95,911
Other long-term liabilities	50,079	49,323
Intercompany Payable Receivable	20,095	19,680
Non-current liabilities	522,877	523,860
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 186,176,237 issued and outstanding at March 31, 2018 and 185,637,724 at December 31, 2017	195,020	195,020
Additional paid-in capital	1,882,610	1,885,046
Accumulated deficit	(1,788,827)	(1,788,597)
Accumulated other comprehensive income (loss)	0	0
Stockholders' equity	288,803	291,469
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	916,465	971,922
Eliminations
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0
Receivables	0	0
Ore on leach pads	0	0
Inventory, Net	0	0
Prepaid expenses and other	0	0
Disposal Group, Including Discontinued Operation, Assets, Current		0
Current assets	0	0
Property, plant and equipment, net	0	0
Mining properties, net	0	0
Ore on leach pads	0	0
Restricted assets	0	0
Equity and debt securities	0	0
Receivables	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(424,474)	(422,279)
Other Assets, Noncurrent	(313,748)	(316,744)
TOTAL ASSETS	(738,222)	(739,023)
Accounts payable	0	0
Accrued liabilities and other	0	0
Debt	0	0
Reclamation	0	0
Disposal Group, Including Discontinued Operation, Liabilities, Current		0
Liabilities, Current	0	0
Debt	(313,748)	(316,744)
Reclamation	0	0
Deferred tax liabilities	0	0
Other long-term liabilities	0	0
Intercompany Payable Receivable	0	0
Non-current liabilities	(313,748)	(316,744)
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 186,176,237 issued and outstanding at March 31, 2018 and 185,637,724 at December 31, 2017	(214,650)	(214,650)
Additional paid-in capital	(2,027,634)	(2,034,240)
Accumulated deficit	1,817,810	1,823,148
Accumulated other comprehensive income (loss)	0	3,463
Stockholders' equity	(424,474)	(422,279)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ (738,222)	$ (739,023)

Commitments and Contigencies (D

Commitments and Contigencies (Details Textual)	3 Months Ended
	Mar. 31, 2018USD ($)t	Oct. 31, 2017USD ($)	Oct. 02, 2014USD ($)
Palmarejo gold production royalty
Business Acquisition [Line Items]
Production to be sold, percent	50.00%		50.00%
Price per ounce under agreement	$ 800		$ 800
Aggregate deposit to be received	20,000,000		$ 22,000,000
Palmarejo Gold Stream Agreement, Deferred Revenue Unamortized Balance	$ 14,300,000
JDS Silver Holdings Ltd.
Business Acquisition [Line Items]
Silvertip acquisition contingent consideration		$ 50,000,000
Long-term Purchase Commitment, Milestones	2
JDS Silver Holdings Ltd. | First Milestone
Business Acquisition [Line Items]
Silvertip acquisition contingent consideration		25,000,000
Sustained minim and milling per day (in tones) | t	1,000
JDS Silver Holdings Ltd. | Second Milestone
Business Acquisition [Line Items]
Silvertip acquisition contingent consideration		25,000,000
Maximum payment		$ 25,000,000
Tonnes of Resource Added | t	3,700,000
Amount of resource required (in tonnes) | t	300,000
Commitment amount per resource amount reached	$ 5,000,000
Minimum Resource Tonnes Milestone | t	2,500,000

Discontinued Operations - State

Discontinued Operations - Statements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Income (loss) from discontinued operations	$ 550	$ 364
Cash provided by (used in) operating activities, discontinued operations	(2,690)	11,335
Cash provided by (used in) investing activities, discontinued operations	(28,470)	(388)
Held-for-sale
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Revenue	12,346	20,584
Costs applicable to sales	12,269	18,222
Amortization	0	1,411
General and administrative	41	8
Pre-development, reclamation, and other	265	744
Interest expense, net of capitalized interest	(3)	(6)
Disposal Group, Including Discontinued Operations, Other Income (Expense)	(260)	340
Pretax profit (loss) on discontinued operations related to major classes of pretax profit (loss)	(492)	533
Pretax gain on the disposal of the discontinued operation	1,525	0
Total pretax gain or loss on discontinued operations	1,033	533
Income and mining tax (expense) benefit	(483)	(169)
Cash provided by (used in) operating activities, discontinued operations	(2,690)	11,335
Cash provided by (used in) investing activities, discontinued operations	$ (28,470)	$ (388)

Discontinued Operations - Narra

Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	Dec. 22, 2017	Mar. 31, 2018	Mar. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash provided by (used in) operating activities, discontinued operations		$ (2,690)	$ 11,335
Cash provided by (used in) investing activities, discontinued operations		(28,470)	(388)
Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net smelter returns royalty (percentage)	2.00%
Net smelter returns royalty, estimated value	$ 7,100
Value added tax receivable, outstanding	12,700
Promissory note receivable	26,900
Expected post-closing obligations	$ 5,700
Cash provided by (used in) operating activities, discontinued operations		(2,690)	11,335
Cash provided by (used in) investing activities, discontinued operations		(28,470)	(388)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax		$ 1,525	$ 0

Additional Balance Sheet Deta89

Additional Balance Sheet Detail and Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Other Liabilities Disclosure [Abstract]
Other Accrued Liabilities	$ 17,174	$ 12,323
Accrued Income Taxes, Current	36,642	25,788
Accrual for Taxes Other than Income Taxes, Current	5,644	4,354
Interest Payable, Current	5,594	1,513
Accrued Salaries, Current	15,552	26,559
Business Combination, Contingent Consideration, Liability, Current	24,543	24,393
Accrued liabilities and other	$ 105,149	$ 94,930

Additional Balance Sheet Deta90

Additional Balance Sheet Detail and Supplemental Cash Flow Information (Details 1) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Supplemental Cash Flow Information [Abstract]
Cash and Cash Equivalents, at Carrying Value	$ 159,643	$ 192,032	$ 160,636
Restricted Cash Equivalents	12,458		9,821
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 172,101	$ 203,402	$ 170,457	$ 126,601