XML 33 R9.htm IDEA: XBRL DOCUMENT ﻿
v2.3.0.11

Note 4. Commitments and Contingencies | 6 Months Ended
--- | ---
Jun. 30, 2011
Commitments and Contingencies Disclosure [Text Block] | Note 4. Commitments and Contingencies Bunker Hill Superfund Site and Related Environmental Claims Recent Developments On June 13, 2011, a Consent Decree settling environmental litigation and related claims involving Hecla Limited pertaining to historic releases of mining wastes in the Coeur d’Alene Basin was lodged with the U.S. District Court in Idaho. The Consent Decree among Hecla Limited and certain affiliates and the United States, the Coeur d’Alene Indian Tribe, and the State of Idaho (“Plaintiffs”) contains comprehensive terms of settlement with respect to the Coeur d’Alene Basin environmental litigation and related claims (including under the 1994 Box Consent Decree described below). The proposed financial terms require that Hecla Limited pay, in the aggregate, $263.4 million to the Plaintiffs over approximately three years. Further details of the proposed financial terms of settlement are discussed below under “Accrual for Basin Claims.” The Consent Decree was published in the Federal Register on June 17, 2011, which began a period during which the public was allowed to submit comments relating to the proposed Consent Decree. On July 26, 2011 the Court issued an Order setting (i) August 24, 2011 as the deadline for motions regarding the Consent Decree and (ii) September 8, 2011 as the date for the hearing on entry of the Consent Decree. We anticipate that the Plaintiffs will file a motion with the Court seeking entry of the Consent Decree during the third quarter of 2011 in compliance with the Court's Order. If the Court enters the Consent Decree, Hecla Limited will have resolved all of Plaintiffs’ existing claims under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (“CERCLA”) (and certain other statutes) for past response costs, future environmental remediation costs, and natural resource damages related to historic releases of mining wastes in the Coeur d’Alene River Basin, as well as all remaining obligations of Hecla Limited under the 1994 Box Consent Decree. Hecla is hopeful that the settlement will be completed and effective during the third quarter of 2011, however, there can be no assurance that the Consent Decree will be entered by the Court and thereby become final and binding. History of Coeur d’Alene River Basin Environmental Claims In July 1991, the Coeur d’Alene Indian Tribe (“Tribe”) brought a lawsuit under CERCLA in Idaho Federal District Court against our wholly owned subsidiary Hecla Limited, ASARCO Incorporated (“ASARCO”) and a number of other mining companies asserting claims for damages to natural resources downstream from a rectangular 21-square-mile site located near Kellogg, Idaho (the “Box”) within the Bunker Hill Superfund site over which the Tribe alleges some ownership or control. The Tribe’s natural resource damage litigation was consolidated with the United States’ litigation described below. Because of various bankruptcies and settlements of other defendants, Hecla Limited is the only remaining defendant in the Tribe’s natural resource damages case. In 1994, Hecla Limited, as a potentially responsible party under CERCLA, entered into a Consent Decree with the U.S. Environmental Protection Agency (“EPA”) and the State of Idaho concerning environmental remediation obligations in the Box. The 1994 Consent Decree (the “Box Decree” or “Decree”) settled Hecla Limited’s response-cost responsibility under CERCLA in the Box. Parties to the Decree included Hecla Limited, Sunshine Mining and Refining Company and ASARCO. In March 1996, the United States filed a lawsuit in Idaho Federal District Court against certain mining companies, including Hecla Limited, that conducted historic mining operations in the Silver Valley of north Idaho. The lawsuit asserted claims under CERCLA and the Clean Water Act, and seeks recovery for alleged damages to, or loss of, natural resources located in the Coeur d’Alene River Basin (“Basin”) in north Idaho for which the United States asserts it is the trustee under CERCLA. The lawsuit claimed that the defendants’ historic mining activity resulted in releases of hazardous substances and damaged natural resources within the Basin. The suit also sought declaratory relief as to the defendants’ joint and several liability for response costs under CERCLA for historic mining impacts in the Basin outside the Box. Hecla Limited has asserted a number of defenses to the United States’ claims. In May 1998, the EPA announced that it had commenced a Remedial Investigation/Feasibility Study under CERCLA for the Basin, including Lake Coeur d’Alene (but excluding the Box), in support of its response cost claims asserted in the United States’ March 1996 lawsuit. In September 2002, the EPA issued the interim Record of Decision (“ROD”) for the Basin proposing a $359 million Basin-wide remediation plan to be implemented over 30 years and establishing a review process at the end of the 30-year period to determine if further remediation would be appropriate. In 2009, the EPA commenced a process to adopt certain changes to the ecological remediation plan for the upper portion of the Basin only (in contrast to the 2002 ROD which addressed the entire Basin, including the upper and lower portions). In February 2010, the EPA issued a draft focused feasibility study report which presents and evaluates alternatives for remediation of the upper portions of the Basin. On July 12, 2010, the EPA released for public comment its proposed plan for remediation of the upper portion of the Basin. The public comment period concluded on November 23, 2010. Although a final remedy has not been selected, the proposed remediation plan was originally estimated to cost, in net present value terms, approximately $1.3 billion, including work in the Box. However, recently the EPA has made public statements indicating that the proposed remediation plan could have a reduced scope (and cost) from what EPA released in July 2010. In January 2001, Phase I of the trial on the consolidated Tribe’s and the United States’ claims commenced, and was concluded in July 2001. Phase I addressed the extent of liability, if any, of the defendants and the allocation of liability among the defendants and others, including the United States. In September 2003, the Court issued its Phase I ruling, holding that Hecla Limited has some liability for Basin environmental conditions. The Court refused to hold the defendants jointly and severally liable for historic tailings releases and instead allocated a 22% share of liability to ASARCO and a 31% share of liability to Hecla Limited for impacts resulting from tailings releases. The portion of natural resource damages, past costs and remediation costs to which this 31% applies, other cost allocations applicable to Hecla Limited, and the Court’s determination whether the EPA’s remediation proposals satisfy CERCLA requirements, were to be addressed in Phase II of the litigation (if the case is not settled). The Court also left issues on the deference, if any, to be afforded the EPA’s remediation plan, for Phase II. The Court found that while certain Basin natural resources had been injured, “there has been an exaggerated overstatement” by the plaintiffs of Basin environmental conditions and the mining impact. As stated in their own filings, the United States’ and the Tribe’s claims for natural resource damages for Phase II may be in the range of $2.0 billion to $3.4 billion. Because of a number of factors relating to the quality and uncertainty of the United States’ and Tribe’s natural resource damage claims, Hecla Limited is currently unable to estimate what, if any, liability or range of liability it may have for these claims in the event the recently negotiated terms of settlement of the Basin environmental litigation and other claims do not become effective in a Consent Decree entered by the court. Two of the defendant mining companies, Coeur d’Alene Mines Corporation and Sunshine Mining and Refining Company, settled their liabilities in the Basin litigation during 2001. On March 13, 2009, the United States reached agreement with ASARCO concerning ASARCO’s liability in the Basin litigation. The agreement, among other things, required the payment by ASARCO of approximately $482 million to the United States or certain trusts. That agreement was approved by the Bankruptcy Court – ASARCO had previously filed for Chapter 11 bankruptcy in August 2005 – and the U.S. Federal District Court in Texas in late 2009. As a result of approval of ASARCO’s Plan of Reorganization in the bankruptcy proceeding, and the distribution of approximately $482 million, plus interest, to the United States or certain trusts in December 2009, ASARCO was dismissed as a defendant in the Idaho Federal Court litigation in September 2010. This left Hecla Limited as the only defendant remaining in the Basin litigation. Because of the nature of ASARCO’s settlement and of the bankruptcy proceeding, Hecla Limited does not believe the Basin environmental claims asserted against ASARCO in the bankruptcy proceeding or settlement distribution amounts are necessarily indicative of Hecla Limited’s potential liability in the Basin litigation if the Consent Decree is not entered by the Court. Phase II of the trial was scheduled to commence in January 2006. However, as a result of ASARCO’s bankruptcy filing, the Idaho Federal Court vacated the January 2006 trial date and stayed the litigation (the stay remains in effect as of the date of this report). Hecla Limited anticipates that in the event the settlement and Consent Decree do not become effective, the Court will schedule a status conference to address lifting the stay and rescheduling the Phase II trial date. For more than a year Hecla Limited has been involved in settlement negotiations with representatives of the United States, the State of Idaho and the Tribe. Those settlement negotiations culminated in a comprehensive settlement reflected in a Consent Decree lodged with the Court on June 13, 2011. We believe that the United States is in the process of evaluating any public comments it received on the Consent Decree. We currently expect the Plaintiffs to seek Court approval and entry of the Consent Decree some time during the third quarter of 2011. There can be no assurance that the Consent Decree will be entered and become final and binding. Accrual for Basin Claims Assuming the Court enters the Consent Decree with the currently proposed financial terms, Hecla Limited would be obligated for the following payments:
| ● | $102 million of cash, $55.5 million of cash or Hecla Mining Company common stock, and approximately $9.5 million in proceeds from series 3 warrants received by Hecla through April 12, 2011 and referred to below, all payable 30 days after entry of the Consent Decree;
| ● | $25 million of cash 30 days after the first anniversary of entry of the Consent Decree;
| ● | $15 million of cash 30 days after the second anniversary of entry of the Consent Decree; and
| ● | Approximately $56.4 million by August 2014, as quarterly payments of the proceeds from the exercise of any outstanding Series 1 and Series 3 warrants (which have an exercise price of between $2.45 and $2.50 per share) during the quarter, with the remaining balance, if any, due in August 2014.
The foregoing payments of $25 million, $15 million, and $56.4 million require third party surety. Further, between April 15, 2011 and June 13, 2011 (the date the Consent Decree was lodged with the Court), $197.5 million of the foregoing payments accrued interest at the annual rate of 3.25%, totaling $1,069,792 of interest owed by Hecla Limited. The $25 million and $15 million payments would also accrue interest from the date the Consent Decree is entered by the Court until payment at the Superfund rate (currently 0.69%). In addition to the foregoing payments, under the terms of the Consent Decree Hecla Limited is obligated to provide a limited amount of land it currently owns to be used as a waste repository site. The interest in the land to be provided was acquired by Hecla Limited in prior periods and requires no further payments of cash. As a result of the foregoing developments in the Basin litigation settlement discussions, we have accrued a total of $262.2 million for all of Hecla Limited’s environmental obligations in the entire Basin (including the Box) relating to historic mining activities in the Basin. The $262.2 million represents the net present value of a proposed settlement totaling $263.4 million. The amount of our accrual has increased since September 30, 2010 by $193.2 million, as a result of the negotiations on financial terms of a potential settlement. This increase in our accrual from prior periods results from several factors impacting the determination of an estimate of Hecla Limited’s Basin liability. These factors, which are addressed in the Consent Decree, include: (i) as a result of work completed, and information learned by us in the fourth quarter of 2010, we expected the cost of future remediation and past response costs in the upper Basin to increase from previous estimates; (ii) the Consent Decree addresses the entire Basin, including the lower Basin, for which we did not previously know the extent of any future remediation plans, other than the EPA announced that it plans to issue a ROD amendment for the lower Basin in the future, which would include a lower Basin remediation plan for which Hecla Limited may have some further liability absent the entry of the Consent Decree; and (iii) inclusion of natural resource damages in the Consent Decree, for which we were previously unable to estimate any range of liability (however, as stated in their own filings, the United States’ and the Tribe’s claims for natural resource damages ranged in the billions of dollars). Although we have reached a settlement with the Plaintiffs in the Coeur d’Alene Basin litigation and for related claims, the settlement is not binding unless the Consent Decree is approved and entered by the Court. There can be no assurance that the Consent Decree will be entered and become final and binding. In the event the Consent Decree is not entered, Hecla Limited’s liability and future accruals would be based on other factors, which would include (1) the EPA’s proposed ROD amendment which includes a remediation plan originally estimated by the EPA to cost $1.3 billion, in net present value terms, (2) yet-to-be determined future remediation in other parts of the Basin, (3) prior orders issued by the Court in Phase I of the Basin litigation, including its September 2003 ruling, and (4) other factors and issues that would be addressed by the Court in Phase II of the trial. Despite efforts to reasonably estimate Hecla Limited’s potential liability in the Basin, there can be no assurance that we have accurately estimated such liability, or that the accrual actually represents the total amount that the United States has spent in the past and that Hecla Limited will be required to spend in the future as a result of being found to have some liability for Basin environmental conditions. In addition, billions of dollars of natural resource damages are sought in the Basin litigation. Thus, if the Consent Decree is not entered by the Court, Hecla Limited may have liability in excess of the current accrual. Accordingly, in such event, our accrual could change, perhaps rapidly and materially, depending on a number of factors, including, but not limited to, any amendments to the ROD, information obtained or developed by Hecla Limited prior to Phase II of the trial and its outcome, settlement negotiations, and any interim Court determinations. Failure to fully and finally settle the Basin litigation and other claims through entry of a Consent Decree could be materially adverse to Hecla Limited’s and Hecla Mining Company’s financial results or financial condition. Insurance Coverage In 1991, Hecla Limited initiated litigation in the Idaho District Court, County of Kootenai, against a number of insurance companies that provided comprehensive general liability insurance coverage to Hecla Limited and its predecessors. Hecla Limited believes the insurance companies have a duty to defend and indemnify Hecla Limited under their policies of insurance for all liabilities and claims asserted against it by the EPA and the Tribe under CERCLA related to the Box and the Basin. In 1992, the Idaho State District Court ruled that the primary insurance companies had a duty to defend Hecla Limited in the Tribe’s lawsuit. During 1995 and 1996, Hecla Limited entered into settlement agreements with a number of the insurance carriers named in the litigation. Prior to 2009, Hecla Limited has received a total of approximately $7.2 million under the terms of the settlement agreements. Thirty percent (30%) of these settlements were paid to reimburse the U.S. Government for past costs under the Box Decree. Litigation is still pending against one insurer with trial suspended until the underlying environmental claims against Hecla Limited are resolved or settled. The remaining insurer in the litigation, along with a second insurer not named in the litigation, is providing Hecla Limited with a partial defense in all Basin environmental litigation. As of June 30, 2011, Hecla Limited has not recorded a receivable or reduced its accrual for reclamation and closure costs to reflect the receipt of any potential insurance proceeds. BNSF Railway Company Claim In early November 2008, BNSF Railway Company (“BNSF”) submitted a contribution claim under CERCLA against Hecla Limited for approximately $52,000 in past costs BNSF incurred in investigation of environmental conditions at the Wallace Yard near Wallace, Idaho. BNSF asserts that a portion of the Wallace Yard site includes the historic Hercules Mill owned and operated by Hercules Mining Company and that Hecla Limited is a successor to Hercules Mining Company. BNSF proposes that we reimburse them for the $52,000 in past costs and agree to pay all future clean up for the Hercules mill portion of the site, estimated to be $291,000, and 12.5% of any other site costs that cannot be apportioned. In April 2010, a settlement among Union Pacific Railroad, BNSF, and the State of Idaho and the United States on behalf of the EPA for cleanup of the Wallace Yard and nearby spur lines was approved in federal court. We believe construction related to the cleanup occurred in 2010. Hecla Limited requested and received additional information from BNSF regarding the nature of its claim; however, we do not believe that the outcome of this claim will have a material adverse effect on Hecla Limited’s or our results from operations or financial position. Hecla Limited has not recorded a liability relating to the claim as of June 30, 2011. Rio Grande Silver Guaranty On February 21, 2008, our wholly-owned subsidiary, Rio Grande Silver Inc. (“Rio”), entered into an agreement with Emerald Mining & Leasing, LLC (“EML”) and Golden 8 Mining, LLC (“G8”) to acquire the right to earn-in to a 70% interest in the San Juan Silver Joint Venture, which holds a land package in the Creede Mining District of Colorado. On October 24, 2008, Rio entered into an amendment to the agreement which delays the incurrence of qualifying expenses to be paid by Rio pursuant to the original agreement. In connection with the amended agreement, we are required to guarantee certain environmental remediation-related obligations of EML to Homestake Mining Company of California (“Homestake”) up to a maximum liability to us of $2.5 million. As of June 30, 2011, we have not been required to make any payments pursuant to the guaranty. We may be required to make payments in the future, limited to the $2.5 million maximum liability, should EML fail to meet its obligations to Homestake (which has since been acquired by Barrick Gold Corp.). However, to the extent that any payments are made by us under the guaranty, EML, in addition to other parties named in the amended agreement, have jointly and severally agreed to reimburse and indemnify us for any such payments. We have not recorded a liability relating to the guaranty as of June 30, 2011. Lucky Friday Water Permit Exceedances In late 2008 and during 2009, Hecla Limited experienced a number of alleged water permit exceedances for water discharges at its Lucky Friday unit. The 2008 alleged violations resulted in Hecla Limited entering into a Consent Agreement and Final Order (“CAFO”) and a Compliance Order with the EPA in April 2009, which included an extended compliance timeline. In connection with the CAFO, Hecla Limited agreed to pay an administrative penalty to the EPA of $177,500 to settle any liability for such exceedances. The 2009 alleged violations were the subject of a December 2010 letter from the EPA informing Hecla Limited that EPA is prepared to seek civil penalties for these alleged violations, as well as for alleged unpermitted discharges of waste water in 2010 at the Lucky Friday unit. In the same letter, the EPA invited Hecla Limited to discuss these matters with them prior to filing a complaint. In April 2011, Hecla Limited received an additional request for information from the EPA on the alleged unpermitted discharges in 2010. Hecla Limited disputes the EPA’s assertions, but has begun negotiations with the EPA in an attempt to resolve the matter, which includes additional water quality monitoring to better understand the quality and source of the alleged unpermitted discharge. Hecla Limited has undertaken efforts to bring its water discharges at the Lucky Friday unit into compliance with the permit, but cannot provide assurances that it will be able to fully comply with the permit limits in the future. States of South Dakota and Colorado Superfund Sites Related to CoCa Mines, Inc. In 1991, Hecla Limited acquired all of the outstanding common stock of CoCa Mines, Inc. (“CoCa”). Gilt Edge Mine Superfund Site In August 2008, the EPA made a formal request to CoCa for information regarding the Gilt Edge Mine Site located in Lawrence County, South Dakota, and asserted that CoCa may be liable for environmental cleanup at the site. The Gilt Edge Mine Site was explored and/or mined beginning in the 1890s. In the early 1980s, CoCa was involved in a joint venture that conducted a limited program of exploration work at the site. This joint venture terminated in 1984, and by 1985 CoCa had divested itself of any interest in the property. In July 2010 the United States informed CoCa that it intends to pursue CoCa and several other potentially responsible parties on a joint and several basis for liability for past and future response costs at Gilt Edge under CERCLA. Currently, the United States alleges that CoCa is liable based on participation in the joint venture, and that CoCa has succeeded to the liabilities of its predecessor at the site, Congdon & Carey, which may have held certain property interests at the site. As of January 2010, the EPA had allegedly incurred approximately $91 million in response costs to implement remedial measures at the Gilt Edge site, and estimates future response costs will total $72 million. Hecla Limited did not acquire CoCa until 1991, well after CoCa discontinued its involvement with the Gilt Edge site. In addition, CoCa is and always has been a separate corporate entity from Hecla Limited. Therefore, we believe that Hecla Limited is not liable for any cleanup, and if CoCa might be liable, it has limited assets with which to satisfy any such liability. In August 2010, CoCa initiated negotiations with the United States in order to reach a settlement of its liabilities at the site that accounts for CoCa’s limited financial resources. In late September 2010, in connection with these negotiations, CoCa received a request from the Department of Justice for additional information regarding its finances. CoCa provided written responses and additional information in January 2011. In April 2011, CoCa, and its parent Hecla Limited, received additional information requests related to Gilt Edge, and both entities are in the process of responding to the EPA. Nelson Tunnel/Commodore Waste Rock Pile Superfund Site In August 2009, the EPA made a formal request to CoCa for information regarding the Nelson Tunnel/Commodore Waste Rock Pile Superfund Site in Creede, Colorado. A timely response was provided and the EPA later arranged to copy additional documents. CoCa was involved in exploration and mining activities in Creede during the 1970s and the 1980s. No formal claim for response costs under CERCLA has been made against CoCa for this site. Hecla Limited did not acquire CoCa until 1991, well after CoCa discontinued its historical activities in the vicinity of the site. In addition, CoCa is and always has been a separate corporate entity from Hecla Limited. Therefore, we believe that Hecla Limited is not liable for any cleanup, and if CoCa might be liable, it has limited assets with which to satisfy any such liability. ASARCO, LLC Contribution Claim In April 2011, Hecla Mining Company was informed that a complaint was filed against us and several other mining companies in Federal District Court in Montana by ASARCO, LLC, seeking contribution and cost recovery relating to the alleged payment by ASARCO of approximately $9 million to the State of Montana and the United States in connection with ASARCO’s CERCLA liabilities in the Block P Mine and Mill Site, which is part of the Barker Hughesville Mining District, which is a Superfund site in Montana. Although we have not yet investigated the basis for ASARCO’s claims, we do not believe that the outcome of this claim will have a material adverse effect on our results from operations or financial position. We have not recorded a liability relating to the claim as of June 30, 2011. Johnny M Mine Area near San Mateo, McKinley County, New Mexico In May 2011, the EPA made a formal request to Hecla Mining Company for information regarding the Johnny M Mine Area near San Mateo, McKinley County, New Mexico, and asserted that Hecla Mining Company may be responsible under CERCLA for environmental cleanup at the site and costs the EPA has incurred at the site. Mining at the Johnny M was conducted for a limited period of time by Ranchers Exploration and Development Corporation, a predecessor of our subsidiary, Hecla Limited. In June, Hecla Limited responded to the EPA’s request. While we believe it is probable that Hecla Limited will have some amount of liability relating to the Johnny M Site, we cannot with any degree of certainty estimate the amount of such liability. Estimating the amount of such liability is not possible at this point in time for several reasons, including (but not limited to) that neither the EPA nor Hecla Limited have completed investigations of the site, the amount and type of remediation required have not yet been determined, and the existence of other potentially responsible parties (PRPs) has not yet been determined. Carpenter Snow Creek Site, Cascade County, Montana In July 2010, the EPA made a formal request to Hecla Mining Company for information regarding the Carpenter Snow Creek Superfund Site located in Cascade County, Montana. The Carpenter Snow Creek Site is located in a historic mining district, and in the early 1980s Hecla Limited leased 6 mining claims and performed limited exploration activities at the site. Hecla Limited terminated the mining lease in 1988. In June 2011, the EPA informed Hecla Limited that it believes Hecla Limited, among several other viable companies, may be liable for cleanup of the site or for costs incurred by the EPA in cleaning up the site. The EPA stated in the June 2011 letter that it has incurred approximately $4.5 million in response costs and estimated that total remediation costs may exceed $100 million. Because we have not completed investigating the basis for the EPA’s statements, we have not yet determined what, if any, potential liability Hecla Limited may have with respect to this site. However, because of our limited activities at the site, we do not believe that the outcome of the claim will have a material adverse effect on our results from operations or financial position. We have not recorded a liability relating to the site as of June 30, 2011. Other Commitments Our contractual obligations as of June 30, 2011 included approximately $5.5 million for commitments relating to capital items, along with $1.3 million for various non-capital costs, at Lucky Friday and Greens Creek. In addition, our commitments relating to open purchase orders at June 30, 2011 included approximately $5.3 million and $2.2 million, respectively, for various capital items at the Greens Creek and Lucky Friday units, and approximately $0.9 million and $0.1 million, respectively, for various non-capital costs. We also have total commitments of approximately $8.1 million relating to scheduled payments on capital leases, including interest, for equipment at our Greens Creek and Lucky Friday units (see Note 9 for more information). We had letters of credit for approximately $0.6 million outstanding as of June 30, 2011 for reclamation and workers’ compensation insurance bonding. Other Contingencies We are subject to other legal proceedings and claims not disclosed above which have arisen in the ordinary course of our business and have not been finally adjudicated. These can include, but are not limited to, legal proceedings and/or claims pertaining to environmental or safety matters. For example, in April 2011, a fatal accident occurred at the Lucky Friday Mine which is currently being investigated by Hecla and the Mine Safety Health Administration (“MSHA”). As a result of the MSHA investigation (the results of which have not yet been provided to us as of the date of this report), Hecla Limited may be issued enforcement actions as well as penalties (including monetary) from MSHA or other governmental agencies. Although there can be no assurance as to the ultimate disposition of these other matters, we believe the outcome of these other proceedings will not have a material adverse effect on our results from operations or financial position.

X
- Definition The entire disclosure for commitments and contingencies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 14 -Paragraph 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 5 -Paragraph 9, 10, 11, 12 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621 + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureTextBlock
Namespace Prefix: | us-gaap
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration