SUBSEQUENT EVENTS:	9 Months Ended
Sep. 30, 2019
SUBSEQUENT EVENTS:
SUBSEQUENT EVENTS:	NOTE 16 — SUBSEQUENT EVENTS: Dividends: On October 17, 2019, the Board of Directors authorized a dividend of $0.40 per share payable on November 21, 2019 to shareholders of record at the close of business on November 7, 2019. Tia Maria construction license: On July 15, 2019, anti-mining groups staged a violent demonstration affecting economic as well as other activities in the Islay province. These actions were followed by the filing of three complaints, sponsored by groups opposing the Tia Maria project, with the Mining Council, which is the Peruvian administrative authority responsible to resolve on these complaints. The Mining Council temporarily suspended the construction permit on August 8, 2019 until a decision is reached on the complaints. On October 7, 2019, as part of the process, the Mining Council conducted a hearing on the complaints and the Company position.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration