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SUBSEQUENT EVENTS:	3 Months Ended
	Mar. 31, 2021
SUBSEQUENT EVENTS:
SUBSEQUENT EVENTS:	NOTE 14 — SUBSEQUENT EVENTS: ​ Dividends: ​ On April 22, 2021, the Board of Directors authorized a dividend of $0.70 per share payable on May 25, 2021 to shareholders of record at the close of business on May 11, 2021. ​ Closure of IRS 2014-2016 Exam Cycle ​ The Company effectively settled the 2014 through 2016 IRS audit on April 14, 2021. Any subsequent increase or decrease in unrecognized tax benefits from the audit settlement is not expected to have a material effect on the Company’s financial statements. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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