Subsequent Events	3 Months Ended
Mar. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	12. Subsequent Events On April 26, 2023, the Company terminated its agreement with CalPortland Company regarding the sale of the Company’s Tehachapi, California cement plant and related distribution terminals to CalPortland in light of the parties being unable to timely obtain the necessary approval by the U.S. Federal Trade Commission. The Company intends to explore the potential sale of Tehachapi to other buyers. On May 3, 2023, the Company divested its cement import operations in California. Since October 1, 2021, these cement businesses have been classified as assets held for sale on the Company’s consolidated balance sheet; the associated financial results have been reported as discontinued operations on the consolidated statement of earnings.

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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI https://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 https://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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