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Detail of Certain Accounts - Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 150,653	$ 238,258	$ 229,097	$ 212,473	$ 200,218	$ 184,620
Cash equivalents	66,200		140,000
Domestic Bank Accounts
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	110,203		205,781
Foreign Bank Accounts
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	40,450		23,316
Domestic Joint Ventures
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	20,461		21,828
Foreign Joint Ventures
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	3,146		3,461
Investments in Joint Ventures
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	23,607		25,289
Captive Insurance Company
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	47,896	$ 134,800	133,302	$ 132,000	$ 131,800	$ 85,000
Cash Not Held by Joint Ventures
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 79,150		$ 70,506

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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+ References

No definition available.

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- Definition

Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
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