Amount in settlement fund account related to litigation settlement.

No definition available.

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- Definition

Proceeds from insurance recovery related to a loss contingency.

+ References

No definition available.

+ Details

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- Definition

Amount of payment to contingency settlement fund.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

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- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

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- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

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-Publisher FASB
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- Definition

Amount of cash outflow reducing loss contingency liability.

+ References

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
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-Publisher FASB
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-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248

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Note 18 - Contingencies - Legal Proceedings (Details Textual) - USD ($) $ in Thousands						3 Months Ended	6 Months Ended	12 Months Ended
	Apr. 14, 2022	Feb. 04, 2022	Feb. 03, 2022	Oct. 06, 2021	Apr. 29, 2021	Mar. 31, 2021	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Loss Contingency Accrual, Ending Balance							$ 129,000	$ 129,000	$ 66,000
Police Retirement System of St. Louis v. Granite Construction Incorporated, et al. [Member]
Loss Contingency, Proceeds From Insurance Recovery				$ 63,000			63,000	63,000
Gain (Loss) Related to Litigation Settlement						$ (66,000)
Litigation Settlement, Amount Awarded to Other Party					$ 129,000
Payment to Contingency Settlement Fund				129,000
Loss Contingency Accrual, Payments				66,000
Litigation Settlement, Settlement Fund Amount				$ 129,000
SEC Investigation [Member]
Loss Contingency Accrual, Ending Balance							$ 12,000	$ 0	$ 0
English v. Roberts et al. [Member]
Loss Contingency, Damages Sought, Value	$ 7,500
Steadfast Insurance Company (“Steadfast”), a subrogee of Clark/Hathaway Dinwiddie, a Joint Venture (“CHDJV”) v. Layne Christensen Company [Member] \| Potential Legal Action Not Yet Taken Against the Company [Member]
Loss Contingency, Estimate of Possible Loss		$ 100,000
Steadfast Insurance Company (“Steadfast”), a subrogee of Clark/Hathaway Dinwiddie, a Joint Venture (“CHDJV”) v. Layne Christensen Company [Member] \| Steadfast [Member]
Loss Contingency, Damages Sought, Value			$ 70,000
Steadfast Insurance Company (“Steadfast”), a subrogee of Clark/Hathaway Dinwiddie, a Joint Venture (“CHDJV”) v. Layne Christensen Company [Member] \| CHDJV [Member]
Loss Contingency, Damages Sought, Value		$ 30,000