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
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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
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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
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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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-Topic 460
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-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248

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- Details

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Balance Type:
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Note 18 - Contingencies - Legal Proceedings (Details Textual) - USD ($) $ in Millions					1 Months Ended	3 Months Ended
	Apr. 14, 2022	Feb. 04, 2022	Feb. 03, 2022	Apr. 29, 2021	Oct. 31, 2021	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Loss Contingency Accrual, Ending Balance						$ 129.0	$ 129.0	$ 66.0
Police Retirement System of St. Louis v. Granite Construction Incorporated, et al. [Member]
Loss Contingency, Proceeds From Insurance Recovery					$ 63.0	63.0
Gain (Loss) Related to Litigation Settlement						$ (66.0)
Litigation Settlement, Amount Awarded to Other Party				$ 129.0
Payment to Contingency Settlement Fund					129.0
Loss Contingency Accrual, Payments					66.0
Litigation Settlement, Settlement Fund Amount					$ 129.0
English v. Roberts et al. [Member] \| Subsequent Event [Member]
Loss Contingency, Damages Sought, Value	$ 7.5
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		$ 100.0
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			$ 70.0
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		$ 30.0