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Note 10 - Construction Joint Ventures (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($)
Contract Value of Active Construction Joint Venture Projects | $ 3,400,000 |  | $ 3,400,000 |  |
Contract with Customer, Liability, Total | 195,267 | $ 189,430 | 195,267 | $ 189,430 | $ 171,321
Revenue from Contract with Customer, Including Assessed Tax | 1,062,129 | 1,065,189 | 2,696,214 | 2,616,887 |
Retained Earnings (Accumulated Deficit), Ending Balance | 430,074 | 422,846 | 430,074 | 422,846 | 424,835
Net Income (Loss) Attributable to Parent, Total | $ 35,043 | (91,162) | 23,309 | (153,127) |
Unconsolidated Construction Joint Venture Net Income (Loss) |  |  | $ 8,027 | (38,529) |
Unconsolidated Construction Corporate Joint Venture [Member] |  |  |  |  |
Number of Active Joint Venture Projects | 10 |  | 10 |  |
Contract Value of Active Construction Joint Venture Projects | $ 11,600,000 |  | $ 11,600,000 |  |
Contract with Customer, Liability, Total | 225,800 |  | 225,800 |  |
Affirmative Claim Recovery Estimate | 101,900 | 86,200 | 101,900 | 86,200 | 88,700
Back Charge Claims | 14,100 | 13,800 | 14,100 | 13,800 | 13,100
Retained Earnings (Accumulated Deficit), Ending Balance | 19,900 | 75,100 | 19,900 | 75,100 | $ 82,500
Net Income (Loss) Attributable to Parent, Total | (9,300) | (6,000) | (11,500) | (144,500) |
Unconsolidated Construction Joint Venture Net Income (Loss) | 1,000 | (8,000) | 8,000 | (38,500) |
Unconsolidated Construction Corporate Joint Venture [Member] | Minimum [Member] |  |  |  |  |
Contract Value of Active Construction Joint Venture Projects | 13,700 |  | 13,700 |  |
Contract with Customer, Liability, Total | $ 1,200 |  | $ 1,200 |  |
Equity Method Investment, Ownership Percentage | 20.00% |  | 20.00% |  |
Unconsolidated Construction Corporate Joint Venture [Member] | Maximum [Member] |  |  |  |  |
Contract Value of Active Construction Joint Venture Projects | $ 3,800,000 |  | $ 3,800,000 |  |
Contract with Customer, Liability, Total | $ 52,800 |  | $ 52,800 |  |
Equity Method Investment, Ownership Percentage | 50.00% |  | 50.00% |  |
Unconsolidated Construction Corporate Joint Venture [Member] | Performance Guarantee [Member] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 300,000 |  | $ 300,000 |  |
Guarantor Obligations, Current Carrying Value | 82,300 |  | 82,300 |  |
Co-venturer [Member] | Performance Guarantee [Member] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | 500,000 |  | 500,000 |  |
Consolidated Construction Corporate Joint Venture [Member] |  |  |  |  |
Contract Value of Active Construction Joint Venture Projects | $ 914,800 |  | $ 914,800 |  |
Consolidated Construction Corporate Joint Venture [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |  |
Number of Active Joint Venture Projects | 8 |  | 8 |  |
Contract Value of Active Construction Joint Venture Projects | $ 1,600,000 |  | $ 1,600,000 |  |
Contract with Customer, Liability, Total | 292,600 |  | 292,600 |  |
Revenue from Contract with Customer, Including Assessed Tax | 117,400 | 79,200 | 314,900 | 219,900 |
Net Cash Provided by (Used in) Continuing Operations, Total |  |  | 17,500 | 17,000 |
Consolidated Construction Corporate Joint Venture [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Minimum [Member] |  |  |  |  |
Contract Value of Active Construction Joint Venture Projects | 2,300 |  | 2,300 |  |
Contract with Customer, Liability, Total | 800 |  | $ 800 |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage |  |  | 50.00% |  |
Consolidated Construction Corporate Joint Venture [Member] | Variable Interest Entity, Primary Beneficiary [Member] | Maximum [Member] |  |  |  |  |
Contract Value of Active Construction Joint Venture Projects | 437,500 |  | $ 437,500 |  |
Contract with Customer, Liability, Total | $ 97,300 |  | $ 97,300 |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage |  |  | 70.00% |  |
Line Item Joint Venture [Member] |  |  |  |  |
Number of Active Joint Venture Projects | 3 |  | 3 |  |
Contract Value of Active Construction Joint Venture Projects | $ 221,900 |  | $ 221,900 |  |
Contract with Customer, Liability, Total | 84,600 |  | 84,600 |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 26,300 | $ 27,500 | 55,000 | $ 58,700 |
Unconsolidated Construction Joint Venture Net Income (Loss) |  |  | 337,000 |  |
Construction [Member] | Unconsolidated Construction Corporate Joint Venture [Member] |  |  |  |  |
Contract with Customer, Liability, Revenue Recognized |  |  | $ 800,000 |  |

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