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Other Comprehensive Income (Loss) (Schedule Of Components Of Other Comprehensive Income (Loss) And Related Tax Effects) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |  |
Defined benefit pension plan adjustments, Before-Tax Amount | $ 592 | $ 464 | $ 1,775 | $ 1,390
Defined benefit pension plan adjustments, Tax (Expense) Benefit | (168) | (133) | (504) | (398)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Net-of-Tax, Total | (424) | (331) | (1,271) | (992)
Foreign currency translation adjustment, Before-Tax Amount | 1,333 | (590) | (1,621) | 961
Foreign currency translation adjustment, Tax (Expense) Benefit | (231) | 140 | 365 | (253)
Foreign currency translation adjustment, Net-of-Tax Amount | 1,102 | (450) | (1,256) | 708
Unrealized gain (loss) in fair value of investments, Before-Tax Amount | (281) | 328 | 2,078 | 2,053
Unrealized gain in fair value of investments, Tax (Expense) Benefit | 56 | (72) | (455) | (438)
Unrealized gain in fair value of investments, Net-of-Tax Amount | (225) | 256 | 1,623 | 1,615
Total other comprehensive income, Before-Tax Amount | 1,644 | 202 | 2,232 | 4,404
Total other comprehensive income, Tax Benefit (Expense) | (343) | (65) | (594) | (1,089)
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX | 1,301 | 137 | 1,638 | 3,315
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Before-Tax Amount | 520 | (99) | (646) | 160
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Tax (Expense) Benefit | 0 | 0 | 0 | 0
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Net-of-Tax Amount | 520 | (99) | (646) | 160
Total other comprehensive income attributable to Tutor Perini Corporation, Before-Tax Amount | 1,124 | 301 | 2,878 | 4,244
Total other comprehensive income attributable to Tutor Perini Corporation, Tax (Expense) Benefit | (343) | (65) | (594) | (1,089)
Total other comprehensive income (loss) | $ 781 | $ 236 | $ 2,284 | $ 3,155

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