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Other Comprehensive Income (Loss) (Schedule Of Changes In AOCI Balances By Component (After-Tax)) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period |  |  | $ 1,449,718 |
Balance at the beginning of the period, noncontrolling interests |  |  | (7,734) |
Other comprehensive income (loss) before reclassifications | $ (813) | $ (3,575) | 81 | $ (9,851)
Amounts reclassified from AOCI | 313 | 521 | 977 | 1,469
Total other comprehensive income (loss) | (500) | (3,054) | 1,058 | (8,382)
Other comprehensive income (loss) | (473) | (1,525) | 81 | (2,677)
Balance at the end of the period, noncontrolling interests | 2,454 |  | 2,454 |
Balance at the end of the period | 1,331,501 |  | 1,331,501 |
Defined Benefit Pension Plan |  |  |  |
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period | (32,040) | (36,951) | (32,637) | (37,866)
Other comprehensive income (loss) before reclassifications | 0 | 0 | 0 | 0
Amounts reclassified from AOCI | 299 | 458 | 896 | 1,373
Total other comprehensive income (loss) | 299 | 458 | 896 | 1,373
Balance at the end of the period | (31,741) | (36,493) | (31,741) | (36,493)
Foreign Currency Translation |  |  |  |
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period | (6,920) | (6,568) | (7,241) | (5,787)
Other comprehensive income (loss) before reclassifications | (484) | (1,238) | (163) | (2,019)
Amounts reclassified from AOCI | 0 | 0 | 0 | 0
Total other comprehensive income (loss) | (484) | (1,238) | (163) | (2,019)
Balance at the end of the period | (7,404) | (7,806) | (7,404) | (7,806)
Unrealized Gain (Loss) in Fair Value of Investments, Net |  |  |  |
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period | (6,519) | (5,444) | (7,159) | 18
Other comprehensive income (loss) before reclassifications | (329) | (2,337) | 244 | (7,832)
Amounts reclassified from AOCI | 14 | 63 | 81 | 96
Total other comprehensive income (loss) | (315) | (2,274) | 325 | (7,736)
Balance at the end of the period | (6,834) | (7,718) | (6,834) | (7,718)
Accumulated Other Comprehensive Income (Loss) |  |  |  |
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period | (45,479) | (48,963) | (47,037) | (43,635)
Balance at the end of the period | (45,979) | (52,017) | (45,979) | (52,017)
AOCI Attributable to Noncontrolling Interest |  |  |  |
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period, noncontrolling interests | (1,176) | (610) | (1,730) | 542
Balance at the end of the period, noncontrolling interests | (1,649) | (2,135) | (1,649) | (2,135)
Defined Benefit Pension Plan |  |  |  |
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period, noncontrolling interests | 0 | 0 | 0 | 0
Other comprehensive income (loss) | 0 | 0 | 0 | 0
Balance at the end of the period, noncontrolling interests | 0 | 0 | 0 | 0
Foreign Currency Translation |  |  |  |
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period, noncontrolling interests | (342) | 190 | (799) | 542
Other comprehensive income (loss) | (533) | (1,289) | (76) | (1,641)
Balance at the end of the period, noncontrolling interests | (875) | (1,099) | (875) | (1,099)
Unrealized Gain (Loss) in Fair Value of Investments, Net |  |  |  |
Attributable to Tutor Perini Corporation: |  |  |  |
Balance at the beginning of the period, noncontrolling interests | (834) | (800) | (931) | 0
Other comprehensive income (loss) | 60 | (236) | 157 | (1,036)
Balance at the end of the period, noncontrolling interests | $ (774) | $ (1,036) | $ (774) | $ (1,036)

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