Tutor Perini (TPC) 10-Q 4 May 23 2023 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2023	Apr. 27, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	1-6314
Entity Registrant Name	Tutor Perini Corporation
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	04-1717070
Entity Address, Address Line One	15901 OLDEN STREET
Entity Address, City or Town	SYLMAR
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91342-1093
City Area Code	818
Local Phone Number	362-8391
Title of 12(b) Security	Common Stock, $1.00 par value
Trading Symbol	TPC
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		51,644,903
Document Fiscal Period Focus	Q1
Entity Central Index Key	0000077543
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
REVENUE	$ 776,300	$ 952,154
COST OF OPERATIONS	(800,469)	(901,809)
GROSS PROFIT (LOSS)	(24,169)	50,345
General and administrative expenses	(57,776)	(60,252)
LOSS FROM CONSTRUCTION OPERATIONS	(81,945)	(9,907)
Other income, net	6,417	3,697
Interest expense	(21,513)	(16,492)
LOSS BEFORE INCOME TAXES	(97,041)	(22,702)
Income tax benefit	48,112	3,889
NET LOSS	(48,929)	(18,813)
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	267	2,821
NET LOSS ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (49,196)	$ (21,634)
BASIC LOSS PER COMMON SHARE (in dollars per share)	$ (0.95)	$ (0.42)
DILUTED LOSS PER COMMON SHARE (in dollars per share)	$ (0.95)	$ (0.42)
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	51,551	51,107
DILUTED (in shares)	51,551	51,107

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
NET LOSS	$ (48,929)	$ (18,813)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Defined benefit pension plan adjustments	301	458
Foreign currency translation adjustments	250	257
Unrealized gain (loss) in fair value of investments	1,329	(4,204)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	1,880	(3,489)
COMPREHENSIVE LOSS	(47,049)	(22,302)
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	420	2,442
COMPREHENSIVE LOSS ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (47,469)	$ (24,744)

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents ($166,416 and $168,408 related to variable interest entities (“VIEs”))	$ 282,695	$ 259,351
Restricted cash	19,946	14,480
Restricted investments	88,240	91,556
Accounts receivable ($69,197 and $54,040 related to VIEs)	1,140,592	1,171,085
Retention receivable ($157,729 and $187,615 related to VIEs)	563,967	585,556
Costs and estimated earnings in excess of billings ($83,546 and $83,911 related to VIEs)	1,299,786	1,377,528
Other current assets ($29,553 and $33,340 related to VIEs)	132,321	179,215
Total current assets	3,527,547	3,678,771
PROPERTY AND EQUIPMENT (“P&E”), net of accumulated depreciation of $510,604 and $505,512 (net P&E of $28,773 and $22,133 related to VIEs)	441,606	435,088
GOODWILL	205,143	205,143
INTANGIBLE ASSETS, NET	69,983	70,542
OTHER ASSETS	232,499	153,256
TOTAL ASSETS	4,476,778	4,542,800
CURRENT LIABILITIES:
Current maturities of long-term debt	66,228	70,285
Accounts payable ($33,540 and $36,484 related to VIEs)	471,938	495,345
Retention payable ($44,481 and $44,859 related to VIEs)	245,972	246,562
Billings in excess of costs and estimated earnings ($471,199 and $480,839 related to VIEs)	978,505	975,812
Accrued expenses and other current liabilities ($3,147 and $5,082 related to VIEs)	171,604	179,523
Total current liabilities	1,934,247	1,967,527
LONG-TERM DEBT, less current maturities, net of unamortized discount and debt issuance costs totaling $13,136 and $13,980	914,454	888,154
OTHER LONG-TERM LIABILITIES	238,370	245,135
TOTAL LIABILITIES	3,087,071	3,100,816
COMMITMENTS AND CONTINGENCIES (NOTE 10)
Stockholders' equity:
Preferred stock - authorized 1,000,000 shares ($1 par value), none issued	0	0
Common stock - authorized 112,500,000 shares ($1 par value), issued and outstanding 51,644,903 and 51,521,336 shares	51,645	51,521
Additional paid-in capital	1,142,081	1,140,933
Retained earnings	255,105	304,301
Accumulated other comprehensive loss	(45,310)	(47,037)
Total stockholders' equity	1,403,521	1,449,718
Noncontrolling interests	(13,814)	(7,734)
TOTAL EQUITY	1,389,707	1,441,984
TOTAL LIABILITIES AND EQUITY	$ 4,476,778	$ 4,542,800

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Cash and cash equivalents	$ 282,695	$ 259,351
Accounts receivable	1,140,592	1,171,085
Retention receivable	563,967	585,556
Costs and estimated earnings in excess of billings	1,299,786	1,377,528
Other current assets	132,321	179,215
Accumulated depreciation	510,604	505,512
Property and equipment, net	441,606	435,088
Accounts payable	471,938	495,345
Retention payable	245,972	246,562
Billings in excess of costs and estimated earnings	978,505	975,812
Accrued expenses and other current liabilities	171,604	179,523
Unamortized discount and debt issuance costs, non-current	$ 13,136	$ 13,980
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares issued (in shares)	0	0
Common stock, shares authorized (in shares)	112,500,000	112,500,000
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares issued (in shares)	51,644,903	51,521,336
Common stock, shares outstanding (in shares)	51,644,903	51,521,336
VIEs
Cash and cash equivalents	$ 166,416	$ 168,408
Accounts receivable	69,197	54,040
Retention receivable	157,729	187,615
Costs and estimated earnings in excess of billings	83,546	83,911
Other current assets	29,553	33,340
Property and equipment, net	28,773	22,133
Accounts payable	33,540	36,484
Retention payable	44,481	44,859
Billings in excess of costs and estimated earnings	471,199	480,839
Accrued expenses and other current liabilities	$ 3,147	$ 5,082

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash Flows from Operating Activities:
Net loss	$ (48,929)	$ (18,813)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	9,849	14,733
Amortization of intangible assets	559	5,505
Share-based compensation expense	3,071	3,417
Change in debt discounts and deferred debt issuance costs	1,004	901
Deferred income taxes	(86,265)	(52)
Gain on sale of property and equipment	(4,975)	(132)
Changes in other components of working capital	148,182	112,448
Other long-term liabilities	(2,256)	2,489
Other, net	1,088	251
NET CASH PROVIDED BY OPERATING ACTIVITIES	21,328	120,747
Cash Flows from Investing Activities:
Acquisition of property and equipment	(17,796)	(12,028)
Proceeds from sale of property and equipment	6,540	1,434
Investments in securities	(386)	(4,657)
Proceeds from maturities and sales of investments in securities	4,755	383
NET CASH USED IN INVESTING ACTIVITIES	(6,887)	(14,868)
Cash Flows from Financing Activities:
Proceeds from debt	259,500	284,552
Repayment of debt	(238,101)	(275,910)
Cash payments related to share-based compensation	(123)	(1,009)
Distributions paid to noncontrolling interests	(8,500)	(7,500)
Contributions from noncontrolling interests	2,000	3,961
Debt issuance, extinguishment and modification costs	(407)	0
NET CASH PROVIDED BY FINANCING ACTIVITIES	14,369	4,094
Net increase in cash, cash equivalents and restricted cash	28,810	109,973
Cash, cash equivalents and restricted cash at beginning of period	273,831	211,396
Cash, cash equivalents and restricted cash at end of period	$ 302,641	$ 321,369

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The Condensed Consolidated Financial Statements do not include footnotes and certain financial information normally presented annually under generally accepted accounting principles in the United States (“GAAP”). Therefore, they should be read in conjunction with the audited consolidated financial statements and the related notes included in Tutor Perini Corporation’s (the “Company”) Annual Report on Form 10-K for the year ended December 31, 2022. The results of operations for the three months ended March 31, 2023 may not be indicative of the results that will be achieved for the full year ending December 31, 2023. In the opinion of management, the accompanying unaudited Condensed Consolidated Financial Statements reflect all adjustments, including those of a normal recurring nature, necessary to present fairly the Company’s consolidated financial position as of March 31, 2023 and its consolidated statements of operations and cash flows for the interim periods presented. Intercompany balances and transactions have been eliminated. Certain amounts in the notes to the condensed consolidated financial statements of prior years have been reclassified to conform to the current year presentation.

Revenue

Revenue	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Disaggregation of Revenue The following tables disaggregate revenue by end market, customer type and contract type, which the Company believes best depict how the nature, amount, timing and uncertainty of its revenue and cash flows are affected by economic factors for the three months ended March 31, 2023 and 2022. Three Months Ended (in thousands) 2023 2022 Civil segment revenue by end market: Mass transit (includes certain transportation and tunneling projects) $ 188,460 $ 257,138 Military defense facilities 85,567 49,794 Bridges 30,645 41,247 Commercial and industrial sites 22,504 11,910 Other 22,694 30,706 Total Civil segment revenue $ 349,870 $ 390,795 Three Months Ended (in thousands) 2023 2022 Building segment revenue by end market: Municipal and government $ 89,620 $ 75,955 Health care facilities 50,417 35,560 Education facilities 48,077 29,860 Commercial and industrial facilities 38,271 39,086 Mass transit (includes transportation projects) 33,320 60,201 Hospitality and gaming 19,606 76,918 Sports and entertainment 13,466 4,772 Other (a) (63,124) 8,296 Total Building segment revenue $ 229,653 $ 330,648 Three Months Ended (in thousands) 2023 2022 Specialty Contractors segment revenue by end market: Commercial and industrial facilities $ 54,227 $ 29,857 Mass transit (includes certain transportation and tunneling projects) 47,545 119,027 Multi-unit residential 32,796 24,938 Water 28,334 21,447 Federal government 12,619 6,748 Health care facilities 9,531 8,574 Education facilities 8,253 12,276 Other (a) 3,472 7,844 Total Specialty Contractors segment revenue $ 196,777 $ 230,711 Three Months Ended Three Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by customer type: State and local agencies $ 213,427 $ 136,601 $ 85,682 $ 435,710 $ 313,842 $ 123,690 $ 92,231 $ 529,763 Federal agencies 95,984 41,735 1,893 139,612 50,694 46,098 11,334 108,126 Private owners (a) 40,459 51,317 109,202 200,978 26,259 160,860 127,146 314,265 Total revenue $ 349,870 $ 229,653 $ 196,777 $ 776,300 $ 390,795 $ 330,648 $ 230,711 $ 952,154 Three Months Ended Three Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by contract type: Fixed price $ 311,373 $ 96,116 $ 166,155 $ 573,644 $ 336,993 $ 102,518 $ 199,063 $ 638,574 Guaranteed maximum price (a) 62 69,778 1,756 71,596 293 171,509 5,333 177,135 Unit price 33,012 — 24,064 57,076 50,510 33 14,822 65,365 Cost plus fee and other 5,423 63,759 4,802 73,984 2,999 56,588 11,493 71,080 Total revenue $ 349,870 $ 229,653 $ 196,777 $ 776,300 $ 390,795 $ 330,648 $ 230,711 $ 952,154 ____________________________________________________________________________________________________ (a) Includes the negative impact of a non-cash charge in the first quarter of 2023 resulting from an adverse legal ruling. Refer to Note 17, Business Segments , for additional details. Changes in Contract Estimates that Impact Revenue Changes to the total estimated contract revenue or cost for a given project, either due to unexpected events or revisions to management’s initial estimates, are recognized in the period in which they are determined. Revenue was negatively impacted during the three months ended March 31, 2023 related to performance obligations satisfied (or partially satisfied) in prior periods by $108.0 million. Refer to Note 17, Business Segments , for additional details on significant adjustments . Revenue was negatively impacted during the three months ended March 31, 2022 related to performance obligations satisfied (or partially satisfied) in prior periods by $48.5 million. Remaining Performance Obligations Remaining performance obligations represent the transaction price of firm orders for which work has not been performed and exclude unexercised contract options. As of March 31, 2023, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $4.4 billion, $2.2 billion and $1.2 billion for three one

Contract Assets and Liabilities

Contract Assets and Liabilities	3 Months Ended
	Mar. 31, 2023
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Contract Assets and Liabilities	Contract Assets and Liabilities The Company classifies contract assets and liabilities that may be settled beyond one year from the balance sheet date as current, consistent with the length of time of the Company’s project operating cycle. Contract assets include amounts due under retention provisions, costs and estimated earnings in excess of billings and capitalized contract costs. The amounts as included on the Condensed Consolidated Balance Sheets consisted of the following: (in thousands) As of March 31, As of December 31, Retention receivable $ 563,967 $ 585,556 Costs and estimated earnings in excess of billings: Claims 599,460 677,367 Unapproved change orders 619,888 601,681 Other unbilled costs and profits 80,438 98,480 Total costs and estimated earnings in excess of billings 1,299,786 1,377,528 Capitalized contract costs 42,606 49,441 Total contract assets $ 1,906,359 $ 2,012,525 Retention receivable represents amounts invoiced to customers where payments have been partially withheld pending the completion of certain milestones, satisfaction of other contractual conditions or the completion of the project. Retention agreements vary from project to project, and balances could be outstanding for several months or years depending on a number of circumstances such as contract-specific terms, project performance and other variables that may arise as the Company makes progress toward completion. As of March 31, 2023, the amount of retention receivable estimated by management to be collected beyond one year is approximately 55% of the balance. Costs and estimated earnings in excess of billings represent the excess of contract costs and profits (or contract revenue) over the amount of contract billings to date and are classified as a current asset. Costs and estimated earnings in excess of billings result when either: (1) the appropriate contract revenue amount has been recognized over time in accordance with Accounting Standards Codification (“ASC”) 606, Revenue from Contracts with Customers (“ASC 606”), but a portion of the revenue recorded cannot be billed currently due to the billing terms defined in the contract, or (2) costs are incurred related to certain claims and unapproved change orders. Claims occur when there is a dispute regarding both a change in the scope of work and the price associated with that change. Unapproved change orders occur when a change in the scope of work results in additional work being performed before the parties have agreed on the corresponding change in the contract price. The Company routinely estimates recovery related to claims and unapproved change orders as a form of variable consideration at the most likely amount it expects to receive and to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is resolved. Claims and unapproved change orders are billable upon the agreement and resolution between the contractual parties and after the execution of contractual amendments. Increases in claims and unapproved change orders typically result from costs being incurred against existing or new positions; decreases normally result from resolutions and subsequent billings. As discussed in Note 10, the resolution of these claims and unapproved change orders may require litigation or other forms of dispute resolution proceedings. Other unbilled costs and profits are billable in accordance with the billing terms of each of the existing contractual arrangements and, as such, the timing of contract billing cycles can cause fluctuations in the balance of unbilled costs and profits. Ultimate resolution of other unbilled costs and profits typically involves incremental progress toward contractual requirements or milestones. The amount of costs and estimated earnings in excess of billings as of March 31, 2023 estimated by management to be collected beyond one year is approximately $642.6 million. Capitalized contract costs are included in other current assets and primarily represent costs to fulfill a contract that (1) directly relate to an existing or anticipated contract, (2) generate or enhance resources that will be used in satisfying performance obligations in the future and (3) are expected to be recovered through the contract. Capitalized contract costs are generally expensed to the associated contract over the period of anticipated use on the project. During the three months ended March 31, 2023 and 2022, $10.8 million and $12.6 million, respectively, of previously capitalized contract costs were amortized and recognized as expense on the related contracts. Contract liabilities include amounts owed under retention provisions and billings in excess of costs and estimated earnings. The amount as reported on the Condensed Consolidated Balance Sheets consisted of the following: (in thousands) As of March 31, As of December 31, Retention payable $ 245,972 $ 246,562 Billings in excess of costs and estimated earnings 978,505 975,812 Total contract liabilities $ 1,224,477 $ 1,222,374 Retention payable represents amounts invoiced to the Company by subcontractors where payments have been partially withheld pending the completion of certain milestones, other contractual conditions or upon the completion of the project. Generally, retention payable is not remitted to subcontractors until the associated retention receivable from customers is collected. As o f March 31, 2023, the amount of retention payable estimated by management to be remitted beyond one year is approximately 39% of the balance. Billings in excess of costs and estimated earnings represent the excess of contract billings to date over the amount of contract costs and profits (or contract revenue) recognized to date. The balance may fluctuate depending on the timing of contract billings and the recognition of contract revenue. Revenue recognized during the three months ended March 31, 2023 and 2022 and included in the opening billings in excess of costs and estimated earnings balances for each period totaled $365.1 million and $317.8 million, respectively.

Cash, Cash Equivalents and Rest

Cash, Cash Equivalents and Restricted Cash	3 Months Ended
	Mar. 31, 2023
Cash and Cash Equivalents [Abstract]
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets to the amounts shown in the Condensed Consolidated Statements of Cash Flows: (in thousands) As of March 31, As of December 31, Cash and cash equivalents available for general corporate purposes $ 63,928 $ 47,711 Joint venture cash and cash equivalents 218,767 211,640 Cash and cash equivalents 282,695 259,351 Restricted cash 19,946 14,480 Total cash, cash equivalents and restricted cash $ 302,641 $ 273,831 Cash equivalents include short-term, highly liquid investments with maturities of three months or less when acquired. Cash and cash equivalents consist of amounts available for the Company’s general purposes, the Company’s proportionate share of cash held by the Company’s unconsolidated joint ventures and 100% of amounts held by the Company’s consolidated joint ventures. In both cases, cash held by joint ventures is available only for joint venture-related uses, including future distributions to joint venture partners. Restricted cash includes amounts primarily held as collateral to secure insurance-related contingent obligations, such as insurance claim deductibles, in lieu of letters of credit.

Earnings Per Common Share

Earnings Per Common Share	3 Months Ended
	Mar. 31, 2023
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common ShareBasic earnings per common share (“EPS”) and diluted EPS are calculated by dividing net income (loss) attributable to Tutor Perini Corporation by the following: for basic EPS, the weighted-average number of common shares outstanding during the period; and for diluted EPS, the sum of the weighted-average number of both outstanding common shares and potentially dilutive securities, which for the Company can include restricted stock units (“RSUs”) and unexercised stock options. The Company calculates the effect of the potentially dilutive RSUs and stock options using the treasury stock method. Three Months Ended March 31, (in thousands, except per common share data) 2023 2022 Net loss attributable to Tutor Perini Corporation $ (49,196) $ (21,634) Weighted-average common shares outstanding, basic 51,551 51,107 Effect of dilutive RSUs and stock options — — Weighted-average common shares outstanding, diluted 51,551 51,107 Net loss attributable to Tutor Perini Corporation per common share: Basic $ (0.95) $ (0.42) Diluted $ (0.95) $ (0.42) Anti-dilutive securities not included above 2,857 3,431 For both the three months ended March 31, 2023 and 2022, all outstanding RSUs and stock options were excluded from the calculation of weighted-average diluted shares outstanding, as the shares have an anti-dilutive effect due to the net loss for both periods.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recognized an income tax benefit for the three months ended March 31, 2023 of $48.1 million resulting in an effective income tax rate of 49.6%. The effective income tax rate was higher than the 21% federal statutory rate primarily due to the pre-tax loss for the period and projected for the year. In periods reporting pre-tax losses, a tax benefit increases the effective income tax rate because it increases the tax benefit generated from the pre-tax loss. The tax benefits that caused a higher effective tax rate were primarily the earnings attributable to noncontrolling interests (for which income taxes are not the responsibility of the Company) and state income taxes (net of the federal tax benefit), partially offset by non-deductible expenses. For the three months ended March 31, 2022, the Company recognized an income tax benefit of $3.9 million with an effective income tax rate of 17.1%. The Company incurred a pre-tax loss for the quarter, but projected a pre-tax profit for the year and, as a result, tax benefits reduced the effective tax rate. The effective income tax rate was lower than the 21% federal statutory rate primarily due to earnings attributable to noncontrolling interests, for which income taxes are not the responsibility of the Company, partially offset by state income taxes (net of the federal tax benefit). The Company had deferred tax assets of $97.4 million and $15.9 million at March 31, 2023

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill The following table presents the changes in the carrying amount of goodwill since its inception through March 31, 2023: (in thousands) Civil Building Specialty Total Gross goodwill as of December 31, 2022 $ 492,074 $ 424,724 $ 156,193 $ 1,072,991 Accumulated impairment as of December 31, 2022 (286,931) (424,724) (156,193) (867,848) Goodwill as of December 31, 2022 205,143 — — 205,143 Current year activity — — — — Goodwill as of March 31, 2023 $ 205,143 $ — $ — $ 205,143 The Company performed its annual impairment test in the fourth quarter of 2022 and concluded goodwill was not impaired. In addition, the Company determined that no triggering events occurred and no circumstances changed since the date of our annual impairment test that would more likely than not reduce the fair value of the Civil reporting unit below its carrying amount. The Company will continue to monitor events and circumstances for changes that indicate the Civil reporting unit goodwill would need to be reevaluated for impairment during future interim periods prior to the annual impairment test. These future events and circumstances include, but are not limited to, changes in the overall financial performance of the Civil reporting unit, as well as other quantitative and qualitative factors which could indicate potential triggering events for possible impairment. Intangible Assets Intangible assets consist of the following: As of March 31, 2023 Weighted-Average Amortization Period (in thousands) Cost Accumulated Accumulated Impairment Charge Carrying Value Trade names (non-amortizable) $ 117,600 $ — $ (67,190) $ 50,410 Indefinite Trade names (amortizable) 69,250 (26,445) (23,232) 19,573 20 years Contractor license 6,000 — (6,000) — N/A Customer relationships 39,800 (23,155) (16,645) — N/A Construction contract backlog 149,290 (149,290) — — N/A Total $ 381,940 $ (198,890) $ (113,067) $ 69,983 As of December 31, 2022 Weighted-Average Amortization Period (in thousands) Cost Accumulated Accumulated Impairment Charge Carrying Value Trade names (non-amortizable) $ 117,600 $ — $ (67,190) $ 50,410 Indefinite Trade names (amortizable) 69,250 (25,886) (23,232) 20,132 20 years Contractor license 6,000 — (6,000) — N/A Customer relationships 39,800 (23,155) (16,645) — N/A Construction contract backlog 149,290 (149,290) — — N/A Total $ 381,940 $ (198,331) $ (113,067) $ 70,542 Amortization expense related to amortizable intangible assets for the three months ended March 31, 2023 and 2022 was $0.6 million and $5.5 million, respectively. As of March 31, 2023, future amortization expense related to amortizable intangible assets will be approximately $1.7 million for the remainder of 2023, $2.2 million per year for the years 2024 through 2028 and $6.9 million thereafter. The Company performed its annual impairment test for non-amortizable trade names during the fourth quarter of 2022. Based on this assessment, the Company concluded that its non-amortizable trade names were not impaired. In addition, the Company determined that no triggering events occurred and no circumstances changed since the date of our annual impairment test that would indicate impairment of its non-amortizable trade names. Other amortizable intangible assets are reviewed for impairment whenever circumstances indicate that future cash flows generated by the assets might be less than the assets’ net carrying value. The Company had no impairment of intangible assets during the three months ended March 31, 2023 or 2022.

Financial Commitments

Financial Commitments	3 Months Ended
	Mar. 31, 2023
Debt Disclosure [Abstract]
Financial Commitments	Financial Commitments Long-Term Debt Long-term debt as reported on the Condensed Consolidated Balance Sheets consisted of the following: (in thousands) As of March 31, As of December 31, 2017 Senior Notes $ 497,562 $ 497,289 Term Loan B 403,677 404,169 Revolver 30,000 — Equipment financing and mortgages 45,286 48,681 Other indebtedness 4,157 8,300 Total debt 980,682 958,439 Less: Current maturities 66,228 70,285 Long-term debt, net $ 914,454 $ 888,154 The following table reconciles the outstanding debt balances to the reported debt balances as of March 31, 2023 and December 31, 2022: As of March 31, 2023 As of December 31, 2022 (in thousands) Outstanding Debt Unamortized Discounts and Issuance Costs Debt, Outstanding Debt Unamortized Discounts and Issuance Costs Debt, 2017 Senior Notes $ 500,000 $ (2,438) $ 497,562 $ 500,000 $ (2,711) $ 497,289 Term Loan B 414,375 (10,698) 403,677 415,438 (11,269) 404,169 The unamortized issuance costs related to the Revolver were $1.9 million and $1.6 million as of March 31, 2023 and December 31, 2022, respectively, and are included in other assets on the Condensed Consolidated Balance Sheets. 2020 Credit Agreement On August 18, 2020, the Company entered into a credit agreement (the “2020 Credit Agreement”) with BMO Harris Bank N.A., as Administrative Agent, Swing Line Lender and L/C Issuer and other lenders. The 2020 Credit Agreement provides for a $425.0 million term loan B facility (the “Term Loan B”) and a $175.0 million revolving credit facility (the “Revolver”), with sublimits for the issuance of letters of credit and swing line loans up to the aggregate amounts of $75.0 million and $10.0 million, respectively. The Term Loan B will mature on August 18, 2027 and the Revolver will mature on August 18, 2025, in each case, unless any of the 2017 Senior Notes are outstanding on January 30, 2025 (which is 91 days prior to the maturity of the 2017 Senior Notes), in which case, both the Term Loan B and the Revolver will mature on January 30, 2025 (subject to certain further exceptions). The 2020 Credit Agreement permits the Company to repay any or all borrowings outstanding under the 2020 Credit Agreement at any time prior to maturity without penalty. The 2020 Credit Agreement requires the Company to make regularly scheduled payments of principal on the Term Loan B in quarterly installments equal to 0.25% of the initial principal amount of the Term Loan B. The 2020 Credit Agreement also requires the Company to make prepayments on the Term Loan B in connection with certain asset sales, receipts of insurance proceeds, incurrences of certain indebtedness and annual excess cash flow (in each case, subject to certain customary exceptions). At March 31, 2023 and December 31, 2022, included in current maturities of long-term debt in the accompanying Condensed Consolidated Balance Sheets is a $44.0 million prepayment of principal on the Term Loan B, which was paid in April 2023, relating to the mandatory prepayment provision of the 2020 Credit Agreement in respect of annual excess cash flow. Subject to certain exceptions, at any time prior to maturity, the 2020 Credit Agreement provides the Company with the right to increase the commitments under the Revolver and/or to establish one or more term loan facilities in an aggregate amount up to (i) the greater of $173.5 million and 50% LTM EBITDA (as defined in the 2020 Credit Agreement) plus (ii) additional amounts if (A) in the case of pari passu first lien secured indebtedness, the First Lien Net Leverage Ratio (as defined in the 2020 Credit Agreement) does not exceed 1.35:1.00, (B) in the case of junior lien secured indebtedness, the Total Net Leverage Ratio (as defined in the 2020 Credit Agreement) does not exceed 3.50:1.00 and (C) in the case of unsecured indebtedness, (x) the Total Net Leverage Ratio does not exceed 3.50:1.00 or (y) the Fixed Charge Coverage Ratio (as defined in the 2020 Credit Agreement) is no less than 2.00:1.00. Borrowings under the 2020 Credit Agreement bear interest, at the Company’s option, at a rate equal to (i) (A) in the case of the Term Loan B, following the amendment to the 2020 Credit Agreement on May 2, 2023 (as discussed below), (x) the Adjusted Term Secured Overnight Financing Rate (“Adjusted Term SOFR”) (calculated with a 11.448 basis point, 26.161 basis point and 42.826 basis point credit spread adjustment for a 1, 3 and 6 month interest period, respectively) or (y) a base rate (determined by reference to the highest of (1) the administrative agent’s prime lending rate, (2) the federal funds effective rate plus 50 basis points and (3) the Adjusted Term SOFR rate for a one-month interest period plus 100 basis points) and (B) in case of the Revolver, following the amendment to the 2020 Credit Agreement on October 31, 2022 (as discussed below), (x) the Adjusted Term SOFR rate (calculated with a 10 basis point credit spread adjustment for all interest periods) or (y) a base rate (determined by reference to the highest of (1) the administrative agent’s prime lending rate, (2) the federal funds effective rate plus 50 basis points and (3) the Adjusted Term SOFR rate for a one-month interest period plus 100 basis points) plus, in each case, (ii) an applicable margin. The margin applicable to the Term Loan B is between 4.50% and 4.75% for Adjusted Term SOFR and between 3.50% and 3.75% for base rate, and, in each case, is based on the Total Net Leverage Ratio. The margin applicable to the Revolver is between 4.25% and 4.75% for Adjusted Term SOFR and 3.25% and 3.75% for base rate, and, in each case, is based on the First Lien Net Leverage Ratio. Effective following the amendment to the 2020 Credit Agreement on October 31, 2022, the Company’s original London Interbank Offered Rate (“LIBOR”) option in respect of the Revolver was transitioned to Adjusted Term SOFR. Effective May 2, 2023, the 2020 Credit Agreement was further amended to transition the Company’s original LIBOR option in respect of the Term Loan B to Adjusted Term SOFR. In addition to paying interest on outstanding principal under the 2020 Credit Agreement, the Company will pay a commitment fee to the lenders under the Revolver in respect of the unutilized commitments thereunder. The Company will pay customary letter of credit fees. If a payment or bankruptcy event of default occurs and is continuing, the otherwise applicable margin on overdue amounts will be increased by 2% per annum. The 2020 Credit Agreement includes customary provisions for the replacement of Adjusted Term SOFR with an alternative benchmark rate upon Adjusted Term SOFR being discontinued. The weighted-average annual interest rate on borrowings under the Revolver was 11.58% during the three months ended March 31, 2023. The 2020 Credit Agreement initially required, solely with respect to the Revolver, the Company and its restricted subsidiaries to maintain a maximum First Lien Net Leverage Ratio of 2.75:1.00, stepping down to 2.25:1.00 beginning the fiscal quarter ending March 31, 2022. On October 31, 2022, the 2020 Credit Agreement was amended to increase the maximum First Lien Net Leverage Ratio covenant level to 2.75:1.00 (from 2.25:1.00), effective the fiscal quarter ending September 30, 2022, and subsequently stepping back down to 2.25:1.00 beginning the fiscal quarter ending June 30, 2023. On March 10, 2023, the 2020 Credit Agreement was further amended to set the maximum First Lien Net Leverage Ratio covenant level to 3.50:1.00, effective the fiscal quarter ended December 31, 2022 and increasing to 3.75:1.00 for the fiscal quarter ending March 31, 2023 and subsequently stepping down to 3.00:1.00 for the fiscal quarter ending June 30, 2023, 2.50:1.00 for the fiscal quarter ending September 30, 2023 and 2.25:1.00 for the fiscal quarter ending December 31, 2023 and each fiscal quarter thereafter. The 2020 Credit Agreement also includes certain customary representations and warranties, affirmative covenants and events of default. Subject to certain exceptions, substantially all of the Company’s existing and future material wholly-owned subsidiaries unconditionally guarantee the obligations of the Company under the 2020 Credit Agreement; additionally, subject to certain exceptions, the obligations are secured by a lien on substantially all of the assets of the Company and its subsidiaries guaranteeing these obligations. As of March 31, 2023, there was $145 million available under the Revolver. The Company had not utilized the Revolver for letters of credit. The Company was in compliance with the financial covenant under the 2020 Credit Agreement for the period ended March 31, 2023. 2017 Senior Notes On April 20, 2017, the Company issued $500 million in aggregate principal amount of 6.875% Senior Notes due May 1, 2025 (the “2017 Senior Notes”) in a private placement offering. Interest on the 2017 Senior Notes is payable in arrears semi-annually in May and November of each year, beginning in November 2017. The Company may redeem the 2017 Senior Notes at specified redemption prices described in the indenture. Upon a change of control, holders of the 2017 Senior Notes may require the Company to repurchase all or part of the 2017 Senior Notes at 101% of the principal amount thereof, plus accrued and unpaid interest to the redemption date. The 2017 Senior Notes are senior unsecured obligations of the Company and are guaranteed by substantially all of the Company’s existing and future subsidiaries that also guarantee obligations under the Company’s 2020 Credit Agreement, as defined above. In addition, the indenture for the 2017 Senior Notes provides for customary covenants, including events of default and restrictions on the payment of dividends and share repurchases. Interest Expense Interest expense as reported in the Condensed Consolidated Statements of Operations consisted of the following: Three Months Ended (in thousands) 2023 2022 Cash interest expense: Interest on 2017 Senior Notes $ 8,594 $ 8,594 Interest on Term Loan B 9,749 6,033 Interest on Revolver 1,745 503 Other interest 421 461 Total cash interest expense 20,509 15,591 Non-cash interest expense: (a) Amortization of discount and debt issuance costs on Term Loan B 571 505 Amortization of debt issuance costs on Revolver 160 142 Amortization of debt issuance costs on 2017 Senior Notes 273 254 Total non-cash interest expense 1,004 901 Total interest expense $ 21,513 $ 16,492 ____________________________________________________________________________________________________ (a) The combination of cash and non-cash interest expense produces effective interest rates that are higher than contractual rates. Accordingly, the effective interest rates for the 2017 Senior Notes and Term Loan B were 7.13% and 10.44% , respectively, for the three months ended March 31, 2023.

Leases

Leases	3 Months Ended
	Mar. 31, 2023
Leases [Abstract]
Leases	Leases The Company leases certain office space, construction and office equipment, vehicles and temporary housing generally under non-cancelable operating leases. Leases with an initial term of one year or less are not recorded on the balance sheet, and the Company generally recognizes lease expense for these leases on a straight-line basis over the lease term. As of March 31, 2023, the Company’s operating leases have remaining lease terms ranging from less than one year to 15 years, some of which include options to renew the leases. The exercise of lease renewal options is generally at the Company’s sole discretion. The Company’s leases do not contain any material residual value guarantees or material restrictive covenants. The following table presents components of lease expense for the three months ended March 31, 2023 and 2022: Three Months Ended (in thousands) 2023 2022 Operating lease expense $ 3,474 $ 4,157 Short-term lease expense (a) 13,919 14,444 17,393 18,601 Less: Sublease income 194 190 Total lease expense $ 17,199 $ 18,411 ____________________________________________________________________________________________________ (a) Short-term lease expense includes all leases with lease terms of up to one year. Short-term leases include, among other things, construction equipment rented on an as-needed basis as well as temporary housing. The following table presents supplemental balance sheet information related to operating leases: (dollars in thousands) Balance Sheet Line Item As of March 31, As of December 31, Assets Right-of-use assets Other assets $ 49,147 $ 50,825 Total lease assets $ 49,147 $ 50,825 Liabilities Current lease liabilities Accrued expenses and other current liabilities $ 6,290 $ 6,709 Long-term lease liabilities Other long-term liabilities 48,006 49,176 Total lease liabilities $ 54,296 $ 55,885 Weighted-average remaining lease term 11.0 years 11.0 years Weighted-average discount rate 11.81 % 11.77 % The following table presents supplemental cash flow information and non-cash activity related to operating leases: Three Months Ended (in thousands) 2023 2022 Operating cash flow information: Cash paid for amounts included in the measurement of lease liabilities $ (3,446) $ (3,927) Non-cash activity: Right-of-use assets obtained in exchange for lease liabilities $ 318 $ 6,757 The following table presents maturities of operating lease liabilities on an undiscounted basis as of March 31, 2023: Year (in thousands) Operating Leases 2023 (excluding the three months ended March 31, 2023) $ 9,198 2024 10,028 2025 8,910 2026 7,478 2027 6,770 Thereafter 58,094 Total lease payments 100,478 Less: Imputed interest 46,182 Total $ 54,296

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company and certain of its subsidiaries are involved in litigation and other legal proceedings and forms of dispute resolution in the ordinary course of business, including but not limited to disputes over contract payment and/or performance-related issues (such as disagreements regarding delay or a change in the scope of work of a project and/or the price associated with that change) and other matters incidental to the Company’s business. In accordance with ASC 606, the Company makes assessments of these types of matters on a routine basis and, to the extent permitted by ASC 606, estimates and records recovery related to these matters as a form of variable consideration at the most likely amount the Company expects to receive, as discussed further in Note 3 . In addition, the Company is contingently liable for litigation, performance guarantees and other commitments arising in the ordinary course of business, which are accounted for in accordance with ASC 450, Contingencies . Management reviews these matters regularly and updates or revises its estimates as warranted by subsequent information and developments. These assessments require judgments concerning matters that are inherently uncertain, such as litigation developments and outcomes, the anticipated outcome of negotiations and the estimated cost of resolving disputes. Consequently, these assessments are estimates, and actual amounts may vary from such estimates. In addition, because such matters are typically resolved over long periods of time, the Company’s assets and liabilities may change over time should the circumstances dictate. The description of the legal proceedings listed below include management’s assessment of those proceedings. Management believes that, based on current information and discussions with the Company’s legal counsel, the ultimate resolution of other matters is not expected to have a material effect on the Company’s consolidated financial position, results of operations or cash flows. A description of the material pending legal proceedings, other than ordinary routine litigation incidental to the business is as follows: Alaskan Way Viaduct Matter In January 2011, Seattle Tunnel Partners (“STP”), a joint venture between Dragados USA, Inc. and the Company, entered into a design-build contract with the Washington State Department of Transportation (“WSDOT”) for the construction of a large-diameter bored tunnel in downtown Seattle, King County, Washington to replace the Alaskan Way Viaduct, also known as State Route 99. The Company has a 45% interest in STP. The construction of the large-diameter bored tunnel required the use of a tunnel boring machine (“TBM”). In December 2013, the TBM struck a steel pipe, installed by WSDOT as a well casing for an exploratory well. The TBM was significantly damaged and was required to be repaired. STP has asserted that the steel pipe casing was a differing site condition that WSDOT failed to properly disclose. The Disputes Review Board mandated by the contract to hear disputes issued a decision finding the steel casing was a Type I (material) differing site condition. WSDOT did not accept that finding. The TBM was insured under a Builder’s Risk Insurance Policy (the “Policy”) with Great Lakes Reinsurance (UK) PLC and a consortium of other insurers (the “Insurers”). STP submitted the claims to the Insurers and requested interim payments under the Policy. The Insurers refused to pay and denied coverage. In June 2015, STP filed a lawsuit in the King County Superior Court, State of Washington seeking declaratory relief concerning contract interpretation, as well as damages as a result of the Insurers’ breach of their obligations under the terms of the Policy. STP is also asserting extra-contractual and statutory claims against the Insurers. STP submitted damages to the Insurers in the King County lawsuit in the amount of $532 million. WSDOT is deemed a plaintiff since WSDOT is an insured under the Policy and had filed its own claim for damages. Hitachi Zosen (“Hitachi”), the manufacturer of the TBM, joined the case as a plaintiff for costs incurred to repair the damages to the TBM. In April and September 2018, rulings received on pre-trial motions limited some of the potential recoveries under the Policy for STP, WSDOT and Hitachi. On August 2, 2021, the Court of Appeals reversed in part certain of those limitations but affirmed other parts of those rulings. On September 15, 2022, the Washington Supreme Court affirmed the decision of the Court of Appeals, which limits recovery of certain damages under the Policy. Based on the rulings of the Court of Appeals, the case will continue for adjudication on the remaining facts and legal issues, including the number of covered occurrences which could increase the amount of available coverage under the Policy and the amount of investigative costs that are subject to the Policy limits. STP also has claims for costs, fees, pre-judgment interest and extra-contractual and statutory claims, which are not subject to the Policy limits. With respect to STP’s direct and indirect claims against the Insurers, management has included in receivables an estimate of the total anticipated recovery concluded to be probable. In March 2016, WSDOT filed a complaint against STP in Thurston County Superior Court alleging breach of contract, seeking $57.2 million in delay-related damages and seeking declaratory relief concerning contract interpretation. STP subsequently filed a counterclaim against WSDOT. The jury trial between STP and WSDOT commenced on October 7, 2019 and concluded on December 13, 2019, with a jury verdict in favor of WSDOT awarding them $57.2 million in damages. The Company recorded the impact of the jury verdict during the fourth quarter of 2019, resulting in a pre-tax charge of $166.8 million, which included $25.7 million for the Company’s 45% proportionate share of the $57.2 million in damages awarded by the jury to WSDOT. The charge was for non-cash write-downs primarily related to the costs and estimated earnings in excess of billings and receivables that the Company previously recorded to reflect its expected recovery in this case. STP filed a petition for discretionary review by the Washington Supreme Court on July 12, 2022, which was denied by the Supreme Court on October 10, 2022. On October 18, 2022, STP paid the damages and associated interest from the judgment, which included the Company’s proportionate share of $34.6 million. As a result, the lawsuit between STP and WSDOT has concluded. George Washington Bridge Bus Station Matter In August 2013, Tutor Perini Building Corp. (“TPBC”) entered into a contract with the George Washington Bridge Bus Station Development Venture, LLC (the “Developer”) to renovate the George Washington Bridge Bus Station, a mixed-use facility owned by the Port Authority of New York and New Jersey (the “Port Authority”) that serves as a transit facility and retail space. The $100 million project experienced significant design errors and associated delays, resulting in damages to TPBC and its subcontractors, including WDF and Five Star, wholly owned subsidiaries of the Company. The facility opened to the public on May 16, 2017. On February 26, 2015, the Developer filed a demand for arbitration, subsequently amended, seeking $30 million in alleged damages and declaratory relief that TPBC’s requests for additional compensation were invalid due to lack of notice. TPBC denied the Developer’s claims and filed a counterclaim in March 2018. TPBC was seeking in excess of $113 million in the arbitration, which included unpaid contract balance claims, the return of $29 million retained by the Developer in alleged damages, as well as extra work claims, pass-through claims and delay claims. The Developer was seeking an additional $4.8 million in damages from TPBC beyond the $29 million it had withheld. Hearings on the merits commenced on September 24, 2018 before the arbitration panel. On June 4, 2019, the arbitration panel, as confirmed by the U.S. District Court in the Southern District of New York, issued a writ of attachment for $23 million of the $29 million discussed above. On October 7, 2019, the Developer filed for bankruptcy protection in the Southern District of New York under Chapter 11 of the Bankruptcy Code. The filing for bankruptcy stayed the pending arbitration proceedings. TPBC appeared in the bankruptcy proceedings on October 8, 2019 and filed a Proof of Claim in the amount of $113 million on December 13, 2019. On June 5, 2020, the Developer, secured lenders and the Port Authority announced that they had reached a settlement of their disputes. As part of the settlement, the Port Authority waived the enforcement of its right to seek a “cure” pursuant to its lease agreement with the Developer, which requires construction costs be paid prior to any sale of the leasehold, the sole asset in the Developer’s bankruptcy estate to be distributed in this bankruptcy. On July 14, 2020, the bankruptcy court conducted a hearing to determine (1) whether to approve the settlement agreement between the Developer, secured lenders and the Port Authority; and (2) whether TPBC can assert third-party beneficiary rights to the lease agreement and require that prior to the sale of the leasehold, any outstanding costs owed to contractors for the cost of building the project must be paid pursuant to the lease agreement’s “cure” provisions. On August 12, 2020, the bankruptcy court approved the settlement and denied TPBC’s third-party beneficiary rights under the lease agreement. On August 20, 2020, TPBC filed an appeal with the U.S. District Court for the Southern District of New York seeking to challenge the denial of its third-party beneficiary rights under the lease agreement’s “cure” provisions to avoid being subordinate to the claims of the secured lenders in the bankruptcy proceedings, which was denied by the U.S. District Court on August 4, 2021. TPBC filed an appeal with the U.S. Court of Appeals for the Second Circuit on August 20, 2021, which conducted oral arguments on October 27, 2022. On April 10, 2023, the Second Circuit affirmed the bankruptcy court’s and district court’s denials of TPBC’s third-party beneficiary rights under the project’s lease agreement’s “cure” provisions and concluded that TPBC’s claims were not otherwise entitled to priority treatment under the Bankruptcy Code and should therefore be treated as unsecured claims that are subordinate to the claims of the secured lenders in the Developer’s bankruptcy case. As a result of this adverse decision from the Second Circuit, the Company recorded a non-cash, pre-tax charge to income (loss) from construction operations of $83.6 million in the first quarter of 2023. TPBC has no further avenues to recover its costs from the Developer or the bankruptcy-related actions, nor does the Developer have any ability to recover its claims against TPBC, and these lawsuits have now concluded. Separately, on July 2, 2018, TPBC filed a lawsuit against the Port Authority, as owner of the project, seeking the same $113 million in damages pursuant to the lease agreement between the Port Authority and the Developer. On August 20, 2018, the Port Authority filed a motion to dismiss all causes of action, which was denied by the court on July 1, 2019. The Port Authority appealed this decision on July 15, 2019. On February 18, 2021, the Appellate Division affirmed in part and reversed in part the trial court's denial of the Port Authority's motion to dismiss TPBC’s causes of action. On April 11, 2022, the court granted the Port Authority’s motion to dismiss on statutory notice grounds. The Company filed a notice of appeal on April 28, 2022, which is pending. In addition, on August 11, 2021, TPBC filed a second lawsuit in state court against the Port Authority alleging unjust enrichment and tortious interference with TPBC’s right to recover under the lease agreement’s “cure” provision in the bankruptcy proceeding. The case was removed to the federal bankruptcy court on September 21, 2021. The Port Authority filed a motion to dismiss on March 4, 2022, which the federal bankruptcy court granted on September 30, 2022. This lawsuit is now concluded. On January 27, 2020, TPBC filed separate litigation in the U.S. District Court for the Southern District of New York in which TPBC asserted related claims seeking the same $113 million in damages against the individual owners of the Developer for their wrongful conversion of project funds and against lenders that received interest payments from project funds and other amounts earmarked to pay the contractors. On December 29, 2020, the court granted in part and denied in part the defendants’ motions to dismiss, resulting in the lender defendants being dismissed from the lawsuit and the lawsuit against the individual owners of the Developer continuing. The lawsuit was refiled in New York state court on July 26, 2021. On June 8, 2022, the court certified the class under the New York construction trust fund statutes. The case remains pending before the court. Management has made an estimate of the total anticipated recovery of TPBC’s claims against the individual owners of the Developer and the Port Authority on this project, and such estimate is included in revenue recorded to date.

Share-Based Compensation

Share-Based Compensation	3 Months Ended
	Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation	Share-Based Compensation As of March 31, 2023, there were 868,622 shares of common stock available for grant under the Tutor Perini Corporation Omnibus Incentive Plan. During the three months ended March 31, 2023 and 2022, the Company granted the following share-based instruments: (1) RSUs totaling 590,188 and 375,769, respectively, with weighted-average grant date fair values per unit of $8.66 and $10.53, respectively; and (2) cash-settled performance stock units (“CPSUs”) totaling 901,541 and 315,768, respectively, with weighted-average grant date fair values per unit of $13.78 and $14.89, respectively. During the three months ended March 31, 2023, the Company also granted a cash award with a service-based vesting condition and payout indexed to 90,000 shares of the Company’s common stock, with a weighted-average grant date fair value of $8.98 per share. During the three months ended March 31, 2022, the Company granted 7,500 shares of unrestricted stock with a weighted-average grant date fair value of $19.24 per share. As of March 31, 2023 and December 31, 2022, the Company recognized liabilities for CPSUs and RSUs with guaranteed minimum payouts and certain cash-settled awards on the Condensed Consolidated Balance Sheets totaling approximately $3.4 million and $2.1 million, respectively. During the three months ended March 31, 2022, the Company paid approximately $2.6 million to settle certain awards. For the three months ended March 31, 2023 and 2022, the Company recognized, as part of general and administrative expenses, costs for share-based payment arrangements totaling $3.1 million and $3.4 million, respectively. As of March 31, 2023, the balance of unamortized share-based compensation expense was $25.3 million, which is expected to be recognized over a weighted-average period of 2.3 years.

Employee Pension Plans

Employee Pension Plans	3 Months Ended
	Mar. 31, 2023
Retirement Benefits [Abstract]
Employee Pension Plans	Employee Pension Plans The Company has a defined benefit pension plan and an unfunded supplemental retirement plan. Effective June 1, 2004, all benefit accruals under these plans were frozen; however, the current vested benefit was preserved. The pension disclosure presented below includes aggregated amounts for both of the Company’s plans. The following table sets forth a summary of the net periodic benefit cost for the three months ended March 31, 2023 and 2022: Three Months Ended March 31, (in thousands) 2023 2022 Interest cost $ 969 $ 646 Service cost 255 240 Expected return on plan assets (978) (973) Recognized net actuarial losses 413 639 Net periodic benefit cost $ 659 $ 552 Due to availability of our prefunded pension balance related to the defined benefit pension plan, the Company was not required to make any cash payments during the three months ended March 31, 2023. The Company expects to contribute $1.3 million in cash by the end of 2023. Due to the election of certain options provided under the American Rescue Plan Act of 2021, enacted

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The fair value hierarchy established by ASC 820, Fair Value Measurement , prioritizes the use of inputs used in valuation techniques into the following three levels: • Level 1 inputs are observable quoted prices in active markets for identical assets or liabilities • Level 2 inputs are observable, either directly or indirectly, but are not Level 1 inputs • Level 3 inputs are unobservable The following fair value hierarchy table presents the Company’s assets that are measured at fair value on a recurring basis as of March 31, 2023 and December 31, 2022: As of March 31, 2023 As of December 31, 2022 Fair Value Hierarchy Fair Value Hierarchy (in thousands) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash and cash equivalents (a) $ 282,695 $ — $ — $ 282,695 $ 259,351 $ — $ — $ 259,351 Restricted cash (a) 19,946 — — 19,946 14,480 — — 14,480 Restricted investments (b) — 88,240 — 88,240 — 91,556 — 91,556 Investments in lieu of retention (c) 23,177 67,299 — 90,476 20,100 68,228 — 88,328 Total $ 325,818 $ 155,539 $ — $ 481,357 $ 293,931 $ 159,784 $ — $ 453,715 ____________________________________________________________________________________________________ (a) Includes money market funds and short-term investments with maturity dates of three months or less when acquired. (b) Restricted investments, as of March 31, 2023 and December 31, 2022, consist of available-for-sale (“AFS”) debt securities, which are valued based on pricing models determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets; therefore, they are classified as Level 2 assets. (c) Investments in lieu of retention are included in retention receivable as of March 31, 2023 and December 31, 2022, and are comprised of money market funds of $23.2 million and $20.1 million, respectively, and AFS debt securities of $67.3 million and $68.2 million, respectively. The fair values of the money market funds are measured using quoted market prices; therefore, they are classified as Level 1 assets. The fair values of AFS debt securities are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets; therefore, they are classified as Level 2 assets. Investments in AFS debt securities consisted of the following as of March 31, 2023 and December 31, 2022: As of March 31, 2023 As of December 31, 2022 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Fair Value Amortized Cost Unrealized Gains Unrealized Losses Fair Value Restricted investments: Corporate debt securities $ 52,027 $ 22 $ (3,045) $ 49,004 $ 53,452 $ 1 $ (3,550) $ 49,903 U.S. government agency securities 32,099 43 (1,379) 30,763 34,920 13 (1,688) 33,245 Municipal bonds 9,039 — (1,017) 8,022 9,211 — (1,257) 7,954 Corporate certificates of deposit 504 — (53) 451 507 — (53) 454 Total restricted investments 93,669 65 (5,494) 88,240 98,090 14 (6,548) 91,556 Investments in lieu of retention: Corporate debt securities 69,458 31 (3,219) 66,270 70,968 1 (3,724) 67,245 Municipal bonds 819 210 — 1,029 818 165 — 983 Total investments in lieu of retention 70,277 241 (3,219) 67,299 71,786 166 (3,724) 68,228 Total AFS debt securities $ 163,946 $ 306 $ (8,713) $ 155,539 $ 169,876 $ 180 $ (10,272) $ 159,784 The following table summarizes the fair value and gross unrealized losses aggregated by category and the length of time that individual securities have been in a continuous unrealized loss position as of March 31, 2023 and December 31, 2022: As of March 31, 2023 Less than 12 Months 12 Months or Greater Total (in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Restricted investments: Corporate debt securities $ 11,456 $ (204) $ 32,499 $ (2,841) $ 43,955 $ (3,045) U.S. government agency securities 13,782 (154) 14,194 (1,225) 27,976 (1,379) Municipal bonds 737 (23) 7,285 (994) 8,022 (1,017) Corporate certificates of deposit — — 451 (53) 451 (53) Total restricted investments 25,975 (381) 54,429 (5,113) 80,404 (5,494) Investments in lieu of retention: Corporate debt securities 13,065 (146) 46,350 (3,073) 59,415 (3,219) Total investments in lieu of retention 13,065 (146) 46,350 (3,073) 59,415 (3,219) Total AFS debt securities $ 39,040 $ (527) $ 100,779 $ (8,186) $ 139,819 $ (8,713) As of December 31, 2022 Less than 12 Months 12 Months or Greater Total (in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Restricted investments: Corporate debt securities $ 23,559 $ (733) $ 25,842 $ (2,817) $ 49,401 $ (3,550) U.S. government agency securities 24,834 (939) 5,593 (749) 30,427 (1,688) Municipal bonds 4,998 (672) 2,956 (585) 7,954 (1,257) Corporate certificates of deposit 63 (12) 391 (41) 454 (53) Total restricted investments 53,454 (2,356) 34,782 (4,192) 88,236 (6,548) Investments in lieu of retention: Corporate debt securities 34,553 (843) 32,391 (2,881) 66,944 (3,724) Total investments in lieu of retention 34,553 (843) 32,391 (2,881) 66,944 (3,724) Total AFS debt securities $ 88,007 $ (3,199) $ 67,173 $ (7,073) $ 155,180 $ (10,272) The unrealized losses in AFS debt securities as of March 31, 2023 and December 31, 2022 are primarily attributable to market interest rate increases and not a deterioration in credit quality of the issuers. Management evaluated the unrealized losses in AFS debt securities considering factors including credit ratings and other relevant information, which may indicate that contractual cash flows are not expected to occur. Based on the analysis, management determined that credit losses did not exist for AFS debt securities in an unrealized loss position as of March 31, 2023 and December 31, 2022. It is not considered likely that the Company will be required to sell the investments before full recovery of the amortized cost basis of the AFS debt securities, which may be at maturity. As a result, consistent with the same period in 2022, the Company has not recognized any impairment losses in earnings during the three months ended March 31, 2023. The amortized cost and fair value of AFS debt securities by contractual maturity as of March 31, 2023 are summarized in the table below. Actual maturities may differ from contractual maturities because certain borrowers have the right to call or prepay certain obligations. (in thousands) Amortized Cost Fair Value Due within one year $ 25,973 $ 25,531 Due after one year through five years 127,355 120,639 Due after five years 10,618 9,369 Total $ 163,946 $ 155,539 The carrying values of receivables, payables and other amounts arising out of normal contract activities, including retention, which may be settled beyond one year, are estimated to approximate fair value. Of the Company’s long-term debt, the fair value of the 2017 Senior Notes was $352.5 million and $439.7 million as of March 31, 2023 and December 31, 2022, respectively. The fair values of the 2017 Senior Notes were determined using Level 1 inputs, specifically current observable market prices. The fair value of the Term Loan B was $385.4 million and $389.5 million as of March 31, 2023 and December 31, 2022, respectively. The fair values of the Term Loan B were determined using Level 2 inputs, specifically third-party quoted market prices. The reported value of the Company’s remaining borrowings approximates fair value as of March 31, 2023 and December 31, 2022.

Variable Interest Entities (VIE

Variable Interest Entities (VIEs)	3 Months Ended
	Mar. 31, 2023
Variable Interest Entities [Abstract]
Variable Interest Entities (VIEs)	Variable Interest Entities (VIEs) The Company may form joint ventures or partnerships with third parties for the execution of projects. In accordance with ASC 810, Consolidation (“ASC 810”), the Company assesses its partnerships and joint ventures at inception to determine if any meet the qualifications of a VIE. The Company considers a joint venture a VIE if either (a) the total equity investment is not sufficient to permit the entity to finance its activities without additional subordinated financial support, (b) characteristics of a controlling financial interest are missing (either the ability to make decisions through voting or other rights, the obligation to absorb the expected losses of the entity or the right to receive the expected residual returns of the entity), or (c) the voting rights of the equity holders are not proportional to their obligations to absorb the expected losses of the entity and/or their rights to receive the expected residual returns of the entity, and substantially all of the entity’s activities either involve or are conducted on behalf of an investor that has disproportionately few voting rights. Upon the occurrence of certain events outlined in ASC 810, the Company reassesses its initial determination of whether a joint venture is a VIE. ASC 810 also requires the Company to determine whether it is the primary beneficiary of the VIE. The Company concludes that it is the primary beneficiary and consolidates the VIE if the Company has both (a) the power to direct the economically significant activities of the VIE and (b) the obligation to absorb losses of, or the right to receive benefits from, the VIE that could potentially be significant to the VIE. The Company considers the contractual agreements that define the ownership structure, distribution of profits and losses, risks, responsibilities, indebtedness, voting rights and board representation of the respective parties in determining if the Company is the primary beneficiary. The Company also considers all parties that have direct or implicit variable interests when determining whether it is the primary beneficiary. In accordance with ASC 810, management’s assessment of whether the Company is the primary beneficiary of a VIE is performed continuously. As of March 31, 2023, the Company had unconsolidated VIE-related current assets and liabilities of $0.6 million and $0.2 million, respectively, included in the Company’s Condensed Consolidated Balance Sheets. As of December 31, 2022, the Company had unconsolidated VIE-related current assets of $0.4 million included in the Company’s Condensed Consolidated Balance Sheets. The Company’s maximum exposure to loss as a result of its investments in unconsolidated VIEs is typically limited to the aggregate of the carrying value of the investment and future funding commitments. There were no future funding requirements for the unconsolidated VIEs as of March 31, 2023. As of March 31, 2023, the Company’s Condensed Consolidated Balance Sheets included current and noncurrent assets of $506.4 million and $28.9 million, respectively, as well as current liabilities of $552.4 million related to the operations of its consolidated VIEs. As of December 31, 2022, the Company’s Condensed Consolidated Balance Sheets included current and noncurrent assets of $527.3 million and $22.4 million, respectively, as well as current liabilities of $567.3 million related to the operations of its consolidated VIEs. Below is a discussion of some of the Company’s more significant or unique VIEs. The Company established a joint venture to construct the Purple Line Extension Section 2 (Tunnels and Stations) and Section 3 (Stations) mass-transit projects in Los Angeles, California with an original combined value of approximately $2.8 billion. The Company has a 75% interest in the joint venture with the remaining 25% held by O&G Industries, Inc. The joint venture was initially financed with contributions from the partners and, per the terms of the joint venture agreement, the partners may be required to provide additional capital contributions in the future. The Company has determined that this joint venture is a VIE for which the Company is the primary beneficiary. The Company also established a joint venture with Parsons Corporation (“Parsons”) to construct the Newark Liberty International Airport Terminal One project, a transportation infrastructure project in Newark, New Jersey with an original value of approximately $1.4 billion. The Company has an 80% interest in the joint venture with the remaining 20% held by Parsons. The joint venture was initially financed with contributions from the partners and, per the terms of the joint venture agreement, the partners may be required to provide additional capital contributions in the future. The Company has determined that this joint venture is a VIE for which the Company is the primary beneficiary.

Changes in Equity

Changes in Equity	3 Months Ended
	Mar. 31, 2023
Stockholders' Equity Note [Abstract]
Changes in Equity	Changes in Equity A reconciliation of the changes in equity for the three months ended March 31, 2023 and 2022 is provided below: Three Months Ended March 31, 2023 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - December 31, 2022 $ 51,521 $ 1,140,933 $ 304,301 $ (47,037) $ (7,734) $ 1,441,984 Net income (loss) — — (49,196) — 267 (48,929) Other comprehensive income — — — 1,727 153 1,880 Share-based compensation — 1,395 — — — 1,395 Issuance of common stock, net 124 (247) — — — (123) Contributions from noncontrolling interests — — — — 2,000 2,000 Distributions to noncontrolling interests — — — — (8,500) (8,500) Balance - March 31, 2023 $ 51,645 $ 1,142,081 $ 255,105 $ (45,310) $ (13,814) $ 1,389,707 Three Months Ended March 31, 2022 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - December 31, 2021 $ 51,096 $ 1,133,150 $ 514,310 $ (43,635) $ 18,799 $ 1,673,720 Net income (loss) — — (21,634) — 2,821 (18,813) Other comprehensive loss — — — (3,110) (379) (3,489) Share-based compensation — 1,724 — — — 1,724 Issuance of common stock, net 104 (186) — — — (82) Contributions from noncontrolling interests — — — — 961 961 Distributions to noncontrolling interests — — — — (7,500) (7,500) Balance - March 31, 2022 $ 51,200 $ 1,134,688 $ 492,676 $ (46,745) $ 14,702 $ 1,646,521

Other Comprehensive Income (Los

Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss)	Other Comprehensive Income (Loss) ASC 220, Comprehensive Income , establishes standards for reporting comprehensive income and its components in the consolidated financial statements. The Company reports the change in pension benefit plan assets/liabilities, cumulative foreign currency translation and change in fair value of investments as components of accumulated other comprehensive income (loss) (“AOCI”). The components of other comprehensive income (loss) and the related tax effects for the three months ended March 31, 2023 and 2022 were as follows: Three Months Ended March 31, 2023 Three Months Ended March 31, 2022 (in thousands) Before-Tax Amount Tax Expense Net-of-Tax Amount Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Other comprehensive income (loss): Defined benefit pension plan adjustments $ 415 $ (114) $ 301 $ 639 $ (181) $ 458 Foreign currency translation adjustments 340 (90) 250 256 1 257 Unrealized gain (loss) in fair value of investments 1,685 (356) 1,329 (5,514) 1,310 (4,204) Total other comprehensive income (loss) 2,440 (560) 1,880 (4,619) 1,130 (3,489) Less: Other comprehensive income (loss) attributable to noncontrolling interests 153 — 153 (379) — (379) Total other comprehensive income (loss) attributable to Tutor Perini Corporation $ 2,287 $ (560) $ 1,727 $ (4,240) $ 1,130 $ (3,110) The changes in AOCI balances by component (after tax) attributable to Tutor Perini Corporation and attributable to noncontrolling interests during the three months ended March 31, 2023 and 2022 were as follows: Three Months Ended March 31, 2023 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of December 31, 2022 $ (32,637) $ (7,241) $ (7,159) $ (47,037) Other comprehensive income before reclassifications — 231 1,171 1,402 Amounts reclassified from AOCI 301 — 24 325 Total other comprehensive income 301 231 1,195 1,727 Balance as of March 31, 2023 $ (32,336) $ (7,010) $ (5,964) $ (45,310) Attributable to Noncontrolling Interests: Balance as of December 31, 2022 $ — $ (799) $ (931) $ (1,730) Other comprehensive income — 19 134 153 Balance as of March 31, 2023 $ — $ (780) $ (797) $ (1,577) Three Months Ended March 31, 2022 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of December 31, 2021 $ (37,866) $ (5,787) $ 18 $ (43,635) Other comprehensive loss before reclassifications — (9) (3,568) (3,577) Amounts reclassified from AOCI 458 — 9 467 Total other comprehensive income (loss) 458 (9) (3,559) (3,110) Balance as of March 31, 2022 $ (37,408) $ (5,796) $ (3,541) $ (46,745) Attributable to Noncontrolling Interests: Balance as of December 31, 2021 $ — $ 542 $ — $ 542 Total other comprehensive income (loss) — 266 (645) (379) Balance as of March 31, 2022 $ — $ 808 $ (645) $ 163 The significant items reclassified out of AOCI and the corresponding location and impact on the Condensed Consolidated Statements of Operations during the three months ended March 31, 2023 and 2022 were as follows: Three Months Ended (in thousands) 2023 2022 Component of AOCI: Defined benefit pension plan adjustments (a) $ 415 $ 639 Income tax benefit (b) (114) (181) Net of tax $ 301 $ 458 Unrealized loss in fair value of investment adjustments (a) $ 30 $ 11 Income tax benefit (b) (6) (2) Net of tax $ 24 $ 9 ___________________________________________________________________________________________________ (a) Amounts included in other income, net on the Condensed Consolidated Statements of Operations. (b) Amounts included in income tax benefit on the Condensed Consolidated Statements of Operations.

Business Segments

Business Segments	3 Months Ended
	Mar. 31, 2023
Segment Reporting [Abstract]
Business Segments	Business Segments The Company offers general contracting, pre-construction planning and comprehensive project management services, including planning and scheduling of manpower, equipment, materials and subcontractors required for the timely completion of a project in accordance with the terms and specifications contained in a construction contract. The Company also offers self-performed construction services: site work, concrete forming and placement, steel erection, electrical, mechanical, plumbing, and HVAC (heating, ventilation and air conditioning). As described below, the Company’s business is conducted through three segments: Civil, Building and Specialty Contractors. These segments are determined based on how the Company’s Chairman and Chief Executive Officer (chief operating decision maker) aggregates business units when evaluating performance and allocating resources. The Civil segment specializes in public works construction and the replacement and reconstruction of infrastructure. The contracting services provided by the Civil segment include construction and rehabilitation of highways, bridges, tunnels, mass-transit systems, military defense facilities, and water management and wastewater treatment facilities. The Building segment has significant experience providing services for private and public works customers in a number of specialized building markets, including: hospitality and gaming, transportation, health care, commercial offices, government facilities, sports and entertainment, education, correctional facilities, biotech, pharmaceutical, industrial and technology. The Specialty Contractors segment specializes in electrical, mechanical, plumbing, HVAC and fire protection systems for a full range of civil and building construction projects in the industrial, commercial, hospitality and gaming, and mass-transit end markets. This segment provides the Company with unique strengths and capabilities that allow the Company to position itself as a full-service contractor with greater control over scheduled work, project delivery, and cost and risk management. To the extent that a contract is co-managed and co-executed among segments, the Company allocates the share of revenues and costs of the contract to each segment to reflect the shared responsibilities in the management and execution of the project. The following tables set forth certain reportable segment information relating to the Company’s operations for the three months ended March 31, 2023 and 2022: Reportable Segments (in thousands) Civil Building Specialty Total Corporate Consolidated Three Months Ended March 31, 2023 Total revenue $ 378,224 $ 229,291 $ 196,748 $ 804,263 $ — $ 804,263 Elimination of intersegment revenue (28,354) 362 29 (27,963) — (27,963) Revenue from external customers $ 349,870 $ 229,653 $ 196,777 $ 776,300 $ — $ 776,300 Income (loss) from construction operations $ 18,012 $ (70,209) $ (12,448) $ (64,645) (a) $ (17,300) (b) $ (81,945) Capital expenditures $ 15,065 $ 2,017 $ 444 $ 17,526 $ 270 $ 17,796 Depreciation and amortization (c) $ 6,981 $ 457 $ 619 $ 8,057 $ 2,351 $ 10,408 Three Months Ended March 31, 2022 Total revenue $ 460,742 $ 355,978 $ 230,864 $ 1,047,584 $ — $ 1,047,584 Elimination of intersegment revenue (69,947) (25,330) (153) (95,430) — (95,430) Revenue from external customers $ 390,795 $ 330,648 $ 230,711 $ 952,154 $ — $ 952,154 Income (loss) from construction operations $ (967) $ 9,464 $ (3,894) $ 4,603 (d) $ (14,510) (b) $ (9,907) Capital expenditures $ 11,175 $ 2 $ 638 $ 11,815 $ 213 $ 12,028 Depreciation and amortization (c) $ 17,000 $ 401 $ 502 $ 17,903 $ 2,335 $ 20,238 ____________________________________________________________________________________________________ (a) During the three months ended March 31, 2023, the Company’s income (loss) from construction operations was negatively impacted by an adverse legal ruling on a completed mixed-use project in New York, which resulted in a non-cash, pre-tax charge of $83.6 million ($60.1 million, or $1.17 per diluted share, after-tax), of which $72.2 million impacted the Building segment and $11.4 million impacted the Specialty Contractors segment, as well as an unfavorable adjustment of $28.0 million ($22.2 million, or $0.43 per diluted share, after tax) for a Civil segment mass-transit project in California, which resulted from the successful negotiation of significant lower margin (and lower risk) change orders that increased the project’s overall estimated profit but reduced the project’s percentage of completion and overall margin percentage as of March 31, 2023. (b) Consists primarily of corporate general and administrative expenses. (c) Depreciation and amortization is included in income (loss) from construction operations. (d) During the three months ended March 31, 2022, the Company’s income (loss) from construction operations was negatively impacted by $25.5 million ($18.3 million, or $0.36 per diluted share, after tax) due to an adverse legal ruling on a dispute related to a completed Civil segment bridge project in New York and an adverse impact of $17.6 million ($13.9 million, or $0.27 per diluted share, after tax) for a Civil segment mass-transit project in California, which resulted from the successful negotiation of significant lower margin (and lower risk) change orders that increased the project’s overall estimated profit but reduced the project’s percentage of completion and overall margin percentage as of March 31, 2022. A reconciliation of segment results to the consolidated loss before income taxes is as follows: Three Months Ended March 31, (in thousands) 2023 2022 Loss from construction operations $ (81,945) $ (9,907) Other income, net 6,417 3,697 Interest expense (21,513) (16,492) Loss before income taxes $ (97,041) $ (22,702) Total assets by segment were as follows: (in thousands) As of March 31, As of December 31, Civil $ 3,368,743 $ 3,402,934 Building 879,321 898,816 Specialty Contractors 385,806 483,535 Corporate and other (a) (157,092) (242,485) Total assets $ 4,476,778 $ 4,542,800 ____________________________________________________________________________________________________ (a) Consists principally of cash, equipment, tax-related assets and insurance-related assets, offset by the elimination of assets related to intersegment revenue. Major Customer Revenue from a single customer with multiple projects, impacting the Civil, Building and Specialty Contractors segments, represented 19.5% of the Company’s consolidated revenue for the three months ended March 31, 2023.

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 31, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The following tables disaggregate revenue by end market, customer type and contract type, which the Company believes best depict how the nature, amount, timing and uncertainty of its revenue and cash flows are affected by economic factors for the three months ended March 31, 2023 and 2022. Three Months Ended (in thousands) 2023 2022 Civil segment revenue by end market: Mass transit (includes certain transportation and tunneling projects) $ 188,460 $ 257,138 Military defense facilities 85,567 49,794 Bridges 30,645 41,247 Commercial and industrial sites 22,504 11,910 Other 22,694 30,706 Total Civil segment revenue $ 349,870 $ 390,795 Three Months Ended (in thousands) 2023 2022 Building segment revenue by end market: Municipal and government $ 89,620 $ 75,955 Health care facilities 50,417 35,560 Education facilities 48,077 29,860 Commercial and industrial facilities 38,271 39,086 Mass transit (includes transportation projects) 33,320 60,201 Hospitality and gaming 19,606 76,918 Sports and entertainment 13,466 4,772 Other (a) (63,124) 8,296 Total Building segment revenue $ 229,653 $ 330,648 Three Months Ended (in thousands) 2023 2022 Specialty Contractors segment revenue by end market: Commercial and industrial facilities $ 54,227 $ 29,857 Mass transit (includes certain transportation and tunneling projects) 47,545 119,027 Multi-unit residential 32,796 24,938 Water 28,334 21,447 Federal government 12,619 6,748 Health care facilities 9,531 8,574 Education facilities 8,253 12,276 Other (a) 3,472 7,844 Total Specialty Contractors segment revenue $ 196,777 $ 230,711 Three Months Ended Three Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by customer type: State and local agencies $ 213,427 $ 136,601 $ 85,682 $ 435,710 $ 313,842 $ 123,690 $ 92,231 $ 529,763 Federal agencies 95,984 41,735 1,893 139,612 50,694 46,098 11,334 108,126 Private owners (a) 40,459 51,317 109,202 200,978 26,259 160,860 127,146 314,265 Total revenue $ 349,870 $ 229,653 $ 196,777 $ 776,300 $ 390,795 $ 330,648 $ 230,711 $ 952,154 Three Months Ended Three Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by contract type: Fixed price $ 311,373 $ 96,116 $ 166,155 $ 573,644 $ 336,993 $ 102,518 $ 199,063 $ 638,574 Guaranteed maximum price (a) 62 69,778 1,756 71,596 293 171,509 5,333 177,135 Unit price 33,012 — 24,064 57,076 50,510 33 14,822 65,365 Cost plus fee and other 5,423 63,759 4,802 73,984 2,999 56,588 11,493 71,080 Total revenue $ 349,870 $ 229,653 $ 196,777 $ 776,300 $ 390,795 $ 330,648 $ 230,711 $ 952,154 ____________________________________________________________________________________________________ (a) Includes the negative impact of a non-cash charge in the first quarter of 2023 resulting from an adverse legal ruling. Refer to Note 17, Business Segments , for additional details.

Contract Assets and Liabiliti_2

Contract Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2023
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Schedule of Contract Assets and Liabilities	Contract assets include amounts due under retention provisions, costs and estimated earnings in excess of billings and capitalized contract costs. The amounts as included on the Condensed Consolidated Balance Sheets consisted of the following: (in thousands) As of March 31, As of December 31, Retention receivable $ 563,967 $ 585,556 Costs and estimated earnings in excess of billings: Claims 599,460 677,367 Unapproved change orders 619,888 601,681 Other unbilled costs and profits 80,438 98,480 Total costs and estimated earnings in excess of billings 1,299,786 1,377,528 Capitalized contract costs 42,606 49,441 Total contract assets $ 1,906,359 $ 2,012,525 Contract liabilities include amounts owed under retention provisions and billings in excess of costs and estimated earnings. The amount as reported on the Condensed Consolidated Balance Sheets consisted of the following: (in thousands) As of March 31, As of December 31, Retention payable $ 245,972 $ 246,562 Billings in excess of costs and estimated earnings 978,505 975,812 Total contract liabilities $ 1,224,477 $ 1,222,374

Cash, Cash Equivalents and Re_2

Cash, Cash Equivalents and Restricted Cash (Tables)	3 Months Ended
	Mar. 31, 2023
Cash and Cash Equivalents [Abstract]
Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash	The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets to the amounts shown in the Condensed Consolidated Statements of Cash Flows: (in thousands) As of March 31, As of December 31, Cash and cash equivalents available for general corporate purposes $ 63,928 $ 47,711 Joint venture cash and cash equivalents 218,767 211,640 Cash and cash equivalents 282,695 259,351 Restricted cash 19,946 14,480 Total cash, cash equivalents and restricted cash $ 302,641 $ 273,831

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	3 Months Ended
	Mar. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The Company calculates the effect of the potentially dilutive RSUs and stock options using the treasury stock method. Three Months Ended March 31, (in thousands, except per common share data) 2023 2022 Net loss attributable to Tutor Perini Corporation $ (49,196) $ (21,634) Weighted-average common shares outstanding, basic 51,551 51,107 Effect of dilutive RSUs and stock options — — Weighted-average common shares outstanding, diluted 51,551 51,107 Net loss attributable to Tutor Perini Corporation per common share: Basic $ (0.95) $ (0.42) Diluted $ (0.95) $ (0.42) Anti-dilutive securities not included above 2,857 3,431

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in Carrying Amount of Goodwill	The following table presents the changes in the carrying amount of goodwill since its inception through March 31, 2023: (in thousands) Civil Building Specialty Total Gross goodwill as of December 31, 2022 $ 492,074 $ 424,724 $ 156,193 $ 1,072,991 Accumulated impairment as of December 31, 2022 (286,931) (424,724) (156,193) (867,848) Goodwill as of December 31, 2022 205,143 — — 205,143 Current year activity — — — — Goodwill as of March 31, 2023 $ 205,143 $ — $ — $ 205,143
Schedule of Intangible Assets	Intangible assets consist of the following: As of March 31, 2023 Weighted-Average Amortization Period (in thousands) Cost Accumulated Accumulated Impairment Charge Carrying Value Trade names (non-amortizable) $ 117,600 $ — $ (67,190) $ 50,410 Indefinite Trade names (amortizable) 69,250 (26,445) (23,232) 19,573 20 years Contractor license 6,000 — (6,000) — N/A Customer relationships 39,800 (23,155) (16,645) — N/A Construction contract backlog 149,290 (149,290) — — N/A Total $ 381,940 $ (198,890) $ (113,067) $ 69,983 As of December 31, 2022 Weighted-Average Amortization Period (in thousands) Cost Accumulated Accumulated Impairment Charge Carrying Value Trade names (non-amortizable) $ 117,600 $ — $ (67,190) $ 50,410 Indefinite Trade names (amortizable) 69,250 (25,886) (23,232) 20,132 20 years Contractor license 6,000 — (6,000) — N/A Customer relationships 39,800 (23,155) (16,645) — N/A Construction contract backlog 149,290 (149,290) — — N/A Total $ 381,940 $ (198,331) $ (113,067) $ 70,542

Financial Commitments (Tables)

Financial Commitments (Tables)	3 Months Ended
	Mar. 31, 2023
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long-term debt as reported on the Condensed Consolidated Balance Sheets consisted of the following: (in thousands) As of March 31, As of December 31, 2017 Senior Notes $ 497,562 $ 497,289 Term Loan B 403,677 404,169 Revolver 30,000 — Equipment financing and mortgages 45,286 48,681 Other indebtedness 4,157 8,300 Total debt 980,682 958,439 Less: Current maturities 66,228 70,285 Long-term debt, net $ 914,454 $ 888,154
Schedule of Reconciliation of Outstanding Debt Balance to Reported Debt Balance	The following table reconciles the outstanding debt balances to the reported debt balances as of March 31, 2023 and December 31, 2022: As of March 31, 2023 As of December 31, 2022 (in thousands) Outstanding Debt Unamortized Discounts and Issuance Costs Debt, Outstanding Debt Unamortized Discounts and Issuance Costs Debt, 2017 Senior Notes $ 500,000 $ (2,438) $ 497,562 $ 500,000 $ (2,711) $ 497,289 Term Loan B 414,375 (10,698) 403,677 415,438 (11,269) 404,169
Schedule of Interest Expense as Reported in the Consolidated Statements of Operations	Interest expense as reported in the Condensed Consolidated Statements of Operations consisted of the following: Three Months Ended (in thousands) 2023 2022 Cash interest expense: Interest on 2017 Senior Notes $ 8,594 $ 8,594 Interest on Term Loan B 9,749 6,033 Interest on Revolver 1,745 503 Other interest 421 461 Total cash interest expense 20,509 15,591 Non-cash interest expense: (a) Amortization of discount and debt issuance costs on Term Loan B 571 505 Amortization of debt issuance costs on Revolver 160 142 Amortization of debt issuance costs on 2017 Senior Notes 273 254 Total non-cash interest expense 1,004 901 Total interest expense $ 21,513 $ 16,492 ____________________________________________________________________________________________________ (a) The combination of cash and non-cash interest expense produces effective interest rates that are higher than contractual rates. Accordingly, the effective interest rates for the 2017 Senior Notes and Term Loan B were 7.13% and 10.44% , respectively, for the three months ended March 31, 2023.

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2023
Leases [Abstract]
Schedule of Components of Lease Expense	The following table presents components of lease expense for the three months ended March 31, 2023 and 2022: Three Months Ended (in thousands) 2023 2022 Operating lease expense $ 3,474 $ 4,157 Short-term lease expense (a) 13,919 14,444 17,393 18,601 Less: Sublease income 194 190 Total lease expense $ 17,199 $ 18,411 ____________________________________________________________________________________________________ (a) Short-term lease expense includes all leases with lease terms of up to one year. Short-term leases include, among other things, construction equipment rented on an as-needed basis as well as temporary housing.
Schedule of Supplemental Financial Statement Information Related to Leases	The following table presents supplemental balance sheet information related to operating leases: (dollars in thousands) Balance Sheet Line Item As of March 31, As of December 31, Assets Right-of-use assets Other assets $ 49,147 $ 50,825 Total lease assets $ 49,147 $ 50,825 Liabilities Current lease liabilities Accrued expenses and other current liabilities $ 6,290 $ 6,709 Long-term lease liabilities Other long-term liabilities 48,006 49,176 Total lease liabilities $ 54,296 $ 55,885 Weighted-average remaining lease term 11.0 years 11.0 years Weighted-average discount rate 11.81 % 11.77 % The following table presents supplemental cash flow information and non-cash activity related to operating leases: Three Months Ended (in thousands) 2023 2022 Operating cash flow information: Cash paid for amounts included in the measurement of lease liabilities $ (3,446) $ (3,927) Non-cash activity: Right-of-use assets obtained in exchange for lease liabilities $ 318 $ 6,757
Schedule of Maturity of Operating Lease Liabilities on an Undiscounted Basis	The following table presents maturities of operating lease liabilities on an undiscounted basis as of March 31, 2023: Year (in thousands) Operating Leases 2023 (excluding the three months ended March 31, 2023) $ 9,198 2024 10,028 2025 8,910 2026 7,478 2027 6,770 Thereafter 58,094 Total lease payments 100,478 Less: Imputed interest 46,182 Total $ 54,296

Employee Pension Plans (Tables)

Employee Pension Plans (Tables)	3 Months Ended
	Mar. 31, 2023
Retirement Benefits [Abstract]
Schedule of Net Periodic Benefit Cost	The following table sets forth a summary of the net periodic benefit cost for the three months ended March 31, 2023 and 2022: Three Months Ended March 31, (in thousands) 2023 2022 Interest cost $ 969 $ 646 Service cost 255 240 Expected return on plan assets (978) (973) Recognized net actuarial losses 413 639 Net periodic benefit cost $ 659 $ 552

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis	The following fair value hierarchy table presents the Company’s assets that are measured at fair value on a recurring basis as of March 31, 2023 and December 31, 2022: As of March 31, 2023 As of December 31, 2022 Fair Value Hierarchy Fair Value Hierarchy (in thousands) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Cash and cash equivalents (a) $ 282,695 $ — $ — $ 282,695 $ 259,351 $ — $ — $ 259,351 Restricted cash (a) 19,946 — — 19,946 14,480 — — 14,480 Restricted investments (b) — 88,240 — 88,240 — 91,556 — 91,556 Investments in lieu of retention (c) 23,177 67,299 — 90,476 20,100 68,228 — 88,328 Total $ 325,818 $ 155,539 $ — $ 481,357 $ 293,931 $ 159,784 $ — $ 453,715 ____________________________________________________________________________________________________ (a) Includes money market funds and short-term investments with maturity dates of three months or less when acquired. (b) Restricted investments, as of March 31, 2023 and December 31, 2022, consist of available-for-sale (“AFS”) debt securities, which are valued based on pricing models determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets; therefore, they are classified as Level 2 assets. (c) Investments in lieu of retention are included in retention receivable as of March 31, 2023 and December 31, 2022, and are comprised of money market funds of $23.2 million and $20.1 million, respectively, and AFS debt securities of $67.3 million and $68.2 million, respectively. The fair values of the money market funds are measured using quoted market prices; therefore, they are classified as Level 1 assets. The fair values of AFS debt securities are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets; therefore, they are classified as Level 2 assets.
Schedule of Available-for-Sale Securities Reconciliation	Investments in AFS debt securities consisted of the following as of March 31, 2023 and December 31, 2022: As of March 31, 2023 As of December 31, 2022 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Fair Value Amortized Cost Unrealized Gains Unrealized Losses Fair Value Restricted investments: Corporate debt securities $ 52,027 $ 22 $ (3,045) $ 49,004 $ 53,452 $ 1 $ (3,550) $ 49,903 U.S. government agency securities 32,099 43 (1,379) 30,763 34,920 13 (1,688) 33,245 Municipal bonds 9,039 — (1,017) 8,022 9,211 — (1,257) 7,954 Corporate certificates of deposit 504 — (53) 451 507 — (53) 454 Total restricted investments 93,669 65 (5,494) 88,240 98,090 14 (6,548) 91,556 Investments in lieu of retention: Corporate debt securities 69,458 31 (3,219) 66,270 70,968 1 (3,724) 67,245 Municipal bonds 819 210 — 1,029 818 165 — 983 Total investments in lieu of retention 70,277 241 (3,219) 67,299 71,786 166 (3,724) 68,228 Total AFS debt securities $ 163,946 $ 306 $ (8,713) $ 155,539 $ 169,876 $ 180 $ (10,272) $ 159,784
Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value	The following table summarizes the fair value and gross unrealized losses aggregated by category and the length of time that individual securities have been in a continuous unrealized loss position as of March 31, 2023 and December 31, 2022: As of March 31, 2023 Less than 12 Months 12 Months or Greater Total (in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Restricted investments: Corporate debt securities $ 11,456 $ (204) $ 32,499 $ (2,841) $ 43,955 $ (3,045) U.S. government agency securities 13,782 (154) 14,194 (1,225) 27,976 (1,379) Municipal bonds 737 (23) 7,285 (994) 8,022 (1,017) Corporate certificates of deposit — — 451 (53) 451 (53) Total restricted investments 25,975 (381) 54,429 (5,113) 80,404 (5,494) Investments in lieu of retention: Corporate debt securities 13,065 (146) 46,350 (3,073) 59,415 (3,219) Total investments in lieu of retention 13,065 (146) 46,350 (3,073) 59,415 (3,219) Total AFS debt securities $ 39,040 $ (527) $ 100,779 $ (8,186) $ 139,819 $ (8,713) As of December 31, 2022 Less than 12 Months 12 Months or Greater Total (in thousands) Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Restricted investments: Corporate debt securities $ 23,559 $ (733) $ 25,842 $ (2,817) $ 49,401 $ (3,550) U.S. government agency securities 24,834 (939) 5,593 (749) 30,427 (1,688) Municipal bonds 4,998 (672) 2,956 (585) 7,954 (1,257) Corporate certificates of deposit 63 (12) 391 (41) 454 (53) Total restricted investments 53,454 (2,356) 34,782 (4,192) 88,236 (6,548) Investments in lieu of retention: Corporate debt securities 34,553 (843) 32,391 (2,881) 66,944 (3,724) Total investments in lieu of retention 34,553 (843) 32,391 (2,881) 66,944 (3,724) Total AFS debt securities $ 88,007 $ (3,199) $ 67,173 $ (7,073) $ 155,180 $ (10,272)
Schedule of Investments Classified by Contractual Maturity Date	The amortized cost and fair value of AFS debt securities by contractual maturity as of March 31, 2023 are summarized in the table below. Actual maturities may differ from contractual maturities because certain borrowers have the right to call or prepay certain obligations. (in thousands) Amortized Cost Fair Value Due within one year $ 25,973 $ 25,531 Due after one year through five years 127,355 120,639 Due after five years 10,618 9,369 Total $ 163,946 $ 155,539

Changes in Equity (Tables)

Changes in Equity (Tables)	3 Months Ended
	Mar. 31, 2023
Stockholders' Equity Note [Abstract]
Schedule of Stockholders Equity	A reconciliation of the changes in equity for the three months ended March 31, 2023 and 2022 is provided below: Three Months Ended March 31, 2023 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - December 31, 2022 $ 51,521 $ 1,140,933 $ 304,301 $ (47,037) $ (7,734) $ 1,441,984 Net income (loss) — — (49,196) — 267 (48,929) Other comprehensive income — — — 1,727 153 1,880 Share-based compensation — 1,395 — — — 1,395 Issuance of common stock, net 124 (247) — — — (123) Contributions from noncontrolling interests — — — — 2,000 2,000 Distributions to noncontrolling interests — — — — (8,500) (8,500) Balance - March 31, 2023 $ 51,645 $ 1,142,081 $ 255,105 $ (45,310) $ (13,814) $ 1,389,707 Three Months Ended March 31, 2022 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - December 31, 2021 $ 51,096 $ 1,133,150 $ 514,310 $ (43,635) $ 18,799 $ 1,673,720 Net income (loss) — — (21,634) — 2,821 (18,813) Other comprehensive loss — — — (3,110) (379) (3,489) Share-based compensation — 1,724 — — — 1,724 Issuance of common stock, net 104 (186) — — — (82) Contributions from noncontrolling interests — — — — 961 961 Distributions to noncontrolling interests — — — — (7,500) (7,500) Balance - March 31, 2022 $ 51,200 $ 1,134,688 $ 492,676 $ (46,745) $ 14,702 $ 1,646,521

Other Comprehensive Income (L_2

Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Components of Other Comprehensive Income (Loss) and Related Tax Effects	The components of other comprehensive income (loss) and the related tax effects for the three months ended March 31, 2023 and 2022 were as follows: Three Months Ended March 31, 2023 Three Months Ended March 31, 2022 (in thousands) Before-Tax Amount Tax Expense Net-of-Tax Amount Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Other comprehensive income (loss): Defined benefit pension plan adjustments $ 415 $ (114) $ 301 $ 639 $ (181) $ 458 Foreign currency translation adjustments 340 (90) 250 256 1 257 Unrealized gain (loss) in fair value of investments 1,685 (356) 1,329 (5,514) 1,310 (4,204) Total other comprehensive income (loss) 2,440 (560) 1,880 (4,619) 1,130 (3,489) Less: Other comprehensive income (loss) attributable to noncontrolling interests 153 — 153 (379) — (379) Total other comprehensive income (loss) attributable to Tutor Perini Corporation $ 2,287 $ (560) $ 1,727 $ (4,240) $ 1,130 $ (3,110)
Schedule of Changes in AOCI Balances by Component (After-Tax)	The changes in AOCI balances by component (after tax) attributable to Tutor Perini Corporation and attributable to noncontrolling interests during the three months ended March 31, 2023 and 2022 were as follows: Three Months Ended March 31, 2023 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of December 31, 2022 $ (32,637) $ (7,241) $ (7,159) $ (47,037) Other comprehensive income before reclassifications — 231 1,171 1,402 Amounts reclassified from AOCI 301 — 24 325 Total other comprehensive income 301 231 1,195 1,727 Balance as of March 31, 2023 $ (32,336) $ (7,010) $ (5,964) $ (45,310) Attributable to Noncontrolling Interests: Balance as of December 31, 2022 $ — $ (799) $ (931) $ (1,730) Other comprehensive income — 19 134 153 Balance as of March 31, 2023 $ — $ (780) $ (797) $ (1,577) Three Months Ended March 31, 2022 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of December 31, 2021 $ (37,866) $ (5,787) $ 18 $ (43,635) Other comprehensive loss before reclassifications — (9) (3,568) (3,577) Amounts reclassified from AOCI 458 — 9 467 Total other comprehensive income (loss) 458 (9) (3,559) (3,110) Balance as of March 31, 2022 $ (37,408) $ (5,796) $ (3,541) $ (46,745) Attributable to Noncontrolling Interests: Balance as of December 31, 2021 $ — $ 542 $ — $ 542 Total other comprehensive income (loss) — 266 (645) (379) Balance as of March 31, 2022 $ — $ 808 $ (645) $ 163 The significant items reclassified out of AOCI and the corresponding location and impact on the Condensed Consolidated Statements of Operations during the three months ended March 31, 2023 and 2022 were as follows: Three Months Ended (in thousands) 2023 2022 Component of AOCI: Defined benefit pension plan adjustments (a) $ 415 $ 639 Income tax benefit (b) (114) (181) Net of tax $ 301 $ 458 Unrealized loss in fair value of investment adjustments (a) $ 30 $ 11 Income tax benefit (b) (6) (2) Net of tax $ 24 $ 9 ___________________________________________________________________________________________________ (a) Amounts included in other income, net on the Condensed Consolidated Statements of Operations. (b) Amounts included in income tax benefit on the Condensed Consolidated Statements of Operations.

Business Segments (Tables)

Business Segments (Tables)	3 Months Ended
	Mar. 31, 2023
Segment Reporting [Abstract]
Schedule of Reportable Segments	The following tables set forth certain reportable segment information relating to the Company’s operations for the three months ended March 31, 2023 and 2022: Reportable Segments (in thousands) Civil Building Specialty Total Corporate Consolidated Three Months Ended March 31, 2023 Total revenue $ 378,224 $ 229,291 $ 196,748 $ 804,263 $ — $ 804,263 Elimination of intersegment revenue (28,354) 362 29 (27,963) — (27,963) Revenue from external customers $ 349,870 $ 229,653 $ 196,777 $ 776,300 $ — $ 776,300 Income (loss) from construction operations $ 18,012 $ (70,209) $ (12,448) $ (64,645) (a) $ (17,300) (b) $ (81,945) Capital expenditures $ 15,065 $ 2,017 $ 444 $ 17,526 $ 270 $ 17,796 Depreciation and amortization (c) $ 6,981 $ 457 $ 619 $ 8,057 $ 2,351 $ 10,408 Three Months Ended March 31, 2022 Total revenue $ 460,742 $ 355,978 $ 230,864 $ 1,047,584 $ — $ 1,047,584 Elimination of intersegment revenue (69,947) (25,330) (153) (95,430) — (95,430) Revenue from external customers $ 390,795 $ 330,648 $ 230,711 $ 952,154 $ — $ 952,154 Income (loss) from construction operations $ (967) $ 9,464 $ (3,894) $ 4,603 (d) $ (14,510) (b) $ (9,907) Capital expenditures $ 11,175 $ 2 $ 638 $ 11,815 $ 213 $ 12,028 Depreciation and amortization (c) $ 17,000 $ 401 $ 502 $ 17,903 $ 2,335 $ 20,238 ____________________________________________________________________________________________________ (a) During the three months ended March 31, 2023, the Company’s income (loss) from construction operations was negatively impacted by an adverse legal ruling on a completed mixed-use project in New York, which resulted in a non-cash, pre-tax charge of $83.6 million ($60.1 million, or $1.17 per diluted share, after-tax), of which $72.2 million impacted the Building segment and $11.4 million impacted the Specialty Contractors segment, as well as an unfavorable adjustment of $28.0 million ($22.2 million, or $0.43 per diluted share, after tax) for a Civil segment mass-transit project in California, which resulted from the successful negotiation of significant lower margin (and lower risk) change orders that increased the project’s overall estimated profit but reduced the project’s percentage of completion and overall margin percentage as of March 31, 2023. (b) Consists primarily of corporate general and administrative expenses. (c) Depreciation and amortization is included in income (loss) from construction operations. (d) During the three months ended March 31, 2022, the Company’s income (loss) from construction operations was negatively impacted by $25.5 million ($18.3 million, or $0.36 per diluted share, after tax) due to an adverse legal ruling on a dispute related to a completed Civil segment bridge project in New York and an adverse impact of $17.6 million ($13.9 million, or $0.27 per diluted share, after tax) for a Civil segment mass-transit project in California, which resulted from the successful negotiation of significant lower margin (and lower risk) change orders that increased the project’s overall estimated profit but reduced the project’s percentage of completion and overall margin percentage as of March 31, 2022.
Schedule of Reconciliation of Segment Results to Consolidated Income Before Income Taxes	A reconciliation of segment results to the consolidated loss before income taxes is as follows: Three Months Ended March 31, (in thousands) 2023 2022 Loss from construction operations $ (81,945) $ (9,907) Other income, net 6,417 3,697 Interest expense (21,513) (16,492) Loss before income taxes $ (97,041) $ (22,702)
Schedule of Total Assets for Reportable Segments	Total assets by segment were as follows: (in thousands) As of March 31, As of December 31, Civil $ 3,368,743 $ 3,402,934 Building 879,321 898,816 Specialty Contractors 385,806 483,535 Corporate and other (a) (157,092) (242,485) Total assets $ 4,476,778 $ 4,542,800 ____________________________________________________________________________________________________ (a) Consists principally of cash, equipment, tax-related assets and insurance-related assets, offset by the elimination of assets related to intersegment revenue.

Revenue (Disaggregation Of Reve

Revenue (Disaggregation Of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 776,300	$ 952,154
State and local agencies
Disaggregation of Revenue [Line Items]
Revenue	435,710	529,763
Federal agencies
Disaggregation of Revenue [Line Items]
Revenue	139,612	108,126
Private owners
Disaggregation of Revenue [Line Items]
Revenue	200,978	314,265
Civil
Disaggregation of Revenue [Line Items]
Revenue	349,870	390,795
Civil | State and local agencies
Disaggregation of Revenue [Line Items]
Revenue	213,427	313,842
Civil | Federal agencies
Disaggregation of Revenue [Line Items]
Revenue	95,984	50,694
Civil | Private owners
Disaggregation of Revenue [Line Items]
Revenue	40,459	26,259
Civil | Mass transit (includes certain transportation and tunneling projects)
Disaggregation of Revenue [Line Items]
Revenue	188,460	257,138
Civil | Military defense facilities
Disaggregation of Revenue [Line Items]
Revenue	85,567	49,794
Civil | Bridges
Disaggregation of Revenue [Line Items]
Revenue	30,645	41,247
Civil | Commercial and industrial sites
Disaggregation of Revenue [Line Items]
Revenue	22,504	11,910
Civil | Other
Disaggregation of Revenue [Line Items]
Revenue	22,694	30,706
Building
Disaggregation of Revenue [Line Items]
Revenue	229,653	330,648
Building | State and local agencies
Disaggregation of Revenue [Line Items]
Revenue	136,601	123,690
Building | Federal agencies
Disaggregation of Revenue [Line Items]
Revenue	41,735	46,098
Building | Private owners
Disaggregation of Revenue [Line Items]
Revenue	51,317	160,860
Building | Mass transit (includes certain transportation and tunneling projects)
Disaggregation of Revenue [Line Items]
Revenue	33,320	60,201
Building | Other
Disaggregation of Revenue [Line Items]
Revenue	(63,124)	8,296
Building | Municipal and government
Disaggregation of Revenue [Line Items]
Revenue	89,620	75,955
Building | Health care facilities
Disaggregation of Revenue [Line Items]
Revenue	50,417	35,560
Building | Education facilities
Disaggregation of Revenue [Line Items]
Revenue	48,077	29,860
Building | Commercial and industrial facilities
Disaggregation of Revenue [Line Items]
Revenue	38,271	39,086
Building | Hospitality and gaming
Disaggregation of Revenue [Line Items]
Revenue	19,606	76,918
Building | Sports and entertainment
Disaggregation of Revenue [Line Items]
Revenue	13,466	4,772
Specialty Contractors
Disaggregation of Revenue [Line Items]
Revenue	196,777	230,711
Specialty Contractors | State and local agencies
Disaggregation of Revenue [Line Items]
Revenue	85,682	92,231
Specialty Contractors | Federal agencies
Disaggregation of Revenue [Line Items]
Revenue	1,893	11,334
Specialty Contractors | Private owners
Disaggregation of Revenue [Line Items]
Revenue	109,202	127,146
Specialty Contractors | Mass transit (includes certain transportation and tunneling projects)
Disaggregation of Revenue [Line Items]
Revenue	47,545	119,027
Specialty Contractors | Other
Disaggregation of Revenue [Line Items]
Revenue	3,472	7,844
Specialty Contractors | Health care facilities
Disaggregation of Revenue [Line Items]
Revenue	9,531	8,574
Specialty Contractors | Education facilities
Disaggregation of Revenue [Line Items]
Revenue	8,253	12,276
Specialty Contractors | Commercial and industrial facilities
Disaggregation of Revenue [Line Items]
Revenue	54,227	29,857
Specialty Contractors | Multi-unit residential
Disaggregation of Revenue [Line Items]
Revenue	32,796	24,938
Specialty Contractors | Water
Disaggregation of Revenue [Line Items]
Revenue	28,334	21,447
Specialty Contractors | Federal government
Disaggregation of Revenue [Line Items]
Revenue	$ 12,619	$ 6,748

Revenue (Schedule Of Revenue By

Revenue (Schedule Of Revenue By Contract Type) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 776,300	$ 952,154
Fixed price
Disaggregation of Revenue [Line Items]
Revenue	573,644	638,574
Guaranteed maximum price
Disaggregation of Revenue [Line Items]
Revenue	71,596	177,135
Unit price
Disaggregation of Revenue [Line Items]
Revenue	57,076	65,365
Cost plus fee and other
Disaggregation of Revenue [Line Items]
Revenue	73,984	71,080
Civil
Disaggregation of Revenue [Line Items]
Revenue	349,870	390,795
Civil | Fixed price
Disaggregation of Revenue [Line Items]
Revenue	311,373	336,993
Civil | Guaranteed maximum price
Disaggregation of Revenue [Line Items]
Revenue	62	293
Civil | Unit price
Disaggregation of Revenue [Line Items]
Revenue	33,012	50,510
Civil | Cost plus fee and other
Disaggregation of Revenue [Line Items]
Revenue	5,423	2,999
Building
Disaggregation of Revenue [Line Items]
Revenue	229,653	330,648
Building | Fixed price
Disaggregation of Revenue [Line Items]
Revenue	96,116	102,518
Building | Guaranteed maximum price
Disaggregation of Revenue [Line Items]
Revenue	69,778	171,509
Building | Unit price
Disaggregation of Revenue [Line Items]
Revenue	0	33
Building | Cost plus fee and other
Disaggregation of Revenue [Line Items]
Revenue	63,759	56,588
Specialty Contractors
Disaggregation of Revenue [Line Items]
Revenue	196,777	230,711
Specialty Contractors | Fixed price
Disaggregation of Revenue [Line Items]
Revenue	166,155	199,063
Specialty Contractors | Guaranteed maximum price
Disaggregation of Revenue [Line Items]
Revenue	1,756	5,333
Specialty Contractors | Unit price
Disaggregation of Revenue [Line Items]
Revenue	24,064	14,822
Specialty Contractors | Cost plus fee and other
Disaggregation of Revenue [Line Items]
Revenue	$ 4,802	$ 11,493

Revenue (Narrative) (Details)

Revenue (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Net revenue recognized related to performance obligations satisfies (or partially satisfied) in prior periods	$ 108	$ 48.5
Civil
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue amount	$ 4,400	4,600
Civil | Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue period	3 years
Civil | Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue period	5 years
Building
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue amount	$ 2,200	2,200
Specialty Contractors
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue amount	$ 1,200	$ 1,300
Building and Specialty Contractors | Minimum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue period	1 year
Building and Specialty Contractors | Maximum
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue period	3 years

Contract Assets and Liabiliti_3

Contract Assets and Liabilities (Schedule Of Contract Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Retention receivable	$ 563,967	$ 585,556
Costs and estimated earnings in excess of billings:
Claims	599,460	677,367
Unapproved change orders	619,888	601,681
Other unbilled costs and profits	80,438	98,480
Total costs and estimated earnings in excess of billings	1,299,786	1,377,528
Capitalized contract costs	42,606	49,441
Total contract assets	$ 1,906,359	$ 2,012,525

Contract Assets and Liabiliti_4

Contract Assets and Liabilities (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Retainage receivable estimated by management to be collected beyond one year, percentage	55%
Costs and estimated earnings in excess of billings	$ 642.6
Capitalized contract costs amortized and recognized as expense	$ 10.8	$ 12.6
Retainage payable estimated by management to be remitted beyond one year, percentage	39%
Liability revenue recognized from contract with customer	$ 365.1	$ 317.8

Contract Assets and Liabiliti_5

Contract Assets and Liabilities (Schedule of Contract Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Retention payable	$ 245,972	$ 246,562
Billings in excess of costs and estimated earnings	978,505	975,812
Total contract liabilities	$ 1,224,477	$ 1,222,374

Cash, Cash Equivalents and Re_3

Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 282,695	$ 259,351
Restricted cash	19,946	14,480
Total cash, cash equivalents and restricted cash	302,641	273,831	$ 321,369	$ 211,396
Joint venture cash and cash equivalents
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	218,767	211,640
Cash and cash equivalents available for general corporate purposes
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 63,928	$ 47,711

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net loss attributable to Tutor Perini Corporation	$ (49,196)	$ (21,634)
Weighted-average common shares outstanding, basic (in shares)	51,551	51,107
Effect of dilutive RSUs and stock options (in shares)	0	0
Weighted-average common shares outstanding, diluted (in shares)	51,551	51,107
Net loss attributable to Tutor Perini Corporation per common share: Basic (in dollars per share)	$ (0.95)	$ (0.42)
Net loss attributable to Tutor Perini Corporation per common share: Diluted (in dollars per share)	$ (0.95)	$ (0.42)
Anti-dilutive securities not included above (in shares)	2,857	3,431

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income tax benefit	$ 48,112	$ 3,889
Effective tax rate	(49.60%)	(17.10%)
Deferred tax assets	$ 97,400		$ 15,900

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Goodwill [Line Items]
Gross goodwill as of December 31, 2022		$ 1,072,991
Accumulated impairment as of December 31, 2022		(867,848)
Goodwill [Roll Forward]
Balance at beginning of period	$ 205,143
Current year activity	0
Balance at end of period	205,143
Civil
Goodwill [Line Items]
Gross goodwill as of December 31, 2022		492,074
Accumulated impairment as of December 31, 2022		(286,931)
Goodwill [Roll Forward]
Balance at beginning of period	205,143
Current year activity	0
Balance at end of period	205,143
Building
Goodwill [Line Items]
Gross goodwill as of December 31, 2022		424,724
Accumulated impairment as of December 31, 2022		(424,724)
Goodwill [Roll Forward]
Balance at beginning of period	0
Current year activity	0
Balance at end of period	0
Specialty Contractors
Goodwill [Line Items]
Gross goodwill as of December 31, 2022		156,193
Accumulated impairment as of December 31, 2022		$ (156,193)
Goodwill [Roll Forward]
Balance at beginning of period	0
Current year activity	0
Balance at end of period	$ 0

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment charge		$ 0
Amortization expense	$ 559,000		$ 5,505,000
Estimated amortization expense, remainder of 2023	1,700,000
Estimated amortization expense, 2024	2,200,000
Estimated amortization expense, 2025	2,200,000
Estimated amortization expense, 2026	2,200,000
Estimated amortization expense, 2027	2,200,000
Estimated amortization expense, 2028	2,200,000
Estimated amortization expense, after year 2028	6,900,000
Impairment of intangible assets	$ 0		$ 0

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Total intangible assets
Cost	$ 381,940	$ 381,940
Accumulated Amortization	(198,890)	(198,331)
Accumulated Impairment Charge	(113,067)	(113,067)
Carrying Value	69,983	70,542
Trade Names
Finite-Lived intangible assets
Cost	69,250	69,250
Accumulated Amortization	(26,445)	(25,886)
Accumulated Impairment Charge	(23,232)	(23,232)
Carrying Value	$ 19,573	$ 20,132
Weighted-Average Amortization Period	20 years	20 years
Customer relationships
Finite-Lived intangible assets
Cost	$ 39,800	$ 39,800
Accumulated Amortization	(23,155)	(23,155)
Accumulated Impairment Charge	(16,645)	(16,645)
Carrying Value	0	0
Construction contract backlog
Finite-Lived intangible assets
Cost	149,290	149,290
Accumulated Amortization	(149,290)	(149,290)
Carrying Value	0	0
Trade Names
Indefinite-lived intangible assets
Cost	117,600	117,600
Accumulated Impairment Charge	(67,190)	(67,190)
Carrying Value	50,410	50,410
Contractor license
Indefinite-lived intangible assets
Cost	6,000	6,000
Accumulated Impairment Charge	(6,000)	(6,000)
Finite-Lived intangible assets
Carrying Value	$ 0	$ 0

Financial Commitments (Long-Ter

Financial Commitments (Long-Term Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt	$ 980,682	$ 958,439
Less: Current maturities	66,228	70,285
Long-term debt, net	914,454	888,154
Term Loan B
Debt Instrument [Line Items]
Total debt	403,677	404,169
Less: Current maturities	44,000	44,000
Equipment financing and mortgages
Debt Instrument [Line Items]
Total debt	45,286	48,681
Other indebtedness
Debt Instrument [Line Items]
Total debt	4,157	8,300
Revolving Credit Facility
Debt Instrument [Line Items]
Total debt	30,000	0
2017 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Total debt	$ 497,562	$ 497,289

Financial Commitments (Reconcil

Financial Commitments (Reconciliation of Outstanding Debt Balance to Reported Debt Balance) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total debt	$ 980,682	$ 958,439
Term Loan B
Debt Instrument [Line Items]
Outstanding Debt	414,375	415,438
Unamortized Discounts and Issuance Costs	(10,698)	(11,269)
Total debt	403,677	404,169
2017 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Outstanding Debt	500,000	500,000
Unamortized Discounts and Issuance Costs	(2,438)	(2,711)
Total debt	$ 497,562	$ 497,289

Financial Commitments (Narrativ

Financial Commitments (Narrative) (Details)

1 Months Ended

3 Months Ended

May 02, 2023

Aug. 18, 2020 USD ($)

Oct. 31, 2022

Mar. 31, 2023 USD ($)

Dec. 31, 2023

Sep. 30, 2023

Jun. 30, 2023

Apr. 01, 2023

Dec. 31, 2022 USD ($)

Sep. 30, 2022

Jan. 01, 2022

Apr. 20, 2017 USD ($)

Debt Instrument [Line Items]

Current maturities of long-term debt

$ 66,228,000

$ 70,285,000

Term Loan B

Debt Instrument [Line Items]

Current maturities of long-term debt

$ 44,000,000

44,000,000

BMO Harris Bank

Debt Instrument [Line Items]

Applicable margin on overdue amounts (as a percent)

2%

BMO Harris Bank | Unsecured Debt

Debt Instrument [Line Items]

Fixed charge coverage ratio (maximum)

2

2020 Credit Agreement | BMO Harris Bank | Federal Funds Rate

Debt Instrument [Line Items]

Basis spread on variable rate

0.50%

0.50%

2020 Credit Agreement | BMO Harris Bank | LIBOR

Debt Instrument [Line Items]

Basis spread on variable rate

1%

2020 Credit Agreement | BMO Harris Bank | Secured Overnight Financing Rate (SOFR)

Debt Instrument [Line Items]

Basis spread on variable rate

1%

Debt instrument, basis spread on variable rate adjustment

0.10%

2020 Credit Agreement | BMO Harris Bank | Secured Overnight Financing Rate (SOFR) | Forecast

Debt Instrument [Line Items]

Basis point spread, 1 month interest period

0.11448%

Basis point spread, 3 month interest period

0.26161%

Basis point spread, 6 month interest period

0.42826%

2020 Credit Agreement | BMO Harris Bank | Line of Credit

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 425,000,000

Periodic payment principal percentage

0.25%

Term Loan B | BMO Harris Bank | LIBOR | Minimum

Debt Instrument [Line Items]

Basis spread on variable rate

4.50%

Term Loan B | BMO Harris Bank | LIBOR | Maximum

Debt Instrument [Line Items]

Basis spread on variable rate

4.75%

Term Loan B | BMO Harris Bank | Base Rate | Minimum

Debt Instrument [Line Items]

Basis spread on variable rate

3.50%

Term Loan B | BMO Harris Bank | Base Rate | Maximum

Debt Instrument [Line Items]

Basis spread on variable rate

3.75%

First Lien | BMO Harris Bank

Debt Instrument [Line Items]

Net leverage ratio (maximum)

1.35

2017 Senior Notes | Senior Notes | Private Placement

Debt Instrument [Line Items]

Face amount

$ 500,000,000

Interest rate

6.875%

Redemption price, change of control triggering event (as a percent)

101%

Revolving Credit Facility

Debt Instrument [Line Items]

Unamortized debt issuance costs

$ 1,900,000

$ 1,600,000

Revolving Credit Facility | BMO Harris Bank

Debt Instrument [Line Items]

Weighted-average annual interest rate on borrowings

11.58%

Remaining borrowing capacity

$ 145,000,000

Revolving Credit Facility | BMO Harris Bank | Secured Overnight Financing Rate (SOFR) | Minimum

Debt Instrument [Line Items]

Basis spread on variable rate

4.25%

Revolving Credit Facility | BMO Harris Bank | Secured Overnight Financing Rate (SOFR) | Maximum

Debt Instrument [Line Items]

Basis spread on variable rate

4.75%

Revolving Credit Facility | BMO Harris Bank | Base Rate | Minimum

Debt Instrument [Line Items]

Basis spread on variable rate

3.25%

Revolving Credit Facility | BMO Harris Bank | Base Rate | Maximum

Debt Instrument [Line Items]

Basis spread on variable rate

3.75%

Revolving Credit Facility | BMO Harris Bank | Net Leverage Ratio

Debt Instrument [Line Items]

Net leverage ratio (maximum)

2.75

2.75

3.75

2.25

2.50

3

2.25

3.50

2.25

2.25

Revolving Credit Facility | 2020 Credit Agreement | BMO Harris Bank

Debt Instrument [Line Items]

Increase in line of credit

$ 173,500,000

Accordion feature, percentage of LTM EBITDA

50%

Revolving Credit Facility | 2020 Credit Agreement | BMO Harris Bank | Line of Credit

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 175,000,000

Letters of Credit | 2020 Credit Agreement | BMO Harris Bank | Line of Credit

Debt Instrument [Line Items]

Maximum borrowing capacity

75,000,000

Bridge Loan | 2020 Credit Agreement | BMO Harris Bank | Line of Credit

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 10,000,000

Secured Debt | BMO Harris Bank | Unsecured Debt | Junior Lien

Debt Instrument [Line Items]

Total net leverage ratio (maximum)

3.50

Financial Commitments (Summary

Financial Commitments (Summary of Interest Expense as Reported in the Consolidated Statements of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Debt Instrument [Line Items]
Other interest	$ 421	$ 461
Total cash interest expense	20,509	15,591
Total non-cash interest expense	1,004	901
Total interest expense	21,513	16,492
Term Loan B
Debt Instrument [Line Items]
Cash interest expense	9,749	6,033
Total non-cash interest expense	$ 571	505
Effective interest rates	10.44%
Revolving Credit Facility
Debt Instrument [Line Items]
Cash interest expense	$ 1,745	503
Total non-cash interest expense	160	142
2017 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Cash interest expense	8,594	8,594
Total non-cash interest expense	$ 273	$ 254
Effective interest rates	7.13%

Leases (Narrative) (Details)

Leases (Narrative) (Details)	Mar. 31, 2023
Minimum
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease terms	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease terms	15 years

Leases (Components Of Lease Exp

Leases (Components Of Lease Expense) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 3,474	$ 4,157
Short-term lease expense	13,919	14,444
Lease expense, gross	17,393	18,601
Less: Sublease income	194	190
Total lease expense	$ 17,199	$ 18,411
Maximum
Lessee, Lease, Description [Line Items]
Short term lease, lease term	1 year

Leases (Supplemental Balance Sh

Leases (Supplemental Balance Sheet Information Related To Leases) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
ASSETS
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	OTHER ASSETS	OTHER ASSETS
Right-of-use assets	$ 49,147	$ 50,825
Liabilities
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Current lease liabilities	$ 6,290	$ 6,709
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Long-term lease liabilities	$ 48,006	$ 49,176
Total lease liabilities	$ 54,296	$ 55,885
Weighted-average remaining lease term	11 years	11 years
Weighted-average discount rate	11.81%	11.77%

Leases (Supplemental Cash Flow

Leases (Supplemental Cash Flow And Other Information Related To Leases) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ (3,446)	$ (3,927)
Right-of-use assets obtained in exchange for lease liabilities	$ 318	$ 6,757

Leases (Maturity Of Leases Liab

Leases (Maturity Of Leases Liabilities On An Undiscounted Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Leases [Abstract]
2023 (excluding the three months ended March 31, 2023)	$ 9,198
2024	10,028
2025	8,910
2026	7,478
2027	6,770
Thereafter	58,094
Total lease payments	100,478
Less: Imputed interest	46,182
Total	$ 54,296	$ 55,885

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions

1 Months Ended

3 Months Ended

Oct. 18, 2022

Jan. 27, 2020

Dec. 13, 2019

Jun. 04, 2019

Feb. 26, 2015

Mar. 31, 2018

Mar. 31, 2016

Jun. 30, 2015

Aug. 31, 2013

Mar. 31, 2023

Dec. 31, 2019

Jul. 02, 2018

Alaskan Way Viaduct Matter

Contingencies and Commitments

Ownership percentage in joint venture

45%

Value of claim filed

$ 57.2

$ 532

Settlement on judgment, awarded to other party

$ 57.2

Pre-tax charge, impact from jury verdict

$ 166.8

Pre-tax accrual, impact from jury verdict

25.7

Settlement on judgment

$ 57.2

Loss contingency, damages paid, value

$ 34.6

George Washington Bridge Bus Station Matter

Contingencies and Commitments

Value of claim filed

$ 113

$ 30

Value of project

$ 100

Court issued writ of attachment amount

$ 23

Proof of claim amount

$ 113

Pre-tax charge to income (loss) from construction operations

$ 83.6

Value of damages seeking

$ 113

George Washington Bridge Bus Station Matter | Tutor Perini Building Corp

Contingencies and Commitments

Value of claim filed

$ 113

George Washington Bridge Bus Station Matter | George Washington Bridge Bus Station Development Venture, LLC

Contingencies and Commitments

Value of claim filed

4.8

Value of counterclaim filed in excess of

29

George Washington Bridge Bus Station Matter | Return Of Retainage By Developer

Contingencies and Commitments

Value of counterclaim filed in excess of

$ 29

Share-Based Compensation (Detai

Share-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares)	868,622
Costs for share-based payment arrangements	$ 3.1	$ 3.4
Unamortized share-based compensation expense	$ 25.3
Weighted average period over which unrecognized compensation cost is expected to be recognized	2 years 3 months 18 days
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	590,188	375,769
Weighted-average fair values per share (in dollars per share)	$ 8.66	$ 10.53
Cash-settled Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	901,541	315,768
Weighted-average fair values per share (in dollars per share)	$ 13.78	$ 14.89
Cash-settled Service-Based Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	90,000
Weighted-average fair values per share (in dollars per share)	$ 8.98
Unrestricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)		7,500
Weighted-average fair values per share (in dollars per share)		$ 19.24
Restricted Stock Units, Guaranteed Minimum Payouts
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liabilities recognized for restricted stock grants	$ 3.4		$ 2.1
Cash used to settle liabilities		$ 2.6

Employee Pension Plans (Summary

Employee Pension Plans (Summary Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Summary of net periodic benefit cost
Interest cost	$ 969	$ 646
Service cost	255	240
Expected return on plan assets	(978)	(973)
Recognized net actuarial losses	413	639
Net periodic benefit cost	$ 659	$ 552

Employee Pension Plans (Narrati

Employee Pension Plans (Narrative) (Details) $ in Millions	Mar. 31, 2023 USD ($)
Pension Plan Assets
Expected future employer contribution, current year	$ 1.3

Fair Value Measurements (Assets

Fair Value Measurements (Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Assets:
Cash and cash equivalents maturity period (maximum)	3 months
Fair value measured on a recurring basis
Assets:
Cash and cash equivalents	$ 282,695	$ 259,351
Restricted cash	19,946	14,480
Restricted investments	88,240	91,556
Investments in lieu of retainage	90,476	88,328
Total	481,357	453,715
Fair value measured on a recurring basis | Level 1
Assets:
Cash and cash equivalents	282,695	259,351
Restricted cash	19,946	14,480
Restricted investments	0	0
Investments in lieu of retainage	23,177	20,100
Total	325,818	293,931
Fair value measured on a recurring basis | Level 2
Assets:
Cash and cash equivalents	0	0
Restricted cash	0	0
Restricted investments	88,240	91,556
Investments in lieu of retainage	67,299	68,228
Total	155,539	159,784
Fair value measured on a recurring basis | Level 3
Assets:
Cash and cash equivalents	0	0
Restricted cash	0	0
Restricted investments	0	0
Investments in lieu of retainage	0	0
Total	0	0
Money Market Funds | Fair value measured on a recurring basis | Level 1
Assets:
Investments in lieu of retainage	23,200	20,100
Debt Securities | Fair value measured on a recurring basis | Level 1
Assets:
Investments in lieu of retainage	$ 67,300	$ 68,200

Fair Value Measurements (Availa

Fair Value Measurements (Available for Sale) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	$ 163,946	$ 169,876
Unrealized Gains	306	180
Unrealized Losses	(8,713)	(10,272)
Fair Value	155,539	159,784
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	39,040	88,007
Less than 12 Months, Unrealized Losses	(527)	(3,199)
12 Months or Greater, Fair Value	100,779	67,173
12 Months or Greater, Unrealized Losses	(8,186)	(7,073)
Total, Fair Value	139,819	155,180
Total, Unrealized Losses	(8,713)	(10,272)
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Amortized Cost, Due within one year	25,973
Fair Value, Due within one year	25,531
Amortized Cost, Due after one year through five years	127,355
Fair Value, Due after one year through five years	120,639
Amortized Cost, Due after five years	10,618
Fair Value, Due after five years	9,369
Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	93,669	98,090
Unrealized Gains	65	14
Unrealized Losses	(5,494)	(6,548)
Fair Value	88,240	91,556
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	25,975	53,454
Less than 12 Months, Unrealized Losses	(381)	(2,356)
12 Months or Greater, Fair Value	54,429	34,782
12 Months or Greater, Unrealized Losses	(5,113)	(4,192)
Total, Fair Value	80,404	88,236
Total, Unrealized Losses	(5,494)	(6,548)
Investments in lieu of retention:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	70,277	71,786
Unrealized Gains	241	166
Unrealized Losses	(3,219)	(3,724)
Fair Value	67,299	68,228
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	13,065	34,553
Less than 12 Months, Unrealized Losses	(146)	(843)
12 Months or Greater, Fair Value	46,350	32,391
12 Months or Greater, Unrealized Losses	(3,073)	(2,881)
Total, Fair Value	59,415	66,944
Total, Unrealized Losses	(3,219)	(3,724)
Corporate debt securities | Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	52,027	53,452
Unrealized Gains	22	1
Unrealized Losses	(3,045)	(3,550)
Fair Value	49,004	49,903
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	11,456	23,559
Less than 12 Months, Unrealized Losses	(204)	(733)
12 Months or Greater, Fair Value	32,499	25,842
12 Months or Greater, Unrealized Losses	(2,841)	(2,817)
Total, Fair Value	43,955	49,401
Total, Unrealized Losses	(3,045)	(3,550)
Corporate debt securities | Investments in lieu of retention:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	69,458	70,968
Unrealized Gains	31	1
Unrealized Losses	(3,219)	(3,724)
Fair Value	66,270	67,245
U.S. government agency securities | Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	32,099	34,920
Unrealized Gains	43	13
Unrealized Losses	(1,379)	(1,688)
Fair Value	30,763	33,245
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	13,782	24,834
Less than 12 Months, Unrealized Losses	(154)	(939)
12 Months or Greater, Fair Value	14,194	5,593
12 Months or Greater, Unrealized Losses	(1,225)	(749)
Total, Fair Value	27,976	30,427
Total, Unrealized Losses	(1,379)	(1,688)
Municipal bonds | Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	9,039	9,211
Unrealized Gains	0	0
Unrealized Losses	(1,017)	(1,257)
Fair Value	8,022	7,954
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	737	4,998
Less than 12 Months, Unrealized Losses	(23)	(672)
12 Months or Greater, Fair Value	7,285	2,956
12 Months or Greater, Unrealized Losses	(994)	(585)
Total, Fair Value	8,022	7,954
Total, Unrealized Losses	(1,017)	(1,257)
Municipal bonds | Investments in lieu of retention:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	819	818
Unrealized Gains	210	165
Unrealized Losses	0	0
Fair Value	1,029	983
Corporate certificates of deposit | Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	504	507
Unrealized Gains	0	0
Unrealized Losses	(53)	(53)
Fair Value	451	454
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	0	63
Less than 12 Months, Unrealized Losses	0	(12)
12 Months or Greater, Fair Value	451	391
12 Months or Greater, Unrealized Losses	(53)	(41)
Total, Fair Value	451	454
Total, Unrealized Losses	$ (53)	$ (53)

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Senior Notes | 2017 Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 352.5	$ 439.7
Term Loan B
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 385.4	$ 389.5

Variable Interest Entities (V_2

Variable Interest Entities (VIEs) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Variable Interest Entity [Line Items]
Assets, current	$ 3,527,547		$ 3,678,771
Liabilities, current	1,934,247		1,967,527
Revenue	$ 776,300	$ 952,154
Purple Line Extension Section 2 And Section 3
Variable Interest Entity [Line Items]
Percent interest in the joint venture	75%
Newark Airport Terminal One Design Build Project
Variable Interest Entity [Line Items]
Percent interest in the joint venture	80%
Joint Venture With O&G Industries | Purple Line Extension Section 2 And Section 3
Variable Interest Entity [Line Items]
Revenue	$ 2,800,000
O&G | Purple Line Extension Section 2 And Section 3
Variable Interest Entity [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners	25%
Joint Venture With Parsons | Newark Airport Terminal One Design Build Project
Variable Interest Entity [Line Items]
Revenue	$ 1,400,000
Parsons Corporation | Newark Airport Terminal One Design Build Project
Variable Interest Entity [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners	20%
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Assets, current	$ 600		400
Liabilities, current	200
VIEs
Variable Interest Entity [Line Items]
Assets, current	506,400		527,300
Liabilities, current	552,400		567,300
Assets, noncurrent	$ 28,900		$ 22,400

Changes in Equity (Details)

Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	$ 1,441,984	$ 1,673,720
Net income (loss)	(48,929)	(18,813)
Other comprehensive income (loss)	1,880	(3,489)
Share-based compensation	1,395	1,724
Issuance of common stock, net	(123)	(82)
Contributions from noncontrolling interests	2,000	961
Distributions to noncontrolling interests	(8,500)	(7,500)
Balance at the end of the period	1,389,707	1,646,521
Common Stock
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	51,521	51,096
Issuance of common stock, net	124	104
Balance at the end of the period	51,645	51,200
Additional Paid-in Capital
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	1,140,933	1,133,150
Share-based compensation	1,395	1,724
Issuance of common stock, net	(247)	(186)
Balance at the end of the period	1,142,081	1,134,688
Retained Earnings
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	304,301	514,310
Net income (loss)	(49,196)	(21,634)
Balance at the end of the period	255,105	492,676
Accumulated Other Comprehensive Loss
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(47,037)	(43,635)
Other comprehensive income (loss)	1,727	(3,110)
Balance at the end of the period	(45,310)	(46,745)
Noncontrolling Interests
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(7,734)	18,799
Net income (loss)	267	2,821
Other comprehensive income (loss)	153	(379)
Contributions from noncontrolling interests	2,000	961
Distributions to noncontrolling interests	(8,500)	(7,500)
Balance at the end of the period	$ (13,814)	$ 14,702

Other Comprehensive Income (L_3

Other Comprehensive Income (Loss) (Schedule Of Components Of Other Comprehensive Income (Loss) And Related Tax Effects) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	$ 2,440	$ (4,619)
Total other comprehensive income (loss), Tax (Expense) Benefit	(560)	1,130
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	1,880	(3,489)
Defined benefit pension plan adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	415	639
Total other comprehensive income (loss), Tax (Expense) Benefit	(114)	(181)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	301	458
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	340	256
Total other comprehensive income (loss), Tax (Expense) Benefit	(90)	1
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	250	257
Unrealized gain (loss) in fair value of investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	1,685	(5,514)
Total other comprehensive income (loss), Tax (Expense) Benefit	(356)	1,310
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	1,329	(4,204)
Less: Other comprehensive income (loss) attributable to noncontrolling interests
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	153	(379)
Total other comprehensive income (loss), Tax (Expense) Benefit	0	0
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	153	(379)
Total other comprehensive income (loss) attributable to Tutor Perini Corporation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), Before-Tax Amount	2,287	(4,240)
Total other comprehensive income (loss), Tax (Expense) Benefit	(560)	1,130
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	$ 1,727	$ (3,110)

Other Comprehensive Income (L_4

Other Comprehensive Income (Loss) (Schedule Of Changes In AOCI Balances By Component (After-Tax)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 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	1,402	$ (3,577)
Amounts reclassified from AOCI	325	467
Total other comprehensive income (loss)	1,727	(3,110)
Other comprehensive income (loss)	153	(379)
Balance at the end of the period, noncontrolling interests	(13,814)
Balance at the end of the period	1,403,521
Defined Benefit Pension Plan
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(32,637)	(37,866)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from AOCI	301	458
Total other comprehensive income (loss)	301	458
Balance at the end of the period	(32,336)	(37,408)
Foreign Currency Translation
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(7,241)	(5,787)
Other comprehensive income (loss) before reclassifications	231	(9)
Amounts reclassified from AOCI	0	0
Total other comprehensive income (loss)	231	(9)
Balance at the end of the period	(7,010)	(5,796)
Unrealized Gain (Loss) in Fair Value of Investments, Net
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(7,159)	18
Other comprehensive income (loss) before reclassifications	1,171	(3,568)
Amounts reclassified from AOCI	24	9
Total other comprehensive income (loss)	1,195	(3,559)
Balance at the end of the period	(5,964)	(3,541)
Accumulated Other Comprehensive Income (Loss)
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(47,037)	(43,635)
Balance at the end of the period	(45,310)	(46,745)
AOCI Attributable to Noncontrolling Interest
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period, noncontrolling interests	(1,730)	542
Balance at the end of the period, noncontrolling interests	(1,577)	163
Defined Benefit Pension Plan
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period, noncontrolling interests	0	0
Other comprehensive income (loss)	0	0
Balance at the end of the period, noncontrolling interests	0	0
Foreign Currency Translation
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period, noncontrolling interests	(799)	542
Other comprehensive income (loss)	19	266
Balance at the end of the period, noncontrolling interests	(780)	808
Unrealized Gain (Loss) in Fair Value of Investments, Net
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period, noncontrolling interests	(931)	0
Other comprehensive income (loss)	134	(645)
Balance at the end of the period, noncontrolling interests	$ (797)	$ (645)

Other Comprehensive Income (L_5

Other Comprehensive Income (Loss) (AOCI Reclassifications) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Defined benefit pension plan adjustments/Unrealized (gain) loss in fair value of investment adjustments	$ (6,417)	$ (3,697)
Income tax expense (benefit)	(48,112)	(3,889)
Net of tax	49,196	21,634
Defined Benefit Pension Plan | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Defined benefit pension plan adjustments/Unrealized (gain) loss in fair value of investment adjustments	415	639
Income tax expense (benefit)	(114)	(181)
Net of tax	301	458
Unrealized (gain) loss in fair value of investment adjustments | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Defined benefit pension plan adjustments/Unrealized (gain) loss in fair value of investment adjustments	30	11
Income tax expense (benefit)	(6)	(2)
Net of tax	$ 24	$ 9

Business Segments (Narrative) (

Business Segments (Narrative) (Details)	3 Months Ended
	Mar. 31, 2023 segment
Segment Reporting [Abstract]
Number of reportable segments	3
Revenue Benchmark | Customer Concentration Risk | Civil, Building, And Specialty Contractors
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	19.50%

Business Segments (Reportable S

Business Segments (Reportable Segments) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Revenue	$ 776,300	$ 952,154
Income (loss) from construction operations	(81,945)	(9,907)
Capital expenditures	17,796	12,028
Depreciation and amortization	10,408	20,238
Adverse Legal Ruling Pertaining to Transit Project in New York
Segment Reporting Information [Line Items]
Loss contingency	83,600
Loss contingency, after tax	$ 60,100
Loss contingency, after tax, diluted (in dollars per share)	$ 1.17
Operating Segments
Segment Reporting Information [Line Items]
Revenue	$ 804,263	1,047,584
Income (loss) from construction operations	(64,645)	4,603
Capital expenditures	17,526	11,815
Depreciation and amortization	8,057	17,903
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	(27,963)	(95,430)
Corporate
Segment Reporting Information [Line Items]
Revenue	0	0
Income (loss) from construction operations	(17,300)	(14,510)
Capital expenditures	270	213
Depreciation and amortization	2,351	2,335
Civil
Segment Reporting Information [Line Items]
Revenue	349,870	390,795
Civil | Unfavorable Legal Ruling Pertaining to Mass-Transit Project in California
Segment Reporting Information [Line Items]
Loss contingency	28,000	17,600
Loss contingency, after tax	$ 22,200	$ 13,900
Loss contingency, after tax, diluted (in dollars per share)	$ 0.43	$ 0.27
Civil | Adverse Legal Ruling Pertaining to Bridge Project in New York
Segment Reporting Information [Line Items]
Loss contingency		$ 25,500
Loss contingency, after tax		$ 18,300
Loss contingency, after tax, diluted (in dollars per share)		$ 0.36
Civil | Operating Segments
Segment Reporting Information [Line Items]
Revenue	$ 378,224	$ 460,742
Income (loss) from construction operations	18,012	(967)
Capital expenditures	15,065	11,175
Depreciation and amortization	6,981	17,000
Civil | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	(28,354)	(69,947)
Building
Segment Reporting Information [Line Items]
Revenue	229,653	330,648
Building | Adverse Legal Ruling Pertaining to Transit Project in New York
Segment Reporting Information [Line Items]
Loss contingency	72,200
Building | Operating Segments
Segment Reporting Information [Line Items]
Revenue	229,291	355,978
Income (loss) from construction operations	(70,209)	9,464
Capital expenditures	2,017	2
Depreciation and amortization	457	401
Building | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	362	(25,330)
Specialty Contractors
Segment Reporting Information [Line Items]
Revenue	196,777	230,711
Specialty Contractors | Adverse Legal Ruling Pertaining to Transit Project in New York
Segment Reporting Information [Line Items]
Loss contingency	11,400
Specialty Contractors | Operating Segments
Segment Reporting Information [Line Items]
Revenue	196,748	230,864
Income (loss) from construction operations	(12,448)	(3,894)
Capital expenditures	444	638
Depreciation and amortization	619	502
Specialty Contractors | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	$ 29	$ (153)

Business Segments (Reconciliati

Business Segments (Reconciliation Of Segment Results To Consolidated Loss Before Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting [Abstract]
Loss from construction operations	$ (81,945)	$ (9,907)
Other income, net	6,417	3,697
Interest expense	(21,513)	(16,492)
LOSS BEFORE INCOME TAXES	$ (97,041)	$ (22,702)

Business Segments (Total Assets

Business Segments (Total Assets For Reportable Segments) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total assets	$ 4,476,778	$ 4,542,800
Corporate and other
Segment Reporting Information [Line Items]
Total assets	(157,092)	(242,485)
Civil | Operating Segments
Segment Reporting Information [Line Items]
Total assets	3,368,743	3,402,934
Building | Operating Segments
Segment Reporting Information [Line Items]
Total assets	879,321	898,816
Specialty Contractors | Operating Segments
Segment Reporting Information [Line Items]
Total assets	$ 385,806	$ 483,535