Tutor Perini (TPC) 10-Q 5 Aug 22 2022 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2022	Jul. 28, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
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 (in shares)		51,357,691
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000077543
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
REVENUE	$ 861,027	$ 1,219,243	$ 1,813,181	$ 2,426,838
COST OF OPERATIONS	(895,250)	(1,091,754)	(1,797,059)	(2,188,894)
GROSS PROFIT (LOSS)	(34,223)	127,489	16,122	237,944
General and administrative expenses	(56,331)	(58,736)	(116,583)	(119,487)
INCOME (LOSS) FROM CONSTRUCTION OPERATIONS	(90,554)	68,753	(100,461)	118,457
Other income, net	1,020	1,431	4,717	1,606
Interest expense	(16,204)	(17,938)	(32,696)	(35,748)
INCOME (LOSS) BEFORE INCOME TAXES	(105,738)	52,246	(128,440)	84,315
Income tax (expense) benefit	43,718	(10,635)	47,607	(17,599)
NET INCOME (LOSS)	(62,020)	41,611	(80,833)	66,716
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	983	10,446	3,804	19,517
NET INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (63,003)	$ 31,165	$ (84,637)	$ 47,199
BASIC EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	$ (1.23)	$ 0.61	$ (1.65)	$ 0.93
DILUTED EARNINGS (LOSS) PER COMMON SHARE (in dollars per share)	$ (1.23)	$ 0.61	$ (1.65)	$ 0.92
WEIGHTED-AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	51,276	50,999	51,192	50,956
DILUTED (in shares)	51,276	51,375	51,192	51,362

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)	$ (62,020)	$ 41,611	$ (80,833)	$ 66,716
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Defined benefit pension plan adjustments	457	491	915	983
Foreign currency translation adjustments	(1,390)	400	(1,133)	772
Unrealized gain (loss) in fair value of investments	(2,058)	219	(6,262)	(964)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(2,991)	1,110	(6,480)	791
COMPREHENSIVE INCOME (LOSS)	(65,011)	42,721	(87,313)	67,507
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	210	10,726	2,652	20,093
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO TUTOR PERINI CORPORATION	$ (65,221)	$ 31,995	$ (89,965)	$ 47,414

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents ($169,266 and $102,679 related to variable interest entities (“VIEs”))	$ 309,267	$ 202,197
Restricted cash	4,485	9,199
Restricted investments	84,498	84,355
Accounts receivable ($99,872 and $116,415 related to VIEs)	1,337,017	1,454,319
Retention receivable ($178,575 and $162,259 related to VIEs)	552,695	568,881
Costs and estimated earnings in excess of billings ($67,874 and $143,105 related to VIEs)	1,372,640	1,356,768
Other current assets ($42,844 and $43,718 related to VIEs)	207,881	186,773
Total current assets	3,868,483	3,862,492
PROPERTY AND EQUIPMENT (“P&E”), net of accumulated depreciation of $507,400 and $483,417 (net P&E of $13,905 and $2,203 related to VIEs)	427,894	429,645
GOODWILL	205,143	205,143
INTANGIBLE ASSETS, NET	74,891	85,068
OTHER ASSETS	143,272	142,550
TOTAL ASSETS	4,719,683	4,724,898
CURRENT LIABILITIES:
Current maturities of long-term debt	30,565	24,406
Accounts payable ($66,971 and $96,097 related to VIEs)	555,365	512,056
Retention payable ($39,580 and $37,007 related to VIEs)	227,725	268,945
Billings in excess of costs and estimated earnings ($458,713 and $355,270 related to VIEs)	956,735	761,689
Accrued expenses and other current liabilities ($10,880 and $8,566 related to VIEs)	192,931	210,017
Total current liabilities	1,963,321	1,777,113
LONG-TERM DEBT, less current maturities, net of unamortized discount and debt issuance costs totaling $15,575 and $17,109	937,743	969,248
DEFERRED INCOME TAXES	6,836	70,989
OTHER LONG-TERM LIABILITIES	243,837	233,828
TOTAL LIABILITIES	3,151,737	3,051,178
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 51,357,691 and 51,095,706 shares	51,358	51,096
Additional paid-in capital	1,137,966	1,133,150
Retained earnings	429,673	514,310
Accumulated other comprehensive loss	(48,963)	(43,635)
Total stockholders' equity	1,570,034	1,654,921
Noncontrolling interests	(2,088)	18,799
TOTAL EQUITY	1,567,946	1,673,720
TOTAL LIABILITIES AND EQUITY	$ 4,719,683	$ 4,724,898

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Cash and cash equivalents	$ 309,267	$ 202,197
Accounts receivable	1,337,017	1,454,319
Retention receivable	552,695	568,881
Costs and estimated earnings in excess of billings	1,372,640	1,356,768
Other current assets	207,881	186,773
Accumulated depreciation	507,400	483,417
Property and equipment, net	427,894	429,645
Accounts payable	555,365	512,056
Retainage payable	227,725	268,945
Billings in excess of costs and estimated earnings	956,735	761,689
Accrued expenses and other current liabilities	192,931	210,017
Unamortized discount and debt issuance costs, non-current	$ 15,575	$ 17,109
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)	51,357,691	51,095,706
Common stock, shares outstanding (in shares)	51,357,691	51,095,706
VIEs
Cash and cash equivalents	$ 169,266	$ 102,679
Accounts receivable	99,872	116,415
Retention receivable	178,575	162,259
Costs and estimated earnings in excess of billings	67,874	143,105
Other current assets	42,844	43,718
Property and equipment, net	13,905	2,203
Accounts payable	66,971	96,097
Retainage payable	39,580	37,007
Billings in excess of costs and estimated earnings	458,713	355,270
Accrued expenses and other current liabilities	$ 10,880	$ 8,566

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash Flows from Operating Activities:
Net income (loss)	$ (80,833)	$ 66,716
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	28,344	44,821
Amortization of intangible assets	10,177	17,314
Share-based compensation expense	4,814	5,033
Change in debt discounts and deferred debt issuance costs	1,817	3,868
Deferred income taxes	(61,145)	2,213
(Gain) loss on sale of property and equipment	(168)	360
Changes in other components of working capital	269,104	(278,943)
Other long-term liabilities	7,885	6,801
Other, net	(1,297)	515
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	178,698	(131,302)
Cash Flows from Investing Activities:
Acquisition of property and equipment	(28,845)	(18,860)
Proceeds from sale of property and equipment	6,420	3,623
Investments in securities	(10,409)	(18,096)
Proceeds from maturities and sales of investments in securities	4,919	10,497
NET CASH USED IN INVESTING ACTIVITIES	(27,915)	(22,836)
Cash Flows from Financing Activities:
Proceeds from debt	412,357	308,181
Repayment of debt	(439,236)	(367,007)
Cash payments related to share-based compensation	(1,009)	(1,625)
Distributions paid to noncontrolling interests	(24,500)	(7,250)
Contributions from noncontrolling interests	3,961	4,000
NET CASH USED IN FINANCING ACTIVITIES	(48,427)	(63,701)
Net increase (decrease) in cash, cash equivalents and restricted cash	102,356	(217,839)
Cash, cash equivalents and restricted cash at beginning of period	211,396	451,852
Cash, cash equivalents and restricted cash at end of period	$ 313,752	$ 234,013

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2022
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, 2021. The results of operations for the three and six months ended June 30, 2022 may not be indicative of the results that will be achieved for the full year ending December 31, 2022. 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 June 30, 2022 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	6 Months Ended
	Jun. 30, 2022
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 and six months ended June 30, 2022 and 2021. Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Civil segment revenue by end market: Mass transit (includes certain transportation and tunneling projects) $ 225,574 $ 366,534 $ 482,712 $ 675,409 Bridges 85,073 65,775 126,320 111,942 Military defense facilities 60,355 44,585 110,149 94,121 Water 22,384 24,800 43,036 51,610 Other 10,236 53,658 32,200 97,845 Total Civil segment revenue $ 403,622 $ 555,352 $ 794,417 $ 1,030,927 Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Building segment revenue by end market: Municipal and government $ 83,826 $ 74,475 $ 159,781 $ 146,384 Hospitality and gaming 24,077 86,145 100,995 186,712 Commercial and industrial facilities 49,309 101,960 88,395 232,012 Health care facilities 50,277 13,598 85,837 24,007 Mass transit (includes transportation projects) 10,447 34,344 70,648 60,879 Education facilities 31,176 46,143 61,036 84,460 Other 17,829 25,995 30,897 55,439 Total Building segment revenue $ 266,941 $ 382,660 $ 597,589 $ 789,893 Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Specialty Contractors segment revenue by end market: Mass transit (includes certain transportation and tunneling projects) $ 75,395 $ 148,045 $ 194,422 $ 329,208 Commercial and industrial facilities 36,444 36,637 66,301 75,386 Multi-unit residential 28,243 30,649 53,181 73,444 Water 13,972 17,514 35,419 38,668 Federal government 14,106 455 20,855 4,502 Education facilities 8,165 18,425 20,441 31,781 Other 14,139 29,506 30,556 53,029 Total Specialty Contractors segment revenue $ 190,464 $ 281,231 $ 421,175 $ 606,018 Three Months Ended Three Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by customer type: State and local agencies $ 319,411 $ 89,473 $ 91,817 $ 500,701 $ 481,333 $ 92,275 $ 124,080 $ 697,688 Federal agencies 62,991 42,402 3,186 108,579 49,335 49,287 5,704 104,326 Private owners 21,220 135,066 95,461 251,747 24,684 241,098 151,447 417,229 Total revenue $ 403,622 $ 266,941 $ 190,464 $ 861,027 $ 555,352 $ 382,660 $ 281,231 $ 1,219,243 Six Months Ended Six Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by customer type: State and local agencies $ 633,253 $ 213,163 $ 184,048 $ 1,030,464 $ 871,835 $ 168,856 $ 267,004 $ 1,307,695 Federal agencies 113,685 88,500 14,520 216,705 100,968 99,648 26,941 227,557 Private owners 47,479 295,926 222,607 566,012 58,124 521,389 312,073 891,586 Total revenue $ 794,417 $ 597,589 $ 421,175 $ 1,813,181 $ 1,030,927 $ 789,893 $ 606,018 $ 2,426,838 Three Months Ended Three Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by contract type: Fixed price $ 337,414 $ 64,296 $ 158,036 $ 559,746 $ 461,068 $ 95,349 $ 246,290 $ 802,707 Guaranteed maximum price 301 145,954 3,361 149,616 498 247,402 2,563 250,463 Unit price 72,210 — 22,064 94,274 88,516 (1,564) 28,703 115,655 Cost plus fee and other (6,303) 56,691 7,003 57,391 5,270 41,473 3,675 50,418 Total revenue $ 403,622 $ 266,941 $ 190,464 $ 861,027 $ 555,352 $ 382,660 $ 281,231 $ 1,219,243 Six Months Ended Six Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by contract type: Fixed price $ 674,407 $ 166,814 $ 357,099 $ 1,198,320 $ 880,224 $ 179,798 $ 539,758 $ 1,599,780 Guaranteed maximum price 594 317,463 8,694 326,751 1,768 517,856 3,693 523,317 Unit price 122,720 33 36,886 159,639 141,249 (1,453) 57,000 196,796 Cost plus fee and other (3,304) 113,279 18,496 128,471 7,686 93,692 5,567 106,945 Total revenue $ 794,417 $ 597,589 $ 421,175 $ 1,813,181 $ 1,030,927 $ 789,893 $ 606,018 $ 2,426,838 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 and six months ended June 30, 2022 related to performance obligations satisfied (or partially satisfied) in prior periods by $63.6 million and $110.3 million, respectively. Likewise, revenue was negatively impacted during the three and six months ended June 30, 2021 related to performance obligations satisfied (or partially satisfied) in prior periods by $8.9 million and $29.0 million, respectively. 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 June 30, 2022, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $4.9 billion, $2.2 billion and $1.3 billion for the Civil, Building and Specialty Contractors segments, respectively. As of June 30, 2021, the aggregate amounts of the transaction prices allocated to the remaining performance obligations of the Company’s construction contracts were $4.3 billion, $1.5 billion and $1.5 billion for the Civil, Building and Specialty Contractors segments, respectively. The Company typically recognizes revenue on Civil segment projects over a period of three one

Contract Assets and Liabilities

Contract Assets and Liabilities	6 Months Ended
	Jun. 30, 2022
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 June 30, As of December 31, Retention receivable $ 552,695 $ 568,881 Costs and estimated earnings in excess of billings: Claims 764,430 833,352 Unapproved change orders 515,851 418,054 Other unbilled costs and profits 92,359 105,362 Total costs and estimated earnings in excess of billings 1,372,640 1,356,768 Capitalized contract costs 70,400 69,027 Total contract assets $ 1,995,735 $ 1,994,676 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 June 30, 2022, the amount of retention receivable estimated by management to be collected beyond one year is approximately 48% 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. 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 and six months ended June 30, 2022, $19.0 million and $31.6 million, respectively, of previously capitalized contract costs were amortized and recognized as expense on the related contracts. During the three and six months ended June 30, 2021, $13.4 million and $25.3 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 June 30, As of December 31, Retention payable $ 227,725 $ 268,945 Billings in excess of costs and estimated earnings 956,735 761,689 Total contract liabilities $ 1,184,460 $ 1,030,634 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 of June 30, 2022, the amount of retention payable estimated by management to be remitted beyond one year is approximately 42% 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 and six months ended June 30, 2022 and included in the opening billings in excess of costs and estimated earnings balances for each period totaled $387.5 million and $425.5 million, respectively. Revenue recognized during the three and six months ended June 30, 2021 and included in the opening billings in excess of costs and estimated earnings balances for each period totaled $321.0 million and $458.8 million, respectively.

Cash, Cash Equivalents and Rest

Cash, Cash Equivalents and Restricted Cash	6 Months Ended
	Jun. 30, 2022
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 June 30, As of December 31, Cash and cash equivalents available for general corporate purposes $ 85,102 $ 60,192 Joint venture cash and cash equivalents 224,165 142,005 Cash and cash equivalents 309,267 202,197 Restricted cash 4,485 9,199 Total cash, cash equivalents and restricted cash $ 313,752 $ 211,396 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 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	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Earnings Per Common Share	Earnings Per Common Share Basic 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 and unexercised stock options. Potentially dilutive securities also included the Convertible Notes (as defined in Note 8) prior to their repayment on June 15, 2021; however, the Convertible Notes had no impact on diluted EPS. The Company calculates the effect of the potentially dilutive restricted stock units and stock options using the treasury stock method. Three Months Ended June 30, Six Months Ended June 30, (in thousands, except per common share data) 2022 2021 2022 2021 Net income (loss) attributable to Tutor Perini Corporation $ (63,003) $ 31,165 $ (84,637) $ 47,199 Weighted-average common shares outstanding, basic 51,276 50,999 51,192 50,956 Effect of dilutive restricted stock units and stock options — 376 — 406 Weighted-average common shares outstanding, diluted 51,276 51,375 51,192 51,362 Net income (loss) attributable to Tutor Perini Corporation per common share: Basic $ (1.23) $ 0.61 $ (1.65) $ 0.93 Diluted $ (1.23) $ 0.61 $ (1.65) $ 0.92 Anti-dilutive securities not included above 3,398 1,810 3,415 1,725 For the three and six months ended June 30, 2022, all outstanding restricted stock units 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 the period.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recognized an income tax benefit of $43.7 million and $47.6 million, resulting in an effective income tax rate of 41.3% and 37.1% for the three and six months ended June 30, 2022, respectively. The effective income tax rates for both periods were higher than the 21% federal statutory rate primarily due to pre-tax losses incurred in both periods 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 in the respective periods that caused a higher tax rate were primarily the earnings attributable to noncontrolling interests (for which income taxes are not the responsibility of the Company) and state income tax benefits (net of federal tax benefits). The effective income tax rates for both periods reflect the impact of a relatively low projected pre-tax loss for the year, which magnifies the impact of tax benefits on the effective income tax rate. The Company’s effective income tax rate for the three and six months ended June 30, 2021 was 20.4% and 20.9%, respectively. The 2021 periods reported pre-tax income and pre-tax income was projected for the 2021 year, thereby resulting in tax benefits reducing the effective income 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, with the decrease mostly offset by state income taxes (net of the federal tax benefit).

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2022
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 June 30, 2022: (in thousands) Civil Building Specialty Total Gross goodwill as of December 31, 2021 $ 492,074 $ 424,724 $ 156,193 $ 1,072,991 Accumulated impairment as of December 31, 2021 (286,931) (424,724) (156,193) (867,848) Goodwill as of December 31, 2021 205,143 — — 205,143 Current year activity — — — — Goodwill as of June 30, 2022 $ 205,143 $ — $ — $ 205,143 The Company performed its annual impairment test in the fourth quarter of 2021 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, impacts to our business as a result of the COVID-19 pandemic, 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 June 30, 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 (24,767) (23,232) 21,251 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 (146,060) — 3,230 3 years Total $ 381,940 $ (193,982) $ (113,067) $ 74,891 As of December 31, 2021 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 (23,650) (23,232) 22,368 20 years Contractor license 6,000 — (6,000) — N/A Customer relationships 39,800 (23,053) (16,645) 102 12 years Construction contract backlog 149,290 (137,102) — 12,188 3 years Total $ 381,940 $ (183,805) $ (113,067) $ 85,068 Amortization expense for the three and six months ended June 30, 2022 was $4.7 million and $10.2 million, respectively. Amortization expense for the three and six months ended June 30, 2021 was $10.7 million and $17.3 million, respectively. As of June 30, 2022, future amortization expense is estimated to be $4.3 million for the remainder of 2022, $2.2 million per year for the years 2023 through 2027 and $9.2 million thereafter.

Financial Commitments

Financial Commitments	6 Months Ended
	Jun. 30, 2022
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 June 30, As of December 31, 2017 Senior Notes $ 496,757 $ 496,244 Term Loan B 405,231 406,335 2020 Revolver — 27,000 Equipment financing and mortgages 53,409 56,246 Other indebtedness 12,911 7,829 Total debt 968,308 993,654 Less: Current maturities 30,565 24,406 Long-term debt, net $ 937,743 $ 969,248 The following table reconciles the outstanding debt balances to the reported debt balances as of June 30, 2022 and December 31, 2021: As of June 30, 2022 As of December 31, 2021 (in thousands) Outstanding Debt Unamortized Discounts and Issuance Costs Debt, Outstanding Debt Unamortized Discounts and Issuance Costs Debt, 2017 Senior Notes $ 500,000 $ (3,243) $ 496,757 $ 500,000 $ (3,756) $ 496,244 Term Loan B 417,563 (12,332) 405,231 419,688 (13,353) 406,335 The unamortized issuance costs related to the 2020 Revolver were $1.8 million and $2.1 million as of June 30, 2022 and December 31, 2021, 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 “2020 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 2020 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 2020 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 unpermitted indebtedness and annual excess cash flow (subject to certain exceptions). 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 2020 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) LIBOR or (b) 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 LIBOR rate for a one-month interest period plus 100 basis points) plus, (ii) an applicable margin. The margin applicable to the Term Loan B is between 4.50% and 4.75% for LIBOR and between 3.50% and 3.75% for base rate (which was initially 4.75% for LIBOR and 3.75% for base rate), and, in each case, is based on the Total Net Leverage Ratio. The margin applicable to the 2020 Revolver is between 4.25% and 4.75% for LIBOR and 3.25% and 3.75% for base rate (which was initially 4.75% for LIBOR and 3.75% for base rate), and, in each case, is based on the First Lien Net Leverage Ratio. 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 2020 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 agreement includes provisions for the replacement of LIBOR with an alternative benchmark rate upon LIBOR being discontinued. The weighted-average annual interest rate on borrowings under the 2020 Revolver was 6.91% during the six months ended June 30, 2022. The 2020 Credit Agreement requires, with respect to the 2020 Revolver only, 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 quarter ending March 31, 2022. 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 June 30, 2022, the entire $175 million was available under the 2020 Revolver. The Company had not utilized the 2020 Revolver for letters of credit. The Company was in compliance with the financial covenants under the 2020 Credit Agreement for the period ended June 30, 2022. Repurchase and Repayment of Convertible Notes On June 15, 2021, the Company repaid the $69.9 million outstanding principal balance of the 2.875% Convertible Senior Notes (the “Convertible Notes”). 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 Six Months Ended (in thousands) 2022 2021 2022 2021 Cash interest expense: Interest on 2017 Senior Notes $ 8,594 $ 8,593 $ 17,188 $ 17,187 Interest on Term Loan B 6,085 6,115 12,118 12,209 Interest on 2020 Revolver 130 552 633 673 Interest on Convertible Notes — 418 — 921 Other interest 479 409 940 890 Total cash interest expense 15,288 16,087 30,879 31,880 Non-cash interest expense: (a) Amortization of discount and debt issuance costs on Convertible Notes — 941 — 2,040 Amortization of discount and debt issuance costs on Term Loan B 516 527 1,021 1,066 Amortization of debt issuance costs on 2020 Revolver 141 142 283 284 Amortization of debt issuance costs on 2017 Senior Notes 259 241 513 478 Total non-cash interest expense 916 1,851 1,817 3,868 Total interest expense $ 16,204 $ 17,938 $ 32,696 $ 35,748 ____________________________________________________________________________________________________ (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 6.43%, respectively, for the six months ended June 30, 2022.

Leases

Leases	6 Months Ended
	Jun. 30, 2022
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 June 30, 2022, the Company’s operating leases have remaining lease terms ranging from less than one year to 16 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 and six months ended June 30, 2022 and 2021: Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Operating lease expense $ 3,912 $ 3,707 $ 8,069 $ 7,425 Short-term lease expense (a) 12,991 18,301 27,435 39,426 16,903 22,008 35,504 46,851 Less: Sublease income 190 176 380 346 Total lease expense $ 16,713 $ 21,832 $ 35,124 $ 46,505 ____________________________________________________________________________________________________ (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 June 30, As of December 31, Assets Right-of-use assets Other assets $ 56,018 $ 53,462 Total lease assets $ 56,018 $ 53,462 Liabilities Current lease liabilities Accrued expenses and other current liabilities $ 7,420 $ 7,481 Long-term lease liabilities Other long-term liabilities 53,025 50,057 Total lease liabilities $ 60,445 $ 57,538 Weighted-average remaining lease term 11.8 years 12.0 years Weighted-average discount rate 9.35 % 9.44 % The following table presents supplemental cash flow information and non-cash activity related to operating leases: Six Months Ended (in thousands) 2022 2021 Operating cash flow information: Cash paid for amounts included in the measurement of lease liabilities $ (7,717) $ (6,855) Non-cash activity: Right-of-use assets obtained in exchange for lease liabilities $ 7,887 $ 5,780 The following table presents maturities of operating lease liabilities on an undiscounted basis as of June 30, 2022: Year (in thousands) Operating Leases 2022 (excluding the six months ended June 30, 2022) $ 6,409 2023 11,255 2024 8,776 2025 7,869 2026 6,489 Thereafter 65,120 Total lease payments 105,918 Less: Imputed interest 45,473 Total $ 60,445

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2022
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: Five Star Electric Matter In the third quarter of 2015, Five Star Electric Corp. (“Five Star”), a wholly owned subsidiary of the Company that was acquired in 2011, entered into a tolling agreement (which has since expired) related to an ongoing investigation being conducted by the United States Attorney’s Office for the Eastern District of New York (“USAO EDNY”). Five Star has been cooperating with the USAO EDNY since late June 2014, when it was first made aware of the investigation, and has provided information requested by the government related to its use of certain minority-owned, women-owned, small and disadvantaged business enterprises and certain of Five Star’s employee compensation, benefit and tax practices. As of June 30, 2022, the Company has concluded that the potential for a material adverse financial impact on Five Star or the Company as a result of the investigation is remote. 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. STP also asserted $532 million of damages from WSDOT related to the pipe-strike by the TBM in a related lawsuit in Thurston County, described below. 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 January 5, 2022, the Washington Supreme Court issued an order granting STP, WSDOT and Hitachi’s requests for discretionary review of the portions of the Court of Appeals’ decision that affirmed the April and September 2018 decisions, which was argued on June 28, 2022. 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 filed its answer to WSDOT’s complaint and filed a counterclaim against WSDOT and Hitachi, as the TBM designer, seeking damages of $667 million. On October 3, 2019, STP and Hitachi entered into a settlement agreement which released and dismissed the claims that STP and Hitachi had against each other. 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. Judgment was entered on January 10, 2020, and STP appealed the decision. On June 14, 2022, the Court of Appeals of the State of Washington affirmed the judgment. STP filed a petition for discretionary review by the Washington Supreme Court on July 12, 2022. 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. Payment of damages and interest will be made if the Washington Supreme Court (1) denies STP’s petition for discretionary review or (2) grants discretionary review and upholds STP’s adverse verdict on appeal. Other than the possible future cash payment of $25.7 million for damages, 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. Upon final resolution, due to accrued interest, the possible future cash payment could exceed the $25.7 million for damages awarded by the jury. 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. 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 project reached substantial completion 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 are invalid due to lack of notice. TPBC denied the Developer’s claims and filed a counterclaim in March 2018. TPBC seeks in excess of $113 million in the arbitration, which includes 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. 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 and is now before the Second Circuit Court of Appeals. On August 25, 2021, the bankruptcy court approved the sale of the leasehold, which was completed on August 31, 2021. On October 1, 2021, the bankruptcy court converted the case from a Chapter 11 to a Chapter 7 bankruptcy proceeding. 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. 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 was argued on July 8, 2022, and a decision remains pending before the bankruptcy court. 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 against 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. As of June 30, 2022, the Company has concluded that the potential for a material adverse financial impact due to the Developer’s claims is remote. With respect to TPBC’s claims against the Developer, its owners, certain lenders and the Port Authority, management has made an estimate of the total anticipated recovery on this project, and such estimate is included in revenue recorded to date.

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation	Share-Based Compensation As of June 30, 2022, there were 1,270,316 shares of common stock available for grant under the Tutor Perini Corporation Omnibus Incentive Plan. During the six months ended June 30, 2022 and 2021, the Company granted the following share-based instruments: (1) restricted stock units (“RSUs”) totaling 375,769 and 280,000, respectively, with weighted-average grant date fair values per unit of $10.53 and $18.59, respectively; and (2) shares of unrestricted stock totaling 165,030 and 96,668, respectively, with weighted-average grant date fair values per share of $10.63 and $15.62, respectively. During the six months ended June 30, 2022, the Company also granted 315,768 cash-settled performance stock units (“CPSUs”) with a weighted-average grant date fair value per unit of $14.89. During the six months ended June 30, 2022, 500,000 stock options with a weighted-average exercise price per share of $11.15 expired. As of June 30, 2022 and December 31, 2021, liabilities totaling approximately $3.4 million and $4.8 million, respectively, were included on the Condensed Consolidated Balance Sheets for CPSUs and certain RSUs granted with guaranteed minimum payouts. The Company paid approximately $2.6 million and $0.3 million to settle certain awards upon vesting during the six-month periods ended June 30, 2022 and 2021, respectively. For the three and six months ended June 30, 2022, the Company recognized, as part of general and administrative expenses, costs for share-based payment arrangements totaling $1.4 million and $4.8 million, respectively, and $2.6 million and $5.0 million for the three and six months ended June 30, 2021, respectively. As of June 30, 2022, the balance of unamortized share-based compensation expense was $18.8 million, which is expected to be recognized over a weighted-average period of 2.1 years.

Employee Pension Plans

Employee Pension Plans	6 Months Ended
	Jun. 30, 2022
Retirement Benefits [Abstract]
Employee Pension Plans	Employee Pension PlansThe 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 and six months ended June 30, 2022 and 2021: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2022 2021 2022 2021 Interest cost $ 647 $ 582 $ 1,293 $ 1,164 Service cost 240 237 480 473 Expected return on plan assets (973) (1,015) (1,946) (2,030) Recognized net actuarial losses 638 683 1,277 1,366 Net periodic benefit cost $ 552 $ 487 $ 1,104 $ 973

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2022
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 June 30, 2022 and December 31, 2021: As of June 30, 2022 As of December 31, 2021 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) $ 309,267 $ — $ — $ 309,267 $ 202,197 $ — $ — $ 202,197 Restricted cash (a) 4,485 — — 4,485 9,199 — — 9,199 Restricted investments (b) — 84,498 — 84,498 — 84,355 — 84,355 Investments in lieu of retention (c) 16,102 62,410 — 78,512 27,472 58,856 — 86,328 Total $ 329,854 $ 146,908 $ — $ 476,762 $ 238,868 $ 143,211 $ — $ 382,079 ____________________________________________________________________________________________________ (a) Includes money market funds and short-term investments with maturity dates of three months or less when acquired. (b) Restricted investments, as of June 30, 2022 and December 31, 2021, 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 June 30, 2022 and December 31, 2021, and are comprised of money market funds of $16.1 million and $27.5 million, respectively, and AFS debt securities of $62.4 million and $58.9 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 June 30, 2022 and December 31, 2021: As of June 30, 2022 As of December 31, 2021 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Fair Value Amortized Cost Unrealized Gains Unrealized Losses Fair Value Restricted investments: Corporate debt securities $ 50,971 $ 22 $ (2,758) $ 48,235 $ 46,649 $ 438 $ (438) $ 46,649 U.S. government agency securities 28,346 2 (1,063) 27,285 28,316 459 (133) 28,642 Municipal bonds 9,380 — (926) 8,454 8,475 100 (78) 8,497 Corporate certificates of deposit 566 — (42) 524 571 2 (6) 567 Total restricted investments 89,263 24 (4,789) 84,498 84,011 999 (655) 84,355 Investments in lieu of retention: Corporate debt securities 64,601 8 (3,203) 61,406 58,261 72 (741) 57,592 Municipal bonds 815 189 — 1,004 812 452 — 1,264 Total investments in lieu of retention 65,416 197 (3,203) 62,410 59,073 524 (741) 58,856 Total AFS debt securities $ 154,679 $ 221 $ (7,992) $ 146,908 $ 143,084 $ 1,523 $ (1,396) $ 143,211 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 June 30, 2022 and December 31, 2021: As of June 30, 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 $ 32,447 $ (1,911) $ 9,058 $ (847) $ 41,505 $ (2,758) U.S. government agency securities 21,624 (666) 4,462 (397) 26,086 (1,063) Municipal bonds 6,843 (709) 1,559 (217) 8,402 (926) Corporate certificates of deposit 354 (26) 115 (16) 469 (42) Total restricted investments 61,268 (3,312) 15,194 (1,477) 76,462 (4,789) Investments in lieu of retention: Corporate debt securities 55,606 (3,116) 2,347 (87) 57,953 (3,203) Total investments in lieu of retention 55,606 (3,116) 2,347 (87) 57,953 (3,203) Total AFS debt securities $ 116,874 $ (6,428) $ 17,541 $ (1,564) $ 134,415 $ (7,992) As of December 31, 2021 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 $ 28,639 $ (434) $ 207 $ (4) $ 28,846 $ (438) U.S. government agency securities 5,382 (97) 824 (36) 6,206 (133) Municipal bonds 2,714 (35) 907 (43) 3,621 (78) Corporate certificates of deposit 435 (6) — — 435 (6) Total restricted investments 37,170 (572) 1,938 (83) 39,108 (655) Investments in lieu of retention: Corporate debt securities 46,486 (736) 714 (5) 47,200 (741) Total investments in lieu of retention 46,486 (736) 714 (5) 47,200 (741) Total AFS debt securities $ 83,656 $ (1,308) $ 2,652 $ (88) $ 86,308 $ (1,396) The unrealized losses in AFS debt securities as of June 30, 2022 and December 31, 2021 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 June 30, 2022 and December 31, 2021. 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, the Company has not recognized any impairment losses in earnings during the six months ended June 30, 2022 or 2021. The amortized cost and fair value of AFS debt securities by contractual maturity as of June 30, 2022 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 $ 22,628 $ 22,529 Due after one year through five years 121,155 114,512 Due after five years 10,896 9,867 Total $ 154,679 $ 146,908 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 $410.0 million and $504.9 million as of June 30, 2022 and December 31, 2021, respectively. The fair value of the 2017 Senior Notes was determined using Level 1 inputs, specifically current observable market prices. The fair value of the Term Loan B was $389.4 million and $419.7 million as of June 30, 2022 and December 31, 2021, respectively. The fair value of the Term Loan B was 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 June 30, 2022 and December 31, 2021.

Variable Interest Entities (VIE

Variable Interest Entities (VIEs)	6 Months Ended
	Jun. 30, 2022
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 June 30, 2022, the Company had unconsolidated VIE-related current assets of $0.4 million and no current liabilities in the Company’s Condensed Consolidated Balance Sheet. As of December 31, 2021, the Company had unconsolidated VIE-related current assets and liabilities of $0.7 million and $0.4 million, respectively, included in the Company’s Condensed Consolidated Balance Sheet. 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 June 30, 2022. As of June 30, 2022, the Company’s Condensed Consolidated Balance Sheet included current and noncurrent assets of $558.4 million and $14.4 million, respectively, as well as current liabilities of $576.1 million related to the operations of its consolidated VIEs. As of December 31, 2021, the Company’s Condensed Consolidated Balance Sheet included current and noncurrent assets of $568.2 million and $3.0 million, respectively, as well as current liabilities of $496.9 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	6 Months Ended
	Jun. 30, 2022
Stockholders' Equity Note [Abstract]
Changes in Equity	Changes in Equity A reconciliation of the changes in equity for the three and six months ended June 30, 2022 and 2021 is provided below: Three Months Ended June 30, 2022 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - March 31, 2022 $ 51,200 $ 1,134,688 $ 492,676 $ (46,745) $ 14,702 $ 1,646,521 Net income (loss) — — (63,003) — 983 (62,020) Other comprehensive loss — — — (2,218) (773) (2,991) Share-based compensation — 3,278 — — — 3,278 Issuance of common stock, net 158 — — — — 158 Distributions to noncontrolling interests — — — — (17,000) (17,000) Balance - June 30, 2022 $ 51,358 $ 1,137,966 $ 429,673 $ (48,963) $ (2,088) $ 1,567,946 Six Months Ended June 30, 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) — — (84,637) — 3,804 (80,833) Other comprehensive loss — — — (5,328) (1,152) (6,480) Share-based compensation — 5,002 — — — 5,002 Issuance of common stock, net 262 (186) — — — 76 Contributions from noncontrolling interests — — — — 961 961 Distributions to noncontrolling interests — — — — (24,500) (24,500) Balance - June 30, 2022 $ 51,358 $ 1,137,966 $ 429,673 $ (48,963) $ (2,088) $ 1,567,946 Three Months Ended June 30, 2021 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - March 31, 2021 $ 50,938 $ 1,127,624 $ 438,419 $ (47,356) $ 2,456 $ 1,572,081 Net income — — 31,165 — 10,446 41,611 Other comprehensive income — — — 830 280 1,110 Share-based compensation — 3,171 — — — 3,171 Issuance of common stock, net 134 (427) — — — (293) Distributions to noncontrolling interests — — — — (7,250) (7,250) Balance - June 30, 2021 $ 51,072 $ 1,130,368 $ 469,584 $ (46,526) $ 5,932 $ 1,610,430 Six Months Ended June 30, 2021 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - December 31, 2020 $ 50,827 $ 1,127,385 $ 422,385 $ (46,741) $ (10,911) $ 1,542,945 Net income — — 47,199 — 19,517 66,716 Other comprehensive income — — — 215 576 791 Share-based compensation — 4,757 — — — 4,757 Issuance of common stock, net 245 (1,774) — — — (1,529) Contributions from noncontrolling interests — — — — 4,000 4,000 Distributions to noncontrolling interests — — — — (7,250) (7,250) Balance - June 30, 2021 $ 51,072 $ 1,130,368 $ 469,584 $ (46,526) $ 5,932 $ 1,610,430

Other Comprehensive Income (Los

Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2022
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 and six months ended June 30, 2022 and 2021 were as follows: Three Months Ended June 30, 2022 Three Months Ended June 30, 2021 (in thousands) Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Before-Tax Amount Tax Expense Net-of-Tax Amount Other comprehensive income (loss): Defined benefit pension plan adjustments $ 638 $ (181) $ 457 $ 683 $ (192) $ 491 Foreign currency translation adjustments (1,698) 308 (1,390) 446 (46) 400 Unrealized gain (loss) in fair value of investments (2,384) 326 (2,058) 303 (84) 219 Total other comprehensive income (loss) (3,444) 453 (2,991) 1,432 (322) 1,110 Less: Other comprehensive income (loss) attributable to noncontrolling interests (773) — (773) 280 — 280 Total other comprehensive income (loss) attributable to Tutor Perini Corporation $ (2,671) $ 453 $ (2,218) $ 1,152 $ (322) $ 830 Six Months Ended June 30, 2022 Six Months Ended June 30, 2021 (in thousands) Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Other comprehensive income (loss): Defined benefit pension plan adjustments $ 1,277 $ (362) $ 915 $ 1,366 $ (383) $ 983 Foreign currency translation adjustments (1,442) 309 (1,133) 848 (76) 772 Unrealized loss in fair value of investments (7,898) 1,636 (6,262) (1,247) 283 (964) Total other comprehensive income (loss) (8,063) 1,583 (6,480) 967 (176) 791 Less: Other comprehensive income (loss) attributable to noncontrolling interests (1,152) — (1,152) 576 — 576 Total other comprehensive income (loss) attributable to Tutor Perini Corporation $ (6,911) $ 1,583 $ (5,328) $ 391 $ (176) $ 215 The changes in AOCI balances by component (after tax) attributable to Tutor Perini Corporation and attributable to noncontrolling interests during the three and six months ended June 30, 2022 were as follows: Three Months Ended June 30, 2022 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of March 31, 2022 $ (37,408) $ (5,796) $ (3,541) $ (46,745) Other comprehensive loss before reclassifications — (772) (1,927) (2,699) Amounts reclassified from AOCI 457 — 24 481 Total other comprehensive income (loss) 457 (772) (1,903) (2,218) Balance as of June 30, 2022 $ (36,951) $ (6,568) $ (5,444) $ (48,963) Attributable to Noncontrolling Interests: Balance as of March 31, 2022 $ — $ 808 $ (645) $ 163 Other comprehensive loss — (618) (155) (773) Balance as of June 30, 2022 $ — $ 190 $ (800) $ (610) Six Months Ended June 30, 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 — (781) (5,495) (6,276) Amounts reclassified from AOCI 915 — 33 948 Total other comprehensive income (loss) 915 (781) (5,462) (5,328) Balance as of June 30, 2022 $ (36,951) $ (6,568) $ (5,444) $ (48,963) Attributable to Noncontrolling Interests: Balance as of December 31, 2021 $ — $ 542 $ — $ 542 Other comprehensive loss — (352) (800) (1,152) Balance as of June 30, 2022 $ — $ 190 $ (800) $ (610) The changes in AOCI balances by component (after tax) attributable to Tutor Perini Corporation and attributable to noncontrolling interests during the three and six months ended June 30, 2021 were as follows: Three Months Ended June 30, 2021 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of March 31, 2021 $ (43,595) $ (5,246) $ 1,485 $ (47,356) Other comprehensive income before reclassifications — 120 233 353 Amounts reclassified from AOCI 491 — (14) 477 Total other comprehensive income 491 120 219 830 Balance as of June 30, 2021 $ (43,104) $ (5,126) $ 1,704 $ (46,526) Attributable to Noncontrolling Interests: Balance as of March 31, 2021 $ — $ 698 $ — $ 698 Other comprehensive income — 280 — 280 Balance as of June 30, 2021 $ — $ 978 $ — $ 978 Six Months Ended June 30, 2021 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of December 31, 2020 $ (44,087) $ (5,322) $ 2,668 $ (46,741) Other comprehensive income (loss) before reclassifications — 196 (827) (631) Amounts reclassified from AOCI 983 — (137) 846 Total other comprehensive income (loss) 983 196 (964) 215 Balance as of June 30, 2021 $ (43,104) $ (5,126) $ 1,704 $ (46,526) Attributable to Noncontrolling Interests: Balance as of December 31, 2020 $ — $ 402 $ — $ 402 Other comprehensive income — 576 — 576 Balance as of June 30, 2021 $ — $ 978 $ — $ 978 The significant items reclassified out of AOCI and the corresponding location and impact on the Condensed Consolidated Statements of Operations during the three and six months ended June 30, 2022 and 2021 were as follows: Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Component of AOCI: Defined benefit pension plan adjustments (a) $ 638 $ 683 $ 1,277 $ 1,366 Income tax benefit (b) (181) (192) (362) (383) Net of tax $ 457 $ 491 $ 915 $ 983 Unrealized (gain) loss in fair value of investment adjustments (a) $ 31 $ (17) $ 42 $ (173) Income tax expense (benefit) (b) (7) 3 (9) 36 Net of tax $ 24 $ (14) $ 33 $ (137) ___________________________________________________________________________________________________ (a) Amount included in other income, net on the Condensed Consolidated Statements of Operations. (b) Amounts included in income tax (expense) benefit on the Condensed Consolidated Statements of Operations.

Business Segments

Business Segments	6 Months Ended
	Jun. 30, 2022
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 and six months ended June 30, 2022 and 2021: Reportable Segments (in thousands) Civil Building Specialty Total Corporate Consolidated Three Months Ended June 30, 2022 Total revenue $ 453,215 $ 262,556 $ 190,464 $ 906,235 $ — $ 906,235 Elimination of intersegment revenue (49,593) 4,385 — (45,208) — (45,208) Revenue from external customers $ 403,622 $ 266,941 $ 190,464 $ 861,027 $ — $ 861,027 Loss from construction operations $ (9,767) $ (67) $ (66,731) $ (76,565) (a) $ (13,989) (b) $ (90,554) Capital expenditures $ 15,656 $ 50 $ 816 $ 16,522 $ 295 $ 16,817 Depreciation and amortization (c) $ 15,025 $ 390 $ 508 $ 15,923 $ 2,360 $ 18,283 Three Months Ended June 30, 2021 Total revenue $ 643,055 $ 415,801 $ 281,370 $ 1,340,226 $ — $ 1,340,226 Elimination of intersegment revenue (87,703) (33,141) (139) (120,983) — (120,983) Revenue from external customers $ 555,352 $ 382,660 $ 281,231 $ 1,219,243 $ — $ 1,219,243 Income (loss) from construction operations $ 75,073 $ (2,488) $ 9,960 $ 82,545 (d) $ (13,792) (b) $ 68,753 Capital expenditures $ 8,616 $ 51 $ 19 $ 8,686 $ 339 $ 9,025 Depreciation and amortization (c) $ 31,178 $ 424 $ 892 $ 32,494 $ 2,767 $ 35,261 ____________________________________________________________________________________________________ (a) During the three months ended June 30, 2022, the Company’s income (loss) from construction operations was adversely impacted by $33.5 million ($24.2 million, or $0.47 per diluted share, after tax) due to an unfavorable adjustment related to the unforeseen cost of project close-out issues, remediation work, extended project supervision and associated labor inefficiencies on the electrical component of a transportation project in the Northeast in the Specialty Contractors segment, a non-cash charge of $17.8 million that increased cost of operations ($12.8 million, or $0.25 per diluted share, after tax) associated with an unexpected partial reversal by an appellate court of previously awarded legal damages related to a completed electrical project in New York in the Specialty Contractors segment, and a $16.2 million unfavorable non-cash impact ($11.6 million, or $0.23 per diluted share, after tax) related to the settlement of a long-disputed, completed Civil segment project in Maryland. (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 June 30, 2021, the Company recorded a reduction of $20.1 million in cost of operations ($14.6 million, or $0.28 per diluted share, after tax) due to a favorable trial court ruling awarding the Company the recovery of certain costs previously incurred on a completed electrical project in New York in the Specialty Contractors segment. Reportable Segments (in thousands) Civil Building Specialty Total Corporate Consolidated Six Months Ended June 30, 2022 Total revenue $ 913,957 $ 618,534 $ 421,328 $ 1,953,819 $ — $ 1,953,819 Elimination of intersegment revenue (119,540) (20,945) (153) (140,638) — (140,638) Revenue from external customers $ 794,417 $ 597,589 $ 421,175 $ 1,813,181 $ — $ 1,813,181 Income (loss) from construction operations $ (10,734) $ 9,397 $ (70,625) $ (71,962) (a) $ (28,499) (b) $ (100,461) Capital expenditures $ 26,831 $ 52 $ 1,454 $ 28,337 $ 508 $ 28,845 Depreciation and amortization (c) $ 32,025 $ 791 $ 1,010 $ 33,826 $ 4,695 $ 38,521 Six Months Ended June 30, 2021 Total revenue $ 1,226,199 $ 872,971 $ 606,318 $ 2,705,488 $ — $ 2,705,488 Elimination of intersegment revenue (195,272) (83,078) (300) (278,650) — (278,650) Revenue from external customers $ 1,030,927 $ 789,893 $ 606,018 $ 2,426,838 $ — $ 2,426,838 Income (loss) from construction operations $ 125,178 $ 8,728 $ 11,284 $ 145,190 (d) $ (26,733) (b) $ 118,457 Capital expenditures $ 18,180 $ 124 $ 164 $ 18,468 $ 392 $ 18,860 Depreciation and amortization (c) $ 53,891 $ 856 $ 1,851 $ 56,598 $ 5,537 $ 62,135 ____________________________________________________________________________________________________ (a) During the six months ended June 30, 2022, the Company’s income (loss) from construction operations was adversely impacted by $33.5 million ($24.2 million, or $0.47 per diluted share, after tax) due to an unfavorable adjustment related to the unforeseen cost of project close-out issues, remediation work, extended project supervision and associated labor inefficiencies on the electrical component of a transportation project in the Northeast in the Specialty Contractors segment, and $29.1 million ($22.9 million, or $0.45 per diluted share, after tax) on 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. The Company’s income (loss) from construction operations was also impacted by a non-cash charge of $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 Civil segment bridge project in New York, a non-cash charge of $17.8 million that increased cost of operations ($12.8 million, or $0.25 per diluted share, after tax) associated with an unexpected partial reversal by an appellate court of previously awarded legal damages related to a completed electrical project in New York in the Specialty Contractors segment, a $16.2 million unfavorable non-cash impact ($11.6 million, or $0.23 per diluted share, after tax) related to the settlement of a long-disputed, completed Civil segment project in Maryland, and a $14.6 million ($11.2 million, or $0.22 per diluted share, after tax) unfavorable adjustment split evenly between the Civil and Building segments due to changes in estimates on a transportation project in the Northeast. (b) Consists primarily of corporate general and administrative expenses. (c) Depreciation and amortization is included in income (loss) from construction operations. (d) During the six months ended June 30, 2021, the Company recorded a reduction of $20.1 million in cost of operations ($14.6 million, or $0.28 per diluted share, after tax) due to a favorable trial court ruling awarding the Company the recovery of certain costs previously incurred on a completed electrical project in New York in the Specialty Contractors segment. A reconciliation of segment results to the consolidated income (loss) before income taxes is as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2022 2021 2022 2021 Income (loss) from construction operations $ (90,554) $ 68,753 $ (100,461) $ 118,457 Other income, net 1,020 1,431 4,717 1,606 Interest expense (16,204) (17,938) (32,696) (35,748) Income (loss) before income taxes $ (105,738) $ 52,246 $ (128,440) $ 84,315 Total assets by segment were as follows: (in thousands) As of June 30, As of December 31, Civil $ 3,432,649 $ 3,310,648 Building 919,426 980,989 Specialty Contractors 600,332 631,710 Corporate and other (a) (232,724) (198,449) Total assets $ 4,719,683 $ 4,724,898 ____________________________________________________________________________________________________ (a) Consists principally of cash, equipment, tax-related assets and insurance-related assets, offset by the elimination of assets related to intersegment revenue.

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
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 and six months ended June 30, 2022 and 2021. Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Civil segment revenue by end market: Mass transit (includes certain transportation and tunneling projects) $ 225,574 $ 366,534 $ 482,712 $ 675,409 Bridges 85,073 65,775 126,320 111,942 Military defense facilities 60,355 44,585 110,149 94,121 Water 22,384 24,800 43,036 51,610 Other 10,236 53,658 32,200 97,845 Total Civil segment revenue $ 403,622 $ 555,352 $ 794,417 $ 1,030,927 Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Building segment revenue by end market: Municipal and government $ 83,826 $ 74,475 $ 159,781 $ 146,384 Hospitality and gaming 24,077 86,145 100,995 186,712 Commercial and industrial facilities 49,309 101,960 88,395 232,012 Health care facilities 50,277 13,598 85,837 24,007 Mass transit (includes transportation projects) 10,447 34,344 70,648 60,879 Education facilities 31,176 46,143 61,036 84,460 Other 17,829 25,995 30,897 55,439 Total Building segment revenue $ 266,941 $ 382,660 $ 597,589 $ 789,893 Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Specialty Contractors segment revenue by end market: Mass transit (includes certain transportation and tunneling projects) $ 75,395 $ 148,045 $ 194,422 $ 329,208 Commercial and industrial facilities 36,444 36,637 66,301 75,386 Multi-unit residential 28,243 30,649 53,181 73,444 Water 13,972 17,514 35,419 38,668 Federal government 14,106 455 20,855 4,502 Education facilities 8,165 18,425 20,441 31,781 Other 14,139 29,506 30,556 53,029 Total Specialty Contractors segment revenue $ 190,464 $ 281,231 $ 421,175 $ 606,018 Three Months Ended Three Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by customer type: State and local agencies $ 319,411 $ 89,473 $ 91,817 $ 500,701 $ 481,333 $ 92,275 $ 124,080 $ 697,688 Federal agencies 62,991 42,402 3,186 108,579 49,335 49,287 5,704 104,326 Private owners 21,220 135,066 95,461 251,747 24,684 241,098 151,447 417,229 Total revenue $ 403,622 $ 266,941 $ 190,464 $ 861,027 $ 555,352 $ 382,660 $ 281,231 $ 1,219,243 Six Months Ended Six Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by customer type: State and local agencies $ 633,253 $ 213,163 $ 184,048 $ 1,030,464 $ 871,835 $ 168,856 $ 267,004 $ 1,307,695 Federal agencies 113,685 88,500 14,520 216,705 100,968 99,648 26,941 227,557 Private owners 47,479 295,926 222,607 566,012 58,124 521,389 312,073 891,586 Total revenue $ 794,417 $ 597,589 $ 421,175 $ 1,813,181 $ 1,030,927 $ 789,893 $ 606,018 $ 2,426,838 Three Months Ended Three Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by contract type: Fixed price $ 337,414 $ 64,296 $ 158,036 $ 559,746 $ 461,068 $ 95,349 $ 246,290 $ 802,707 Guaranteed maximum price 301 145,954 3,361 149,616 498 247,402 2,563 250,463 Unit price 72,210 — 22,064 94,274 88,516 (1,564) 28,703 115,655 Cost plus fee and other (6,303) 56,691 7,003 57,391 5,270 41,473 3,675 50,418 Total revenue $ 403,622 $ 266,941 $ 190,464 $ 861,027 $ 555,352 $ 382,660 $ 281,231 $ 1,219,243 Six Months Ended Six Months Ended (in thousands) Civil Building Specialty Total Civil Building Specialty Total Revenue by contract type: Fixed price $ 674,407 $ 166,814 $ 357,099 $ 1,198,320 $ 880,224 $ 179,798 $ 539,758 $ 1,599,780 Guaranteed maximum price 594 317,463 8,694 326,751 1,768 517,856 3,693 523,317 Unit price 122,720 33 36,886 159,639 141,249 (1,453) 57,000 196,796 Cost plus fee and other (3,304) 113,279 18,496 128,471 7,686 93,692 5,567 106,945 Total revenue $ 794,417 $ 597,589 $ 421,175 $ 1,813,181 $ 1,030,927 $ 789,893 $ 606,018 $ 2,426,838

Contract Assets and Liabiliti_2

Contract Assets and Liabilities (Tables)	6 Months Ended
	Jun. 30, 2022
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 June 30, As of December 31, Retention receivable $ 552,695 $ 568,881 Costs and estimated earnings in excess of billings: Claims 764,430 833,352 Unapproved change orders 515,851 418,054 Other unbilled costs and profits 92,359 105,362 Total costs and estimated earnings in excess of billings 1,372,640 1,356,768 Capitalized contract costs 70,400 69,027 Total contract assets $ 1,995,735 $ 1,994,676 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 June 30, As of December 31, Retention payable $ 227,725 $ 268,945 Billings in excess of costs and estimated earnings 956,735 761,689 Total contract liabilities $ 1,184,460 $ 1,030,634

Cash, Cash Equivalents and Re_2

Cash, Cash Equivalents and Restricted Cash (Tables)	6 Months Ended
	Jun. 30, 2022
Cash and Cash Equivalents [Abstract]
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 June 30, As of December 31, Cash and cash equivalents available for general corporate purposes $ 85,102 $ 60,192 Joint venture cash and cash equivalents 224,165 142,005 Cash and cash equivalents 309,267 202,197 Restricted cash 4,485 9,199 Total cash, cash equivalents and restricted cash $ 313,752 $ 211,396

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Calculations of Basic and Diluted EPS	Three Months Ended June 30, Six Months Ended June 30, (in thousands, except per common share data) 2022 2021 2022 2021 Net income (loss) attributable to Tutor Perini Corporation $ (63,003) $ 31,165 $ (84,637) $ 47,199 Weighted-average common shares outstanding, basic 51,276 50,999 51,192 50,956 Effect of dilutive restricted stock units and stock options — 376 — 406 Weighted-average common shares outstanding, diluted 51,276 51,375 51,192 51,362 Net income (loss) attributable to Tutor Perini Corporation per common share: Basic $ (1.23) $ 0.61 $ (1.65) $ 0.93 Diluted $ (1.23) $ 0.61 $ (1.65) $ 0.92 Anti-dilutive securities not included above 3,398 1,810 3,415 1,725

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	The following table presents the changes in the carrying amount of goodwill since its inception through June 30, 2022: (in thousands) Civil Building Specialty Total Gross goodwill as of December 31, 2021 $ 492,074 $ 424,724 $ 156,193 $ 1,072,991 Accumulated impairment as of December 31, 2021 (286,931) (424,724) (156,193) (867,848) Goodwill as of December 31, 2021 205,143 — — 205,143 Current year activity — — — — Goodwill as of June 30, 2022 $ 205,143 $ — $ — $ 205,143
Intangible Assets	Intangible assets consist of the following: As of June 30, 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 (24,767) (23,232) 21,251 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 (146,060) — 3,230 3 years Total $ 381,940 $ (193,982) $ (113,067) $ 74,891 As of December 31, 2021 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 (23,650) (23,232) 22,368 20 years Contractor license 6,000 — (6,000) — N/A Customer relationships 39,800 (23,053) (16,645) 102 12 years Construction contract backlog 149,290 (137,102) — 12,188 3 years Total $ 381,940 $ (183,805) $ (113,067) $ 85,068

Financial Commitments (Tables)

Financial Commitments (Tables)	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Long-Term Debt	Long-term debt as reported on the Condensed Consolidated Balance Sheets consisted of the following: (in thousands) As of June 30, As of December 31, 2017 Senior Notes $ 496,757 $ 496,244 Term Loan B 405,231 406,335 2020 Revolver — 27,000 Equipment financing and mortgages 53,409 56,246 Other indebtedness 12,911 7,829 Total debt 968,308 993,654 Less: Current maturities 30,565 24,406 Long-term debt, net $ 937,743 $ 969,248
Reconciliation of Outstanding Debt Balance to Reported Debt Balance	The following table reconciles the outstanding debt balances to the reported debt balances as of June 30, 2022 and December 31, 2021: As of June 30, 2022 As of December 31, 2021 (in thousands) Outstanding Debt Unamortized Discounts and Issuance Costs Debt, Outstanding Debt Unamortized Discounts and Issuance Costs Debt, 2017 Senior Notes $ 500,000 $ (3,243) $ 496,757 $ 500,000 $ (3,756) $ 496,244 Term Loan B 417,563 (12,332) 405,231 419,688 (13,353) 406,335
Summary 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 Six Months Ended (in thousands) 2022 2021 2022 2021 Cash interest expense: Interest on 2017 Senior Notes $ 8,594 $ 8,593 $ 17,188 $ 17,187 Interest on Term Loan B 6,085 6,115 12,118 12,209 Interest on 2020 Revolver 130 552 633 673 Interest on Convertible Notes — 418 — 921 Other interest 479 409 940 890 Total cash interest expense 15,288 16,087 30,879 31,880 Non-cash interest expense: (a) Amortization of discount and debt issuance costs on Convertible Notes — 941 — 2,040 Amortization of discount and debt issuance costs on Term Loan B 516 527 1,021 1,066 Amortization of debt issuance costs on 2020 Revolver 141 142 283 284 Amortization of debt issuance costs on 2017 Senior Notes 259 241 513 478 Total non-cash interest expense 916 1,851 1,817 3,868 Total interest expense $ 16,204 $ 17,938 $ 32,696 $ 35,748 ____________________________________________________________________________________________________ (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 6.43%, respectively, for the six months ended June 30, 2022.

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Components of Lease Expense	The following table presents components of lease expense for the three and six months ended June 30, 2022 and 2021: Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Operating lease expense $ 3,912 $ 3,707 $ 8,069 $ 7,425 Short-term lease expense (a) 12,991 18,301 27,435 39,426 16,903 22,008 35,504 46,851 Less: Sublease income 190 176 380 346 Total lease expense $ 16,713 $ 21,832 $ 35,124 $ 46,505 ____________________________________________________________________________________________________ (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.
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 June 30, As of December 31, Assets Right-of-use assets Other assets $ 56,018 $ 53,462 Total lease assets $ 56,018 $ 53,462 Liabilities Current lease liabilities Accrued expenses and other current liabilities $ 7,420 $ 7,481 Long-term lease liabilities Other long-term liabilities 53,025 50,057 Total lease liabilities $ 60,445 $ 57,538 Weighted-average remaining lease term 11.8 years 12.0 years Weighted-average discount rate 9.35 % 9.44 % The following table presents supplemental cash flow information and non-cash activity related to operating leases: Six Months Ended (in thousands) 2022 2021 Operating cash flow information: Cash paid for amounts included in the measurement of lease liabilities $ (7,717) $ (6,855) Non-cash activity: Right-of-use assets obtained in exchange for lease liabilities $ 7,887 $ 5,780
Maturity of Operating Lease Liabilities on an Undiscounted Basis	The following table presents maturities of operating lease liabilities on an undiscounted basis as of June 30, 2022: Year (in thousands) Operating Leases 2022 (excluding the six months ended June 30, 2022) $ 6,409 2023 11,255 2024 8,776 2025 7,869 2026 6,489 Thereafter 65,120 Total lease payments 105,918 Less: Imputed interest 45,473 Total $ 60,445

Employee Pension Plans (Tables)

Employee Pension Plans (Tables)	6 Months Ended
	Jun. 30, 2022
Retirement Benefits [Abstract]
Summary of Net Periodic Benefit Cost	The following table sets forth a summary of the net periodic benefit cost for the three and six months ended June 30, 2022 and 2021: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2022 2021 2022 2021 Interest cost $ 647 $ 582 $ 1,293 $ 1,164 Service cost 240 237 480 473 Expected return on plan assets (973) (1,015) (1,946) (2,030) Recognized net actuarial losses 638 683 1,277 1,366 Net periodic benefit cost $ 552 $ 487 $ 1,104 $ 973

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
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 June 30, 2022 and December 31, 2021: As of June 30, 2022 As of December 31, 2021 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) $ 309,267 $ — $ — $ 309,267 $ 202,197 $ — $ — $ 202,197 Restricted cash (a) 4,485 — — 4,485 9,199 — — 9,199 Restricted investments (b) — 84,498 — 84,498 — 84,355 — 84,355 Investments in lieu of retention (c) 16,102 62,410 — 78,512 27,472 58,856 — 86,328 Total $ 329,854 $ 146,908 $ — $ 476,762 $ 238,868 $ 143,211 $ — $ 382,079 ____________________________________________________________________________________________________ (a) Includes money market funds and short-term investments with maturity dates of three months or less when acquired. (b) Restricted investments, as of June 30, 2022 and December 31, 2021, 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 June 30, 2022 and December 31, 2021, and are comprised of money market funds of $16.1 million and $27.5 million, respectively, and AFS debt securities of $62.4 million and $58.9 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 June 30, 2022 and December 31, 2021: As of June 30, 2022 As of December 31, 2021 (in thousands) Amortized Cost Unrealized Gains Unrealized Losses Fair Value Amortized Cost Unrealized Gains Unrealized Losses Fair Value Restricted investments: Corporate debt securities $ 50,971 $ 22 $ (2,758) $ 48,235 $ 46,649 $ 438 $ (438) $ 46,649 U.S. government agency securities 28,346 2 (1,063) 27,285 28,316 459 (133) 28,642 Municipal bonds 9,380 — (926) 8,454 8,475 100 (78) 8,497 Corporate certificates of deposit 566 — (42) 524 571 2 (6) 567 Total restricted investments 89,263 24 (4,789) 84,498 84,011 999 (655) 84,355 Investments in lieu of retention: Corporate debt securities 64,601 8 (3,203) 61,406 58,261 72 (741) 57,592 Municipal bonds 815 189 — 1,004 812 452 — 1,264 Total investments in lieu of retention 65,416 197 (3,203) 62,410 59,073 524 (741) 58,856 Total AFS debt securities $ 154,679 $ 221 $ (7,992) $ 146,908 $ 143,084 $ 1,523 $ (1,396) $ 143,211
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 June 30, 2022 and December 31, 2021: As of June 30, 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 $ 32,447 $ (1,911) $ 9,058 $ (847) $ 41,505 $ (2,758) U.S. government agency securities 21,624 (666) 4,462 (397) 26,086 (1,063) Municipal bonds 6,843 (709) 1,559 (217) 8,402 (926) Corporate certificates of deposit 354 (26) 115 (16) 469 (42) Total restricted investments 61,268 (3,312) 15,194 (1,477) 76,462 (4,789) Investments in lieu of retention: Corporate debt securities 55,606 (3,116) 2,347 (87) 57,953 (3,203) Total investments in lieu of retention 55,606 (3,116) 2,347 (87) 57,953 (3,203) Total AFS debt securities $ 116,874 $ (6,428) $ 17,541 $ (1,564) $ 134,415 $ (7,992) As of December 31, 2021 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 $ 28,639 $ (434) $ 207 $ (4) $ 28,846 $ (438) U.S. government agency securities 5,382 (97) 824 (36) 6,206 (133) Municipal bonds 2,714 (35) 907 (43) 3,621 (78) Corporate certificates of deposit 435 (6) — — 435 (6) Total restricted investments 37,170 (572) 1,938 (83) 39,108 (655) Investments in lieu of retention: Corporate debt securities 46,486 (736) 714 (5) 47,200 (741) Total investments in lieu of retention 46,486 (736) 714 (5) 47,200 (741) Total AFS debt securities $ 83,656 $ (1,308) $ 2,652 $ (88) $ 86,308 $ (1,396)
Investments Classified by Contractual Maturity Date	The amortized cost and fair value of AFS debt securities by contractual maturity as of June 30, 2022 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 $ 22,628 $ 22,529 Due after one year through five years 121,155 114,512 Due after five years 10,896 9,867 Total $ 154,679 $ 146,908

Changes in Equity (Tables)

Changes in Equity (Tables)	6 Months Ended
	Jun. 30, 2022
Stockholders' Equity Note [Abstract]
Schedule of Stockholders Equity	A reconciliation of the changes in equity for the three and six months ended June 30, 2022 and 2021 is provided below: Three Months Ended June 30, 2022 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - March 31, 2022 $ 51,200 $ 1,134,688 $ 492,676 $ (46,745) $ 14,702 $ 1,646,521 Net income (loss) — — (63,003) — 983 (62,020) Other comprehensive loss — — — (2,218) (773) (2,991) Share-based compensation — 3,278 — — — 3,278 Issuance of common stock, net 158 — — — — 158 Distributions to noncontrolling interests — — — — (17,000) (17,000) Balance - June 30, 2022 $ 51,358 $ 1,137,966 $ 429,673 $ (48,963) $ (2,088) $ 1,567,946 Six Months Ended June 30, 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) — — (84,637) — 3,804 (80,833) Other comprehensive loss — — — (5,328) (1,152) (6,480) Share-based compensation — 5,002 — — — 5,002 Issuance of common stock, net 262 (186) — — — 76 Contributions from noncontrolling interests — — — — 961 961 Distributions to noncontrolling interests — — — — (24,500) (24,500) Balance - June 30, 2022 $ 51,358 $ 1,137,966 $ 429,673 $ (48,963) $ (2,088) $ 1,567,946 Three Months Ended June 30, 2021 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - March 31, 2021 $ 50,938 $ 1,127,624 $ 438,419 $ (47,356) $ 2,456 $ 1,572,081 Net income — — 31,165 — 10,446 41,611 Other comprehensive income — — — 830 280 1,110 Share-based compensation — 3,171 — — — 3,171 Issuance of common stock, net 134 (427) — — — (293) Distributions to noncontrolling interests — — — — (7,250) (7,250) Balance - June 30, 2021 $ 51,072 $ 1,130,368 $ 469,584 $ (46,526) $ 5,932 $ 1,610,430 Six Months Ended June 30, 2021 (in thousands) Common Additional Retained Accumulated Noncontrolling Total Balance - December 31, 2020 $ 50,827 $ 1,127,385 $ 422,385 $ (46,741) $ (10,911) $ 1,542,945 Net income — — 47,199 — 19,517 66,716 Other comprehensive income — — — 215 576 791 Share-based compensation — 4,757 — — — 4,757 Issuance of common stock, net 245 (1,774) — — — (1,529) Contributions from noncontrolling interests — — — — 4,000 4,000 Distributions to noncontrolling interests — — — — (7,250) (7,250) Balance - June 30, 2021 $ 51,072 $ 1,130,368 $ 469,584 $ (46,526) $ 5,932 $ 1,610,430

Other Comprehensive Income (L_2

Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2022
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 and six months ended June 30, 2022 and 2021 were as follows: Three Months Ended June 30, 2022 Three Months Ended June 30, 2021 (in thousands) Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Before-Tax Amount Tax Expense Net-of-Tax Amount Other comprehensive income (loss): Defined benefit pension plan adjustments $ 638 $ (181) $ 457 $ 683 $ (192) $ 491 Foreign currency translation adjustments (1,698) 308 (1,390) 446 (46) 400 Unrealized gain (loss) in fair value of investments (2,384) 326 (2,058) 303 (84) 219 Total other comprehensive income (loss) (3,444) 453 (2,991) 1,432 (322) 1,110 Less: Other comprehensive income (loss) attributable to noncontrolling interests (773) — (773) 280 — 280 Total other comprehensive income (loss) attributable to Tutor Perini Corporation $ (2,671) $ 453 $ (2,218) $ 1,152 $ (322) $ 830 Six Months Ended June 30, 2022 Six Months Ended June 30, 2021 (in thousands) Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Before-Tax Amount Tax (Expense) Benefit Net-of-Tax Amount Other comprehensive income (loss): Defined benefit pension plan adjustments $ 1,277 $ (362) $ 915 $ 1,366 $ (383) $ 983 Foreign currency translation adjustments (1,442) 309 (1,133) 848 (76) 772 Unrealized loss in fair value of investments (7,898) 1,636 (6,262) (1,247) 283 (964) Total other comprehensive income (loss) (8,063) 1,583 (6,480) 967 (176) 791 Less: Other comprehensive income (loss) attributable to noncontrolling interests (1,152) — (1,152) 576 — 576 Total other comprehensive income (loss) attributable to Tutor Perini Corporation $ (6,911) $ 1,583 $ (5,328) $ 391 $ (176) $ 215
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 and six months ended June 30, 2022 were as follows: Three Months Ended June 30, 2022 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of March 31, 2022 $ (37,408) $ (5,796) $ (3,541) $ (46,745) Other comprehensive loss before reclassifications — (772) (1,927) (2,699) Amounts reclassified from AOCI 457 — 24 481 Total other comprehensive income (loss) 457 (772) (1,903) (2,218) Balance as of June 30, 2022 $ (36,951) $ (6,568) $ (5,444) $ (48,963) Attributable to Noncontrolling Interests: Balance as of March 31, 2022 $ — $ 808 $ (645) $ 163 Other comprehensive loss — (618) (155) (773) Balance as of June 30, 2022 $ — $ 190 $ (800) $ (610) Six Months Ended June 30, 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 — (781) (5,495) (6,276) Amounts reclassified from AOCI 915 — 33 948 Total other comprehensive income (loss) 915 (781) (5,462) (5,328) Balance as of June 30, 2022 $ (36,951) $ (6,568) $ (5,444) $ (48,963) Attributable to Noncontrolling Interests: Balance as of December 31, 2021 $ — $ 542 $ — $ 542 Other comprehensive loss — (352) (800) (1,152) Balance as of June 30, 2022 $ — $ 190 $ (800) $ (610) The changes in AOCI balances by component (after tax) attributable to Tutor Perini Corporation and attributable to noncontrolling interests during the three and six months ended June 30, 2021 were as follows: Three Months Ended June 30, 2021 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of March 31, 2021 $ (43,595) $ (5,246) $ 1,485 $ (47,356) Other comprehensive income before reclassifications — 120 233 353 Amounts reclassified from AOCI 491 — (14) 477 Total other comprehensive income 491 120 219 830 Balance as of June 30, 2021 $ (43,104) $ (5,126) $ 1,704 $ (46,526) Attributable to Noncontrolling Interests: Balance as of March 31, 2021 $ — $ 698 $ — $ 698 Other comprehensive income — 280 — 280 Balance as of June 30, 2021 $ — $ 978 $ — $ 978 Six Months Ended June 30, 2021 (in thousands) Defined Foreign Unrealized Gain (Loss) in Fair Value of Investments, Net Accumulated Attributable to Tutor Perini Corporation: Balance as of December 31, 2020 $ (44,087) $ (5,322) $ 2,668 $ (46,741) Other comprehensive income (loss) before reclassifications — 196 (827) (631) Amounts reclassified from AOCI 983 — (137) 846 Total other comprehensive income (loss) 983 196 (964) 215 Balance as of June 30, 2021 $ (43,104) $ (5,126) $ 1,704 $ (46,526) Attributable to Noncontrolling Interests: Balance as of December 31, 2020 $ — $ 402 $ — $ 402 Other comprehensive income — 576 — 576 Balance as of June 30, 2021 $ — $ 978 $ — $ 978 The significant items reclassified out of AOCI and the corresponding location and impact on the Condensed Consolidated Statements of Operations during the three and six months ended June 30, 2022 and 2021 were as follows: Three Months Ended Six Months Ended (in thousands) 2022 2021 2022 2021 Component of AOCI: Defined benefit pension plan adjustments (a) $ 638 $ 683 $ 1,277 $ 1,366 Income tax benefit (b) (181) (192) (362) (383) Net of tax $ 457 $ 491 $ 915 $ 983 Unrealized (gain) loss in fair value of investment adjustments (a) $ 31 $ (17) $ 42 $ (173) Income tax expense (benefit) (b) (7) 3 (9) 36 Net of tax $ 24 $ (14) $ 33 $ (137) ___________________________________________________________________________________________________ (a) Amount included in other income, net on the Condensed Consolidated Statements of Operations. (b) Amounts included in income tax (expense) benefit on the Condensed Consolidated Statements of Operations.

Business Segments (Tables)

Business Segments (Tables)	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Reportable Segments	The following tables set forth certain reportable segment information relating to the Company’s operations for the three and six months ended June 30, 2022 and 2021: Reportable Segments (in thousands) Civil Building Specialty Total Corporate Consolidated Three Months Ended June 30, 2022 Total revenue $ 453,215 $ 262,556 $ 190,464 $ 906,235 $ — $ 906,235 Elimination of intersegment revenue (49,593) 4,385 — (45,208) — (45,208) Revenue from external customers $ 403,622 $ 266,941 $ 190,464 $ 861,027 $ — $ 861,027 Loss from construction operations $ (9,767) $ (67) $ (66,731) $ (76,565) (a) $ (13,989) (b) $ (90,554) Capital expenditures $ 15,656 $ 50 $ 816 $ 16,522 $ 295 $ 16,817 Depreciation and amortization (c) $ 15,025 $ 390 $ 508 $ 15,923 $ 2,360 $ 18,283 Three Months Ended June 30, 2021 Total revenue $ 643,055 $ 415,801 $ 281,370 $ 1,340,226 $ — $ 1,340,226 Elimination of intersegment revenue (87,703) (33,141) (139) (120,983) — (120,983) Revenue from external customers $ 555,352 $ 382,660 $ 281,231 $ 1,219,243 $ — $ 1,219,243 Income (loss) from construction operations $ 75,073 $ (2,488) $ 9,960 $ 82,545 (d) $ (13,792) (b) $ 68,753 Capital expenditures $ 8,616 $ 51 $ 19 $ 8,686 $ 339 $ 9,025 Depreciation and amortization (c) $ 31,178 $ 424 $ 892 $ 32,494 $ 2,767 $ 35,261 ____________________________________________________________________________________________________ (a) During the three months ended June 30, 2022, the Company’s income (loss) from construction operations was adversely impacted by $33.5 million ($24.2 million, or $0.47 per diluted share, after tax) due to an unfavorable adjustment related to the unforeseen cost of project close-out issues, remediation work, extended project supervision and associated labor inefficiencies on the electrical component of a transportation project in the Northeast in the Specialty Contractors segment, a non-cash charge of $17.8 million that increased cost of operations ($12.8 million, or $0.25 per diluted share, after tax) associated with an unexpected partial reversal by an appellate court of previously awarded legal damages related to a completed electrical project in New York in the Specialty Contractors segment, and a $16.2 million unfavorable non-cash impact ($11.6 million, or $0.23 per diluted share, after tax) related to the settlement of a long-disputed, completed Civil segment project in Maryland. (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 June 30, 2021, the Company recorded a reduction of $20.1 million in cost of operations ($14.6 million, or $0.28 per diluted share, after tax) due to a favorable trial court ruling awarding the Company the recovery of certain costs previously incurred on a completed electrical project in New York in the Specialty Contractors segment. Reportable Segments (in thousands) Civil Building Specialty Total Corporate Consolidated Six Months Ended June 30, 2022 Total revenue $ 913,957 $ 618,534 $ 421,328 $ 1,953,819 $ — $ 1,953,819 Elimination of intersegment revenue (119,540) (20,945) (153) (140,638) — (140,638) Revenue from external customers $ 794,417 $ 597,589 $ 421,175 $ 1,813,181 $ — $ 1,813,181 Income (loss) from construction operations $ (10,734) $ 9,397 $ (70,625) $ (71,962) (a) $ (28,499) (b) $ (100,461) Capital expenditures $ 26,831 $ 52 $ 1,454 $ 28,337 $ 508 $ 28,845 Depreciation and amortization (c) $ 32,025 $ 791 $ 1,010 $ 33,826 $ 4,695 $ 38,521 Six Months Ended June 30, 2021 Total revenue $ 1,226,199 $ 872,971 $ 606,318 $ 2,705,488 $ — $ 2,705,488 Elimination of intersegment revenue (195,272) (83,078) (300) (278,650) — (278,650) Revenue from external customers $ 1,030,927 $ 789,893 $ 606,018 $ 2,426,838 $ — $ 2,426,838 Income (loss) from construction operations $ 125,178 $ 8,728 $ 11,284 $ 145,190 (d) $ (26,733) (b) $ 118,457 Capital expenditures $ 18,180 $ 124 $ 164 $ 18,468 $ 392 $ 18,860 Depreciation and amortization (c) $ 53,891 $ 856 $ 1,851 $ 56,598 $ 5,537 $ 62,135 ____________________________________________________________________________________________________ (a) During the six months ended June 30, 2022, the Company’s income (loss) from construction operations was adversely impacted by $33.5 million ($24.2 million, or $0.47 per diluted share, after tax) due to an unfavorable adjustment related to the unforeseen cost of project close-out issues, remediation work, extended project supervision and associated labor inefficiencies on the electrical component of a transportation project in the Northeast in the Specialty Contractors segment, and $29.1 million ($22.9 million, or $0.45 per diluted share, after tax) on 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. The Company’s income (loss) from construction operations was also impacted by a non-cash charge of $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 Civil segment bridge project in New York, a non-cash charge of $17.8 million that increased cost of operations ($12.8 million, or $0.25 per diluted share, after tax) associated with an unexpected partial reversal by an appellate court of previously awarded legal damages related to a completed electrical project in New York in the Specialty Contractors segment, a $16.2 million unfavorable non-cash impact ($11.6 million, or $0.23 per diluted share, after tax) related to the settlement of a long-disputed, completed Civil segment project in Maryland, and a $14.6 million ($11.2 million, or $0.22 per diluted share, after tax) unfavorable adjustment split evenly between the Civil and Building segments due to changes in estimates on a transportation project in the Northeast. (b) Consists primarily of corporate general and administrative expenses. (c) Depreciation and amortization is included in income (loss) from construction operations. (d) During the six months ended June 30, 2021, the Company recorded a reduction of $20.1 million in cost of operations ($14.6 million, or $0.28 per diluted share, after tax) due to a favorable trial court ruling awarding the Company the recovery of certain costs previously incurred on a completed electrical project in New York in the Specialty Contractors segment.
Reconciliation of Segment Results to Consolidated Income Before Income Taxes	A reconciliation of segment results to the consolidated income (loss) before income taxes is as follows: Three Months Ended June 30, Six Months Ended June 30, (in thousands) 2022 2021 2022 2021 Income (loss) from construction operations $ (90,554) $ 68,753 $ (100,461) $ 118,457 Other income, net 1,020 1,431 4,717 1,606 Interest expense (16,204) (17,938) (32,696) (35,748) Income (loss) before income taxes $ (105,738) $ 52,246 $ (128,440) $ 84,315
Total Assets for Reportable Segments	Total assets by segment were as follows: (in thousands) As of June 30, As of December 31, Civil $ 3,432,649 $ 3,310,648 Building 919,426 980,989 Specialty Contractors 600,332 631,710 Corporate and other (a) (232,724) (198,449) Total assets $ 4,719,683 $ 4,724,898 ____________________________________________________________________________________________________ (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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 861,027	$ 1,219,243	$ 1,813,181	$ 2,426,838
State and local agencies
Disaggregation of Revenue [Line Items]
Revenue	500,701	697,688	1,030,464	1,307,695
Federal agencies
Disaggregation of Revenue [Line Items]
Revenue	108,579	104,326	216,705	227,557
Private owners
Disaggregation of Revenue [Line Items]
Revenue	251,747	417,229	566,012	891,586
Civil
Disaggregation of Revenue [Line Items]
Revenue	403,622	555,352	794,417	1,030,927
Civil | State and local agencies
Disaggregation of Revenue [Line Items]
Revenue	319,411	481,333	633,253	871,835
Civil | Federal agencies
Disaggregation of Revenue [Line Items]
Revenue	62,991	49,335	113,685	100,968
Civil | Private owners
Disaggregation of Revenue [Line Items]
Revenue	21,220	24,684	47,479	58,124
Civil | Mass transit (includes certain transportation and tunneling projects)
Disaggregation of Revenue [Line Items]
Revenue	225,574	366,534	482,712	675,409
Civil | Bridges
Disaggregation of Revenue [Line Items]
Revenue	85,073	65,775	126,320	111,942
Civil | Military defense facilities
Disaggregation of Revenue [Line Items]
Revenue	60,355	44,585	110,149	94,121
Civil | Water
Disaggregation of Revenue [Line Items]
Revenue	22,384	24,800	43,036	51,610
Civil | Other
Disaggregation of Revenue [Line Items]
Revenue	10,236	53,658	32,200	97,845
Building
Disaggregation of Revenue [Line Items]
Revenue	266,941	382,660	597,589	789,893
Building | State and local agencies
Disaggregation of Revenue [Line Items]
Revenue	89,473	92,275	213,163	168,856
Building | Federal agencies
Disaggregation of Revenue [Line Items]
Revenue	42,402	49,287	88,500	99,648
Building | Private owners
Disaggregation of Revenue [Line Items]
Revenue	135,066	241,098	295,926	521,389
Building | Mass transit (includes certain transportation and tunneling projects)
Disaggregation of Revenue [Line Items]
Revenue	10,447	34,344	70,648	60,879
Building | Other
Disaggregation of Revenue [Line Items]
Revenue	17,829	25,995	30,897	55,439
Building | Municipal and government
Disaggregation of Revenue [Line Items]
Revenue	83,826	74,475	159,781	146,384
Building | Hospitality and gaming
Disaggregation of Revenue [Line Items]
Revenue	24,077	86,145	100,995	186,712
Building | Commercial and industrial facilities
Disaggregation of Revenue [Line Items]
Revenue	49,309	101,960	88,395	232,012
Building | Health care facilities
Disaggregation of Revenue [Line Items]
Revenue	50,277	13,598	85,837	24,007
Building | Education facilities
Disaggregation of Revenue [Line Items]
Revenue	31,176	46,143	61,036	84,460
Specialty Contractors
Disaggregation of Revenue [Line Items]
Revenue	190,464	281,231	421,175	606,018
Specialty Contractors | State and local agencies
Disaggregation of Revenue [Line Items]
Revenue	91,817	124,080	184,048	267,004
Specialty Contractors | Federal agencies
Disaggregation of Revenue [Line Items]
Revenue	3,186	5,704	14,520	26,941
Specialty Contractors | Private owners
Disaggregation of Revenue [Line Items]
Revenue	95,461	151,447	222,607	312,073
Specialty Contractors | Mass transit (includes certain transportation and tunneling projects)
Disaggregation of Revenue [Line Items]
Revenue	75,395	148,045	194,422	329,208
Specialty Contractors | Water
Disaggregation of Revenue [Line Items]
Revenue	13,972	17,514	35,419	38,668
Specialty Contractors | Other
Disaggregation of Revenue [Line Items]
Revenue	14,139	29,506	30,556	53,029
Specialty Contractors | Commercial and industrial facilities
Disaggregation of Revenue [Line Items]
Revenue	36,444	36,637	66,301	75,386
Specialty Contractors | Education facilities
Disaggregation of Revenue [Line Items]
Revenue	8,165	18,425	20,441	31,781
Specialty Contractors | Multi-unit residential
Disaggregation of Revenue [Line Items]
Revenue	28,243	30,649	53,181	73,444
Specialty Contractors | Federal government
Disaggregation of Revenue [Line Items]
Revenue	$ 14,106	$ 455	$ 20,855	$ 4,502

Revenue (Schedule Of Revenue By

Revenue (Schedule Of Revenue By Contract Type) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 861,027	$ 1,219,243	$ 1,813,181	$ 2,426,838
Fixed price
Disaggregation of Revenue [Line Items]
Revenue	559,746	802,707	1,198,320	1,599,780
Guaranteed maximum price
Disaggregation of Revenue [Line Items]
Revenue	149,616	250,463	326,751	523,317
Unit price
Disaggregation of Revenue [Line Items]
Revenue	94,274	115,655	159,639	196,796
Cost plus fee and other
Disaggregation of Revenue [Line Items]
Revenue	57,391	50,418	128,471	106,945
Civil
Disaggregation of Revenue [Line Items]
Revenue	403,622	555,352	794,417	1,030,927
Civil | Fixed price
Disaggregation of Revenue [Line Items]
Revenue	337,414	461,068	674,407	880,224
Civil | Guaranteed maximum price
Disaggregation of Revenue [Line Items]
Revenue	301	498	594	1,768
Civil | Unit price
Disaggregation of Revenue [Line Items]
Revenue	72,210	88,516	122,720	141,249
Civil | Cost plus fee and other
Disaggregation of Revenue [Line Items]
Revenue	(6,303)	5,270	(3,304)	7,686
Building
Disaggregation of Revenue [Line Items]
Revenue	266,941	382,660	597,589	789,893
Building | Fixed price
Disaggregation of Revenue [Line Items]
Revenue	64,296	95,349	166,814	179,798
Building | Guaranteed maximum price
Disaggregation of Revenue [Line Items]
Revenue	145,954	247,402	317,463	517,856
Building | Unit price
Disaggregation of Revenue [Line Items]
Revenue	0	(1,564)	33	(1,453)
Building | Cost plus fee and other
Disaggregation of Revenue [Line Items]
Revenue	56,691	41,473	113,279	93,692
Specialty Contractors
Disaggregation of Revenue [Line Items]
Revenue	190,464	281,231	421,175	606,018
Specialty Contractors | Fixed price
Disaggregation of Revenue [Line Items]
Revenue	158,036	246,290	357,099	539,758
Specialty Contractors | Guaranteed maximum price
Disaggregation of Revenue [Line Items]
Revenue	3,361	2,563	8,694	3,693
Specialty Contractors | Unit price
Disaggregation of Revenue [Line Items]
Revenue	22,064	28,703	36,886	57,000
Specialty Contractors | Cost plus fee and other
Disaggregation of Revenue [Line Items]
Revenue	$ 7,003	$ 3,675	$ 18,496	$ 5,567

Revenue (Narrative) (Details)

Revenue (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Net revenue recognized related to performance obligations satisfies (or partially satisfied) in prior periods	$ 63.6	$ 8.9	$ 110.3	$ 29
Civil
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue amount	4,900	4,300	$ 4,900	4,300
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	1,500	$ 2,200	1,500
Specialty Contractors
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations revenue amount	$ 1,300	$ 1,500	$ 1,300	$ 1,500
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 (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Retainage receivable estimated by management to be collected beyond one year, percentage	48%		48%
Capitalized contract costs amortized and recognized as expense	$ 19	$ 13.4	$ 31.6	$ 25.3
Retainage payable estimated by management to be remitted beyond one year, percentage	42%		42%
Liability revenue recognized from contract with customer	$ 387.5	$ 321	$ 425.5	$ 458.8

Contract Assets and Liabiliti_4

Contract Assets and Liabilities (Schedule Of Contract Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Retention receivable	$ 552,695	$ 568,881
Costs and estimated earnings in excess of billings:
Claims	764,430	833,352
Unapproved change orders	515,851	418,054
Other unbilled costs and profits	92,359	105,362
Total costs and estimated earnings in excess of billings	1,372,640	1,356,768
Capitalized contract costs	70,400	69,027
Total contract assets	$ 1,995,735	$ 1,994,676

Contract Assets and Liabiliti_5

Contract Assets and Liabilities (Schedule of Contract Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Abstract]
Retainage payable	$ 227,725	$ 268,945
Billings in excess of costs and estimated earnings	956,735	761,689
Total contract liabilities	$ 1,184,460	$ 1,030,634

Cash, Cash Equivalents and Re_3

Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 309,267	$ 202,197
Restricted cash	4,485	9,199
Total cash, cash equivalents and restricted cash	313,752	211,396	$ 234,013	$ 451,852
Joint venture cash and cash equivalents
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	224,165	142,005
Cash and cash equivalents available for general corporate purposes
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 85,102	$ 60,192

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net income (loss) attributable to Tutor Perini Corporation	$ (63,003)	$ 31,165	$ (84,637)	$ 47,199
Weighted-average common shares outstanding, basic (in shares)	51,276	50,999	51,192	50,956
Effect of dilutive restricted stock units and stock options (in shares)	0	376	0	406
Weighted-average common shares outstanding, diluted (in shares)	51,276	51,375	51,192	51,362
Net income (loss) attributable to Tutor Perini Corporation per common share: Basic (in dollars per share)	$ (1.23)	$ 0.61	$ (1.65)	$ 0.93
Net income (loss) attributable to Tutor Perini Corporation per common share: Diluted (in dollars per share)	$ (1.23)	$ 0.61	$ (1.65)	$ 0.92
Anti-dilutive securities not included above (in shares)	3,398	1,810	3,415	1,725

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Effective tax rate	41.30%	20.40%	37.10%	20.90%
Income tax (expense) benefit	$ 43,718	$ (10,635)	$ 47,607	$ (17,599)

Goodwill And Intangible Asset_2

Goodwill And Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment charge		$ 0
Amortization expense	$ 4,700,000		$ 10,700,000	$ 10,177,000	$ 17,314,000
Estimated amortization expense, remainder of 2022	4,300,000			4,300,000
Estimated amortization expense, 2023	2,200,000			2,200,000
Estimated amortization expense, 2024	2,200,000			2,200,000
Estimated amortization expense, 2025	2,200,000			2,200,000
Estimated amortization expense, 2026	2,200,000			2,200,000
Estimated amortization expense, 2027	2,200,000			2,200,000
Estimated amortization expense, after year 2027	$ 9,200,000			$ 9,200,000

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Gross goodwill as of December 31, 2021		$ 1,072,991
Accumulated impairment as of December 31, 2021		(867,848)
Balance at beginning of period	$ 205,143
Current year activity	0
Balance at end of period	205,143
Civil
Goodwill [Roll Forward]
Gross goodwill as of December 31, 2021		492,074
Accumulated impairment as of December 31, 2021		(286,931)
Balance at beginning of period	205,143
Current year activity	0
Balance at end of period	205,143
Building
Goodwill [Roll Forward]
Gross goodwill as of December 31, 2021		424,724
Accumulated impairment as of December 31, 2021		(424,724)
Balance at beginning of period	0
Current year activity	0
Balance at end of period	0
Specialty Contractors
Goodwill [Roll Forward]
Gross goodwill as of December 31, 2021		156,193
Accumulated impairment as of December 31, 2021		$ (156,193)
Balance at beginning of period	0
Current year activity	0
Balance at end of period	$ 0

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Total intangible assets
Cost	$ 381,940	$ 381,940
Accumulated Amortization	(193,982)	(183,805)
Accumulated Impairment Charge	(113,067)	(113,067)
Carrying Value	74,891	85,068
Trade Names
Finite-Lived intangible assets
Cost	69,250	69,250
Accumulated Amortization	(24,767)	(23,650)
Accumulated Impairment Charge	(23,232)	(23,232)
Carrying Value	$ 21,251	$ 22,368
Weighted-Average Amortization Period	20 years	20 years
Customer relationships
Finite-Lived intangible assets
Cost	$ 39,800	$ 39,800
Accumulated Amortization	(23,155)	(23,053)
Accumulated Impairment Charge	(16,645)	(16,645)
Carrying Value	0	$ 102
Weighted-Average Amortization Period		12 years
Construction contract backlog
Finite-Lived intangible assets
Cost	149,290	$ 149,290
Accumulated Amortization	(146,060)	(137,102)
Carrying Value	$ 3,230	$ 12,188
Weighted-Average Amortization Period	3 years	3 years
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)

Financial Commitments (Narrativ

Financial Commitments (Narrative) (Details) - USD ($)		6 Months Ended
	Aug. 18, 2020	Jun. 30, 2022	Dec. 31, 2021	Jun. 15, 2021	Apr. 20, 2017	Jun. 15, 2016
BMO Harris Bank
Debt Instrument [Line Items]
Applicable margin on overdue amounts (as a percent)	2%
First Lien | BMO Harris Bank
Debt Instrument [Line Items]
Net leverage ratio (maximum)	1.35
2020 Revolver | BMO Harris Bank
Debt Instrument [Line Items]
Net leverage ratio (maximum)	2.75	2.25
Weighted-average annual interest rate on borrowings		6.91%
Remaining borrowing capacity		$ 175,000,000
Line of Credit | 2020 Credit Agreement | BMO Harris Bank
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 425,000,000
Periodic payment principal percentage	0.25%
Unsecured Debt | BMO Harris Bank
Debt Instrument [Line Items]
Total net leverage ratio (maximum)	3.50
Fixed charge coverage ratio (maximum)	2
Convertible Notes
Debt Instrument [Line Items]
Current principal amount				$ 69,900,000
Interest rate						2.875%
Senior Notes | 2017 Senior Notes
Debt Instrument [Line Items]
Current principal amount		$ 500,000,000	$ 500,000,000
Senior Notes | Private Placement | 2017 Senior Notes
Debt Instrument [Line Items]
Interest rate					6.875%
Face amount					$ 500,000,000
Redemption price, change of control triggering event (as a percent)		101%
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 Revolver
Debt Instrument [Line Items]
Unamortized debt issuance costs		$ 1,800,000	$ 2,100,000
Revolving Credit Facility | Line of Credit | 2020 Credit Agreement | BMO Harris Bank
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 175,000,000
Letters of Credit | Line of Credit | 2020 Credit Agreement | BMO Harris Bank
Debt Instrument [Line Items]
Maximum borrowing capacity	75,000,000
Bridge Loan | Line of Credit | 2020 Credit Agreement | BMO Harris Bank
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 10,000,000
Secured Debt | Junior Lien | BMO Harris Bank
Debt Instrument [Line Items]
Total net leverage ratio (maximum)	3.50
Federal Funds Rate | 2020 Credit Agreement | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
LIBOR | 2020 Credit Agreement | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	1%
LIBOR | Term Loan B | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	4.75%
LIBOR | 2020 Revolver | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	4.75%
LIBOR | Minimum | Term Loan B | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	4.50%
LIBOR | Minimum | 2020 Revolver | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	4.25%
LIBOR | Maximum | Term Loan B | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	4.75%
LIBOR | Maximum | 2020 Revolver | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	4.75%
Base Rate | Term Loan B | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	3.75%
Base Rate | 2020 Revolver | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	3.75%
Base Rate | Minimum | Term Loan B | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	3.50%
Base Rate | Minimum | 2020 Revolver | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Base Rate | Maximum | Term Loan B | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	3.75%
Base Rate | Maximum | 2020 Revolver | BMO Harris Bank
Debt Instrument [Line Items]
Basis spread on variable rate	3.75%

Financial Commitments (Long-Ter

Financial Commitments (Long-Term Debt) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total debt	$ 968,308	$ 993,654
Less: Current maturities	30,565	24,406
Long-term debt, net	937,743	969,248
Term Loan B
Debt Instrument [Line Items]
Total debt	405,231	406,335
Equipment financing and mortgages
Debt Instrument [Line Items]
Total debt	53,409	56,246
Other indebtedness
Debt Instrument [Line Items]
Total debt	12,911	7,829
2017 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Total debt	496,757	496,244
2020 Revolver
Debt Instrument [Line Items]
Total debt	$ 0	$ 27,000

Financial Commitments (Reconcil

Financial Commitments (Reconciliation of Outstanding Debt Balance to Reported Debt Balance) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total debt	$ 968,308	$ 993,654
Term Loan B
Debt Instrument [Line Items]
Outstanding Debt	417,563	419,688
Unamortized Discounts and Issuance Costs	(12,332)	(13,353)
Total debt	405,231	406,335
2017 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Outstanding Debt	500,000	500,000
Unamortized Discounts and Issuance Costs	(3,243)	(3,756)
Total debt	$ 496,757	$ 496,244

Financial Commitments (Summary

Financial Commitments (Summary of Interest Expense as Reported in the Consolidated Statements of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Debt Instrument [Line Items]
Other interest	$ 479	$ 409	$ 940	$ 890
Total cash interest expense	15,288	16,087	30,879	31,880
Non-cash interest expense			1,817	3,868
Total non-cash interest expense	916	1,851	1,817	3,868
Total interest expense	16,204	17,938	32,696	35,748
Term Loan B
Debt Instrument [Line Items]
Cash interest expense	6,085	6,115	12,118	12,209
Non-cash interest expense	$ 516	527	$ 1,021	1,066
Effective interest rates	6.43%		6.43%
Convertible Notes
Debt Instrument [Line Items]
Cash interest expense		418		921
Non-cash interest expense		941		2,040
2017 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Cash interest expense	$ 8,594	8,593	$ 17,188	17,187
Non-cash interest expense	$ 259	241	$ 513	478
Effective interest rates	7.13%		7.13%
2020 Revolver
Debt Instrument [Line Items]
Cash interest expense	$ 130	552	$ 633	673
Non-cash interest expense	$ 141	$ 142	$ 283	$ 284

Leases (Narrative) (Details)

Leases (Narrative) (Details)	Jun. 30, 2022
Minimum
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease terms	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease, remaining lease terms	16 years

Leases (Components Of Lease Exp

Leases (Components Of Lease Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 3,912	$ 3,707	$ 8,069	$ 7,425
Short-term lease expense	12,991	18,301	27,435	39,426
Lease expense, gross	16,903	22,008	35,504	46,851
Less: Sublease income	190	176	380	346
Total lease expense	$ 16,713	$ 21,832	$ 35,124	$ 46,505
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	Jun. 30, 2022	Dec. 31, 2021
ASSETS
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	OTHER ASSETS	OTHER ASSETS
Right-of-use assets	$ 56,018	$ 53,462
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	$ 7,420	$ 7,481
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Long-term lease liabilities	$ 53,025	$ 50,057
Total lease liabilities	$ 60,445	$ 57,538
Weighted-average remaining lease term	11 years 9 months 18 days	12 years
Weighted-average discount rate	9.35%	9.44%

Leases (Supplemental Cash Flow

Leases (Supplemental Cash Flow And Other Information Related To Leases) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ (7,717)	$ (6,855)
Right-of-use assets obtained in exchange for lease liabilities	$ 7,887	$ 5,780

Leases (Maturity Of Leases Liab

Leases (Maturity Of Leases Liabilities On An Undiscounted Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Leases [Abstract]
2022 (excluding the six months ended June 30, 2022)	$ 6,409
2023	11,255
2024	8,776
2025	7,869
2026	6,489
Thereafter	65,120
Total lease payments	105,918
Less: Imputed interest	45,473
Total	$ 60,445	$ 57,538

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Millions				1 Months Ended			3 Months Ended	6 Months Ended
	Dec. 13, 2019	Jun. 04, 2019	Feb. 26, 2015	Mar. 31, 2016	Jun. 30, 2015	Aug. 31, 2013	Dec. 31, 2019	Jun. 30, 2022	Jul. 02, 2018	Mar. 31, 2018
STP
Contingencies and Commitments
Ownership percentage in joint venture								45%
Alaskan Way Viaduct Matter
Contingencies and Commitments
Ownership percentage in joint venture								45%
Value of claim filed				$ 57.2	$ 532
Value of counterclaim filed				$ 667
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
George Washington Bridge Bus Station Matter
Contingencies and Commitments
Value of claim filed			$ 30
Value of project						$ 100
Value of counterclaim filed in excess of										$ 113
Court issued writ of attachment amount		$ 23
Proof of claim amount	$ 113
Value of damages seeking									$ 113
Return Of Retainage By Developer | George Washington Bridge Bus Station Matter
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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future grant (in shares)	1,270,316		1,270,316
Stock options expired (in shares)			500,000
Weighted-average exercise prices, expired (in dollars per share)			$ 11.15
Cash used to settle liabilities			$ 2.6	$ 0.3
Costs for share-based payment arrangements	$ 1.4	$ 2.6	4.8	$ 5
Unamortized share-based compensation expense	18.8		$ 18.8
Weighted average period over which unrecognized compensation cost is expected to be recognized			2 years 1 month 6 days
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			375,769	280,000
Weighted-average fair values per share (in dollars per share)			$ 10.53	$ 18.59
Unrestricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			165,030	96,668
Weighted-average fair values per share (in dollars per share)			$ 10.63	$ 15.62
Cash-settled Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			315,768
Weighted-average fair values per share (in dollars per share)			$ 14.89
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		$ 3.4		$ 4.8

Employee Pension Plans (Narrati

Employee Pension Plans (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Pension Plan Assets
Company contribution	$ 1

Employee Pension Plans (Summary

Employee Pension Plans (Summary Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Summary of net periodic benefit cost
Interest cost	$ 647	$ 582	$ 1,293	$ 1,164
Service cost	240	237	480	473
Expected return on plan assets	(973)	(1,015)	(1,946)	(2,030)
Recognized net actuarial losses	638	683	1,277	1,366
Net periodic benefit cost	$ 552	$ 487	$ 1,104	$ 973

Fair Value Measurements (Assets

Fair Value Measurements (Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Assets:
Cash and cash equivalents maturity period (maximum)	3 months
Fair value measured on a recurring basis
Assets:
Cash and cash equivalents	$ 309,267	$ 202,197
Restricted cash	4,485	9,199
Restricted investments	84,498	84,355
Investments in lieu of retainage	78,512	86,328
Total	476,762	382,079
Fair value measured on a recurring basis | Level 1
Assets:
Cash and cash equivalents	309,267	202,197
Restricted cash	4,485	9,199
Restricted investments	0	0
Investments in lieu of retainage	16,102	27,472
Total	329,854	238,868
Fair value measured on a recurring basis | Level 2
Assets:
Cash and cash equivalents	0	0
Restricted cash	0	0
Restricted investments	84,498	84,355
Investments in lieu of retainage	62,410	58,856
Total	146,908	143,211
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	16,100	27,500
Debt Securities | Fair value measured on a recurring basis | Level 1
Assets:
Investments in lieu of retainage	$ 62,400	$ 58,900

Fair Value Measurements (Availa

Fair Value Measurements (Available for Sale) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	$ 154,679	$ 143,084
Unrealized Gains	221	1,523
Unrealized Losses	(7,992)	(1,396)
Fair Value	146,908	143,211
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	116,874	83,656
Less than 12 Months, Unrealized Losses	(6,428)	(1,308)
12 Months or Greater, Fair Value	17,541	2,652
12 Months or Greater, Unrealized Losses	(1,564)	(88)
Total, Fair Value	134,415	86,308
Total, Unrealized Losses	(7,992)	(1,396)
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Amortized Cost, Due within one year	22,628
Fair Value, Due within one year	22,529
Amortized Cost, Due after one year through five years	121,155
Fair Value, Due after one year through five years	114,512
Amortized Cost, Due after five years	10,896
Fair Value, Due after five years	9,867
Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	89,263	84,011
Unrealized Gains	24	999
Unrealized Losses	(4,789)	(655)
Fair Value	84,498	84,355
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	61,268	37,170
Less than 12 Months, Unrealized Losses	(3,312)	(572)
12 Months or Greater, Fair Value	15,194	1,938
12 Months or Greater, Unrealized Losses	(1,477)	(83)
Total, Fair Value	76,462	39,108
Total, Unrealized Losses	(4,789)	(655)
Investments in lieu of retention:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	65,416	59,073
Unrealized Gains	197	524
Unrealized Losses	(3,203)	(741)
Fair Value	62,410	58,856
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	55,606	46,486
Less than 12 Months, Unrealized Losses	(3,116)	(736)
12 Months or Greater, Fair Value	2,347	714
12 Months or Greater, Unrealized Losses	(87)	(5)
Total, Fair Value	57,953	47,200
Total, Unrealized Losses	(3,203)	(741)
Corporate debt securities | Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	50,971	46,649
Unrealized Gains	22	438
Unrealized Losses	(2,758)	(438)
Fair Value	48,235	46,649
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	32,447	28,639
Less than 12 Months, Unrealized Losses	(1,911)	(434)
12 Months or Greater, Fair Value	9,058	207
12 Months or Greater, Unrealized Losses	(847)	(4)
Total, Fair Value	41,505	28,846
Total, Unrealized Losses	(2,758)	(438)
Corporate debt securities | Investments in lieu of retention:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	64,601	58,261
Unrealized Gains	8	72
Unrealized Losses	(3,203)	(741)
Fair Value	61,406	57,592
U.S. government agency securities | Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	28,346	28,316
Unrealized Gains	2	459
Unrealized Losses	(1,063)	(133)
Fair Value	27,285	28,642
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	21,624	5,382
Less than 12 Months, Unrealized Losses	(666)	(97)
12 Months or Greater, Fair Value	4,462	824
12 Months or Greater, Unrealized Losses	(397)	(36)
Total, Fair Value	26,086	6,206
Total, Unrealized Losses	(1,063)	(133)
Municipal bonds | Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	9,380	8,475
Unrealized Gains	0	100
Unrealized Losses	(926)	(78)
Fair Value	8,454	8,497
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	6,843	2,714
Less than 12 Months, Unrealized Losses	(709)	(35)
12 Months or Greater, Fair Value	1,559	907
12 Months or Greater, Unrealized Losses	(217)	(43)
Total, Fair Value	8,402	3,621
Total, Unrealized Losses	(926)	(78)
Municipal bonds | Investments in lieu of retention:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	815	812
Unrealized Gains	189	452
Unrealized Losses	0	0
Fair Value	1,004	1,264
Corporate certificates of deposit | Restricted investments:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	566	571
Unrealized Gains	0	2
Unrealized Losses	(42)	(6)
Fair Value	524	567
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 Months, Fair Value	354	435
Less than 12 Months, Unrealized Losses	(26)	(6)
12 Months or Greater, Fair Value	115	0
12 Months or Greater, Unrealized Losses	(16)	0
Total, Fair Value	469	435
Total, Unrealized Losses	$ (42)	$ (6)

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Senior Notes | 2017 Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 410	$ 504.9
Term Loan B
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 389.4	$ 419.7

Variable Interest Entities (Det

Variable Interest Entities (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Variable Interest Entity [Line Items]
Assets, current	$ 3,868,483,000		$ 3,868,483,000		$ 3,862,492,000
Liabilities, current	1,963,321,000		1,963,321,000		1,777,113,000
Revenue	$ 861,027,000	$ 1,219,243,000	$ 1,813,181,000	$ 2,426,838,000
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			$ 2,800,000,000
O&G | Purple Line Extension Section 2 And Section 3
Variable Interest Entity [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners	25%		25%
Joint Venture With Parsons | Newark Airport Terminal One Design Build Project
Variable Interest Entity [Line Items]
Revenue			$ 1,400,000,000
Parsons Corporation | Newark Airport Terminal One Design Build Project
Variable Interest Entity [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners	20%		20%
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Assets, current	$ 400,000		$ 400,000		700,000
Liabilities, current	0		0		400,000
VIEs
Variable Interest Entity [Line Items]
Assets, current	558,400,000		558,400,000		568,200,000
Liabilities, current	576,100,000		576,100,000		496,900,000
Assets, noncurrent	$ 14,400,000		$ 14,400,000		$ 3,000,000

Changes in Equity (Details)

Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	$ 1,646,521	$ 1,572,081	$ 1,673,720	$ 1,542,945
Net income (loss)	(62,020)	41,611	(80,833)	66,716
Other comprehensive income (loss)	(2,991)	1,110	(6,480)	791
Share-based compensation	3,278	3,171	5,002	4,757
Issuance of common stock, net	158	(293)	76	(1,529)
Contributions from noncontrolling interests			961	4,000
Distributions to noncontrolling interests	(17,000)	(7,250)	(24,500)	(7,250)
Balance at the end of the period	1,567,946	1,610,430	1,567,946	1,610,430
Common Stock
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	51,200	50,938	51,096	50,827
Issuance of common stock, net	158	134	262	245
Balance at the end of the period	51,358	51,072	51,358	51,072
Additional Paid-in Capital
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	1,134,688	1,127,624	1,133,150	1,127,385
Share-based compensation	3,278	3,171	5,002	4,757
Issuance of common stock, net		(427)	(186)	(1,774)
Balance at the end of the period	1,137,966	1,130,368	1,137,966	1,130,368
Retained Earnings
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	492,676	438,419	514,310	422,385
Net income (loss)	(63,003)	31,165	(84,637)	47,199
Balance at the end of the period	429,673	469,584	429,673	469,584
Accumulated Other Comprehensive Loss
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(46,745)	(47,356)	(43,635)	(46,741)
Other comprehensive income (loss)	(2,218)	830	(5,328)	215
Balance at the end of the period	(48,963)	(46,526)	(48,963)	(46,526)
Noncontrolling Interests
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	14,702	2,456	18,799	(10,911)
Net income (loss)	983	10,446	3,804	19,517
Other comprehensive income (loss)	(773)	280	(1,152)	576
Contributions from noncontrolling interests			961	4,000
Distributions to noncontrolling interests	(17,000)	(7,250)	(24,500)	(7,250)
Balance at the end of the period	$ (2,088)	$ 5,932	$ (2,088)	$ 5,932

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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Defined benefit pension plan adjustments, Before-Tax Amount	$ 638	$ 683	$ 1,277	$ 1,366
Defined benefit pension plan adjustments, Tax (Expense) Benefit	(181)	(192)	(362)	(383)
Defined benefit pension plan adjustments, Net-of-Tax Amount	457	491	915	983
Foreign currency translation adjustment, Before-Tax Amount	(1,698)	446	(1,442)	848
Foreign currency translation adjustment, Tax (Expense) Benefit	308	(46)	309	(76)
Foreign currency translation adjustment, Net-of-Tax Amount	(1,390)	400	(1,133)	772
Unrealized gain (loss) in fair value of investments, Before-Tax Amount	(2,384)	303	(7,898)	(1,247)
Unrealized gain (loss) in fair value of investments, Tax (Expense) Benefit	326	(84)	1,636	283
Unrealized gain (loss) in fair value of investments, Net-of-Tax Amount	(2,058)	219	(6,262)	(964)
Total other comprehensive income (loss), Before-Tax Amount	(3,444)	1,432	(8,063)	967
Total other comprehensive income (loss), Tax Benefit (Expense)	453	(322)	1,583	(176)
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	(2,991)	1,110	(6,480)	791
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Before-Tax Amount	(773)	280	(1,152)	576
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Tax (Expense) Benefit	0	0	0	0
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Net-of-Tax Amount	(773)	280	(1,152)	576
Total other comprehensive income (loss) attributable to Tutor Perini Corporation, Before-Tax Amount	(2,671)	1,152	(6,911)	391
Total other comprehensive income (loss) attributable to Tutor Perini Corporation, Tax (Expense) Benefit	453	(322)	1,583	(176)
Total other comprehensive income (loss)	$ (2,218)	$ 830	$ (5,328)	$ 215

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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period			$ 1,654,921
Balance at the beginning of the period, noncontrolling interests			18,799
Other comprehensive income (loss) before reclassifications	$ (2,699)	$ 353	(6,276)	$ (631)
Amounts reclassified from AOCI	481	477	948	846
Total other comprehensive income (loss)	(2,218)	830	(5,328)	215
Other comprehensive income (loss) attributable to noncontrolling interests	(773)	280	(1,152)	576
Balance at the end of the period, noncontrolling interests	(2,088)		(2,088)
Balance at the end of the period	1,570,034		1,570,034
Defined Benefit Pension Plan
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(37,408)	(43,595)	(37,866)	(44,087)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from AOCI	457	491	915	983
Total other comprehensive income (loss)	457	491	915	983
Balance at the end of the period	(36,951)	(43,104)	(36,951)	(43,104)
Foreign Currency Translation
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(5,796)	(5,246)	(5,787)	(5,322)
Other comprehensive income (loss) before reclassifications	(772)	120	(781)	196
Amounts reclassified from AOCI	0	0	0	0
Total other comprehensive income (loss)	(772)	120	(781)	196
Balance at the end of the period	(6,568)	(5,126)	(6,568)	(5,126)
Unrealized Gain (Loss) in Fair Value of Investments, Net
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(3,541)	1,485	18	2,668
Other comprehensive income (loss) before reclassifications	(1,927)	233	(5,495)	(827)
Amounts reclassified from AOCI	24	(14)	33	(137)
Total other comprehensive income (loss)	(1,903)	219	(5,462)	(964)
Balance at the end of the period	(5,444)	1,704	(5,444)	1,704
Accumulated Other Comprehensive Income (Loss)
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period	(46,745)	(47,356)	(43,635)	(46,741)
Balance at the end of the period	(48,963)	(46,526)	(48,963)	(46,526)
AOCI Attributable to Noncontrolling Interest
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period, noncontrolling interests	163	698	542	402
Balance at the end of the period, noncontrolling interests	(610)	978	(610)	978
Defined Benefit Pension Plan
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period, noncontrolling interests	0	0	0	0
Other comprehensive income (loss) attributable to noncontrolling interests	0	0	0	0
Balance at the end of the period, noncontrolling interests	0	0	0	0
Foreign Currency Translation
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period, noncontrolling interests	808	698	542	402
Other comprehensive income (loss) attributable to noncontrolling interests	(618)	280	(352)	576
Balance at the end of the period, noncontrolling interests	190	978	190	978
Unrealized Gain (Loss) in Fair Value of Investments, Net
Attributable to Tutor Perini Corporation:
Balance at the beginning of the period, noncontrolling interests	(645)	0	0	0
Other comprehensive income (loss) attributable to noncontrolling interests	(155)	0	(800)	0
Balance at the end of the period, noncontrolling interests	$ (800)	$ 0	$ (800)	$ 0

Other Comprehensive Income (L_5

Other Comprehensive Income (Loss) (AOCI Reclassifications) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	$ (1,020)	$ (1,431)	$ (4,717)	$ (1,606)
Income tax expense (benefit)	(43,718)	10,635	(47,607)	17,599
Net income (loss) attributable to Tutor Perini Corporation	63,003	(31,165)	84,637	(47,199)
Defined Benefit Pension Plan | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	638	683	1,277	1,366
Income tax expense (benefit)	(181)	(192)	(362)	(383)
Net income (loss) attributable to Tutor Perini Corporation	457	491	915	983
Unrealized (gain) loss in fair value of investment adjustments | Reclassification out of Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other income, net	31	(17)	42	(173)
Income tax expense (benefit)	(7)	3	(9)	36
Net income (loss) attributable to Tutor Perini Corporation	$ 24	$ (14)	$ 33	$ (137)

Business Segments (Narrative) (

Business Segments (Narrative) (Details)	6 Months Ended
	Jun. 30, 2022 segment
Segment Reporting [Abstract]
Number of reportable segments	3

Business Segments (Reportable S

Business Segments (Reportable Segments) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 861,027	$ 1,219,243	$ 1,813,181	$ 2,426,838
Loss from construction operations	(90,554)	68,753	(100,461)	118,457
Capital expenditures	16,817	9,025	28,845	18,860
Depreciation and amortization	18,283	35,261	38,521	62,135
Operating Segments
Segment Reporting Information [Line Items]
Revenue	906,235	1,340,226	1,953,819	2,705,488
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	(45,208)	(120,983)	(140,638)	(278,650)
Corporate
Segment Reporting Information [Line Items]
Revenue	0
Loss from construction operations	(13,989)	(13,792)	(28,499)	(26,733)
Capital expenditures	295	339	508	392
Depreciation and amortization	2,360	2,767	4,695	5,537
Civil
Segment Reporting Information [Line Items]
Revenue	403,622	555,352	794,417	1,030,927
Civil | Unfavorable Settlement due to Project in Maryland
Segment Reporting Information [Line Items]
Loss contingency	(16,200)		(16,200)
Loss contingency, after tax	$ (11,600)		$ (11,600)
Loss contingency, after tax, diluted (in dollars per share)	$ (0.23)		$ (0.23)
Civil | Adverse Legal Ruling Pertaining to Bridge Project in the Northeast
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 | Unfavorable Legal Ruling Pertaining To Mass-Transit Project In California
Segment Reporting Information [Line Items]
Loss contingency			$ (29,100)
Loss contingency, after tax			$ (22,900)
Loss contingency, after tax, diluted (in dollars per share)			$ (0.45)
Civil | Operating Segments
Segment Reporting Information [Line Items]
Revenue	$ 453,215	643,055	$ 913,957	1,226,199
Loss from construction operations	(9,767)	75,073	(10,734)	125,178
Capital expenditures	15,656	8,616	26,831	18,180
Depreciation and amortization	15,025	31,178	32,025	53,891
Civil | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	(49,593)	(87,703)	(119,540)	(195,272)
Building
Segment Reporting Information [Line Items]
Revenue	266,941	382,660	597,589	789,893
Building | Operating Segments
Segment Reporting Information [Line Items]
Revenue	262,556	415,801	618,534	872,971
Loss from construction operations	(67)	(2,488)	9,397	8,728
Capital expenditures	50	51	52	124
Depreciation and amortization	390	424	791	856
Building | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	4,385	(33,141)	(20,945)	(83,078)
Specialty Contractors
Segment Reporting Information [Line Items]
Revenue	190,464	$ 281,231	421,175	606,018
Specialty Contractors | Unfavorable Adjustment due to Electrical Project in the Northeast
Segment Reporting Information [Line Items]
Loss contingency	(33,500)		(33,500)
Loss contingency, after tax	$ (24,200)		$ (24,200)
Loss contingency, after tax, diluted (in dollars per share)	$ (0.47)		$ (0.47)
Specialty Contractors | Unfavorable Legal Appeal due to Electrical Project in the Northeast
Segment Reporting Information [Line Items]
Loss contingency	$ (17,800)		$ (17,800)
Loss contingency, after tax	$ (12,800)		$ (12,800)
Loss contingency, after tax, diluted (in dollars per share)	$ (0.25)		$ (0.25)
Specialty Contractors | Favorable Legal Ruling Pertaining to Electrical Project in New York
Segment Reporting Information [Line Items]
Loss contingency, after tax, diluted (in dollars per share)		$ (0.28)
Favorable arbitration		$ (20,100)		20,100
Favorable arbitration, after tax		(14,600)		$ 14,600
Favorable arbitration, after tax, diluted (in dollars per share)				$ 0.28
Specialty Contractors | Operating Segments
Segment Reporting Information [Line Items]
Revenue	$ 190,464	281,370	$ 421,328	$ 606,318
Loss from construction operations	(66,731)	9,960	(70,625)	11,284
Capital expenditures	816	19	1,454	164
Depreciation and amortization	508	892	1,010	1,851
Specialty Contractors | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	0	(139)	(153)	(300)
Total
Segment Reporting Information [Line Items]
Revenue	861,027	1,219,243	1,813,181	2,426,838
Total | Operating Segments
Segment Reporting Information [Line Items]
Revenue	906,235	1,340,226	1,953,819	2,705,488
Loss from construction operations	(76,565)	82,545	(71,962)	145,190
Capital expenditures	16,522	8,686	28,337	18,468
Depreciation and amortization	15,923	32,494	33,826	56,598
Total | Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenue	$ (45,208)	$ (120,983)	(140,638)	$ (278,650)
Civil and Building | Unfavorable Adjustment due to Changes in Estimates on Transportation Project in the Northeast
Segment Reporting Information [Line Items]
Loss contingency			(14,600)
Loss contingency, after tax			$ (11,200)
Loss contingency, after tax, diluted (in dollars per share)			$ (0.22)

Business Segments (Reconciliati

Business Segments (Reconciliation Of Segment Results To Consolidated Income Before Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting [Abstract]
Income (loss) from construction operations	$ (90,554)	$ 68,753	$ (100,461)	$ 118,457
Other income, net	1,020	1,431	4,717	1,606
Interest expense	(16,204)	(17,938)	(32,696)	(35,748)
Income (loss) before income taxes	$ (105,738)	$ 52,246	$ (128,440)	$ 84,315

Business Segments (Total Assets

Business Segments (Total Assets For Reportable Segments) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Assets	$ 4,719,683	$ 4,724,898
Corporate and other
Segment Reporting Information [Line Items]
Assets	(232,724)	(198,449)
Civil | Operating Segments
Segment Reporting Information [Line Items]
Assets	3,432,649	3,310,648
Building | Operating Segments
Segment Reporting Information [Line Items]
Assets	919,426	980,989
Specialty Contractors | Operating Segments
Segment Reporting Information [Line Items]
Assets	$ 600,332	$ 631,710