Detail of Certain Accounts (Tables)

9 Months Ended

Sep. 30, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Amounts related to cash and cash equivalents held by consolidated or proportionately consolidated joint ventures and the captive insurance company, which are included in Quanta’s total cash and cash equivalents balances, were as follows (in thousands):


	September 30, 2026		December 31, 2025
Cash and cash equivalents held by domestic joint ventures	$	148,040	$	63,620
Cash and cash equivalents held by foreign joint ventures	19,634		10,639
Total cash and cash equivalents held by joint ventures	167,674		74,259
Cash and cash equivalents held by captive insurance company	11,344		19,595
Cash and cash equivalents not held by joint ventures or captive insurance company	2,136,253		345,654
Total cash and cash equivalents	$	2,315,271	$	439,508

Schedule of Inventory, Current

Inventories consisted of the following (in thousands):


	September 30, 2026		December 31, 2025
Construction materials and aviation spare parts	$	142,115	$	143,994
Raw materials	83,012		64,758
Work-in-process	9,524		4,427
Finished goods and merchandise purchased for resale	245,861		157,193
Total inventories	$	480,512	$	370,372

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):


	September 30, 2026		December 31, 2025
Prepaid expenses	$	705,956	$	488,488
Other current assets	347,946		235,772
Prepaid expenses and other current assets	$	1,053,902	$	724,260

Schedule of Identifiable Intangible Assets

Quanta’s identifiable intangible assets were as follows (in thousands):


	September 30, 2026		December 31, 2025
Customer relationships	$	4,111,340	$	3,523,939
Backlog	675,538		618,911
Trade names	904,217		794,379
Non-compete agreements	95,296		91,781
Patented rights, developed technology, process certifications and other	35,434		35,413
Curriculum	17,508		16,691
Other intangible assets subject to amortization	5,839,333		5,081,114
Accumulated amortization	(2,672,463)		(2,177,926)
Other intangible assets subject to amortization, net	3,166,870		2,903,188
Engineering license	3,000		3,000
Other intangible assets, net	$	3,169,870	$	2,906,188

Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consisted of the following (in thousands):


	September 30, 2026		December 31, 2025
Accounts payable, trade	$	4,259,405	$	2,832,600
Accrued compensation and related expenses	1,361,148		781,610
Other accrued expenses	1,569,140		965,248
Accounts payable and accrued expenses	$	7,189,693	$	4,579,458