Detail of Certain Accounts (Tables)

6 Months Ended

Jun. 30, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Cash and Cash Equivalents

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):

	June 30, 2025		December 31, 2024
Cash and cash equivalents held by domestic joint ventures	$	38,942	$	71,646
Cash and cash equivalents held by foreign joint ventures	10,119		10,088
Total cash and cash equivalents held by joint ventures	49,061		81,734
Cash and cash equivalents held by captive insurance company	20,330		19,445
Cash and cash equivalents not held by joint ventures or captive insurance company	440,069		640,781
Total cash and cash equivalents	$	509,460	$	741,960

Schedule of Prepaid Expenses and Other Current Assets

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

	June 30, 2025		December 31, 2024
Prepaid expenses	$	451,912	$	268,093
Other current assets	195,834		201,245
Prepaid expenses and other current assets	$	647,746	$	469,338

Schedule of Identifiable Intangible Assets

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

	June 30, 2025		December 31, 2024
Customer relationships	$	2,636,906	$	2,405,606
Backlog	476,860		442,459
Trade names	596,409		569,307
Non-compete agreements	63,023		61,589
Patented rights, developed technology, process certifications and other	35,355		35,317
Curriculum	15,979		15,618
Other intangible assets subject to amortization	3,824,532		3,529,896
Accumulated amortization	(1,902,589)		(1,672,359)
Other intangible assets subject to amortization, net	1,921,943		1,857,537
Engineering license	3,000		3,000
Other intangible assets, net	$	1,924,943	$	1,860,537

Accounts Payable and Accrued Expenses

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

	June 30, 2025		December 31, 2024
Accounts payable, trade	$	2,344,092	$	2,096,125
Accrued compensation and related expenses	648,989		651,893
Other accrued expenses	657,641		974,325
Accounts payable and accrued expenses	$	3,650,722	$	3,722,343