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Detail of Certain Balance Sheet Accounts (Tables)

12 Months Ended

Dec. 31, 2016

Text Block [Abstract]

Current and Long-Term Allowance for Doubtful Accounts

Activity in Quanta’s current and long-term allowance for doubtful accounts consisted of the following (in thousands):

		December 31,
		2016				2015
Balance at beginning of year		$	5,226			$	6,174
Charged to bad debt expense (recoveries of bad debt expense)			(543	)			224
Deductions for uncollectible receivables written off, net of recoveries			(1,931	)			(1,172	)
Balance at end of year		$	2,752			$	5,226

Contracts in Progress

Contracts in progress were as follows (in thousands):

		December 31,
		2016				2015
Costs incurred on contracts in progress		$	6,687,484			$	5,725,078
Estimated earnings, net of estimated losses			766,560				756,974
			7,454,044				6,482,052
Less — Billings to date			(7,255,582	)			(6,563,537	)
		$	198,462			$	(81,485	)
Costs and estimated earnings in excess of billings on uncompleted contracts		$	473,308			$	317,745
Less — Billings in excess of costs and estimated earnings on uncompleted contracts			(274,846	)			(399,230	)
		$	198,462			$	(81,485	)

Property and Equipment

Property and equipment consisted of the following (in thousands):

		Estimated Useful Lives in Years				December 31,
						2016				2015
Land			N/A			$	45,919			$	41,428
Buildings and leasehold improvements			5-30				137,515				116,697
Operating equipment and vehicles			5-25				1,634,850				1,517,630
Office equipment, furniture and fixtures and information technology systems			3-10				145,174				137,670
Construction work in progress			N/A				73,461				43,806
							2,036,919				1,857,231
Less — Accumulated depreciation and amortization							(862,825	)			(755,272	)
Property and equipment, net						$	1,174,094			$	1,101,959

Accounts Payable and Accrued Expenses

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

		December 31,
		2016				2015
Accounts payable, trade		$	529,608			$	452,295
Accrued compensation and related expenses			194,056				159,045
Accrued insurance, current portion			60,880				61,327
Deferred revenues, current portion			15,512				8,010
Income and franchise taxes payable			40,765				3,923
Other accrued expenses			81,998				97,534
		$	922,819			$	782,134

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Contracts in progress.

+ References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses.

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- Definition

Tabular disclosure of credit losses for current financing receivables (such as trade and accounts receivable), including a rollforward of the balance. An alternative caption includes allowance for doubtful accounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

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