Business Combination, Acquiree's Liabilities Related To Future Payments To Employees

No definition available.

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- Definition

Business Combination, Consideration Transferred Related To Future Estimated Tax Payments

+ References

No definition available.

+ Details

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- Definition

Business Combination, Payment To Acquiree's Employees

+ References

No definition available.

+ Details

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- Definition

Business Combination, Subsequent Collection Of Acquiree's Unbilled Receivable

+ References

No definition available.

+ Details

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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- Definition

The capitalized costs incurred during the period (excluded from amortization) to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(7)(ii))
-URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862

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-Name Accounting Standards Codification
-Topic 932
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(3)(ii)(A))
-URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862

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Balance Type:	debit
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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Balance Type:	na
Period Type:	instant

- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
-Paragraph 8
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-Topic 805
-SubTopic 30
-Section 30
-Paragraph 7
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+ Details

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- Definition

This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to items of consideration transferred in connection with a business combination for which the initial accounting was incomplete.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 4A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=SL65897772-128472

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Balance Type:	credit
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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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Balance Type:	debit
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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

+ References

+ Details

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 45
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-Paragraph 1
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Details

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Business Acquisitions - Narrative (Detail) - USD ($)		1 Months Ended			12 Months Ended
Business Acquisitions - Narrative (Detail) - USD ($)	Nov. 30, 2018	Dec. 31, 2018	Nov. 30, 2018	Nov. 30, 2017	Dec. 31, 2018	Oct. 31, 2018	Dec. 31, 2017	Nov. 01, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill		$ 359,045,000			$ 359,045,000		$ 179,314,000		$ 139,983,000
Acquisition costs					0
Linetec
Business Acquisition [Line Items]
Goodwill	$ 188,500,000		$ 188,500,000
Net consideration of acquisition less assumed debt	326,600,000		326,600,000	$ 99,000,000
Acquired intangible assets	$ 89,300,000		89,300,000
Acquired intangible assets, weighted average useful life	19 years
Acquisition costs					$ 6,900,000
Linetec \| Customer relationships
Business Acquisition [Line Items]
Acquired intangible assets	$ 79,000,000		79,000,000
Acquired intangible assets, weighted average useful life	20 years
Linetec \| Trade Names
Business Acquisition [Line Items]
Acquired intangible assets	$ 10,000,000		10,000,000
Acquired intangible assets, weighted average useful life	15 years
Linetec \| Customer Contracts
Business Acquisition [Line Items]
Acquired intangible assets	$ 300,000		$ 300,000
Acquired intangible assets, weighted average useful life	1 year
Neuco
Business Acquisition [Line Items]
Goodwill								$ 32,200,000
Net consideration of acquisition less assumed debt								99,300,000
Acquired intangible assets								44,800,000
Acquisition costs				$ 2,600,000
Goodwill expected tax deductible amount								$ 32,000,000
Centuri \| Linetec
Business Acquisition [Line Items]
Percentage of voting interests acquired	80.00%		80.00%
Business combination consideration	$ 326,600,000		$ 75,600,000
Subsequent collection of acquiree's unbilled receivable	30,000,000		30,000,000
Acquiree's liabilities related to future payments to employees	29,600,000		$ 29,600,000
Consideration held back for estimated purchase price and working capital adjustment to be paid	16,900,000
Consideration transferred related to future estimated tax payments	$ 24,100,000
Payment to acquiree's employees		$ 25,000,000
Linetec
Business Acquisition [Line Items]
Ownership percentage by noncontrolling owners	20.00%		20.00%
Secured Revolving Credit Facility and Term Loan \| Centuri
Business Acquisition [Line Items]
Credit facility maximum borrowing capacity	$ 590,000,000		$ 590,000,000			$ 450,000,000