Segment Information - Schedule of Adjusted EBITDA (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Total adjusted EBITDA	$ 550,319	$ 420,042	$ 1,487,201	$ 1,220,983
Depreciation, amortization and accretion expense	(277,719)	(215,370)	(749,118)	(631,242)
Stock-based compensation expense	(45,654)	(42,473)	(129,602)	(116,311)
Acquisition costs	(2,083)	(12,505)	(31,510)	(64,635)
Impairment charges	0	(7,698)	0	(7,698)
Gains on asset sales	0	27,945	0	33,187
Income from continuing operations	224,863	169,941	576,971	434,284
Americas [Member]
Segment Reporting Information [Line Items]
Total adjusted EBITDA	292,101	202,131	748,871	581,619
EMEA [Member]
Segment Reporting Information [Line Items]
Total adjusted EBITDA	146,464	121,468	417,640	366,412
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Total adjusted EBITDA	$ 111,754	$ 96,443	$ 320,690	$ 272,952

Adjusted earnings before interest, taxes, depreciation and amortization/accretion.

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

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-Publisher FASB
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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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-Publisher FASB
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- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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- Definition

The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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The net result for the period of deducting operating expenses from operating revenues.

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No definition available.

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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.

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