Segment Information - Segment Disclosures (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Total depreciation and amortization	$ 319,224	$ 307,331	$ 632,402	$ 614,899
Capital expenditures	444,171	520,239	808,138	869,968
Americas [Member]
Segment Reporting Information [Line Items]
Total depreciation and amortization	167,244	159,922	334,014	317,500
Capital expenditures	173,623	200,277	318,118	347,606
EMEA [Member]
Segment Reporting Information [Line Items]
Total depreciation and amortization	87,980	88,492	172,145	181,772
Capital expenditures	170,851	222,377	335,206	376,768
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Total depreciation and amortization	64,000	58,917	126,243	115,627
Capital expenditures	$ 99,697	$ 97,585	$ 154,814	$ 145,594