Segment Information - Segment Disclosures (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Total revenues	$ 844,156	$ 643,174
Total depreciation and amortization	200,534	121,636
Capital expenditures	197,700	150,120
Americas [Member]
Segment Reporting Information [Line Items]
Total revenues	404,394	363,969
Total depreciation and amortization	76,259	66,727
Capital expenditures	83,499	82,726
EMEA [Member]
Segment Reporting Information [Line Items]
Total revenues	267,856	164,623
Total depreciation and amortization	76,050	26,507
Capital expenditures	57,273	27,556
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Total revenues	171,906	114,582
Total depreciation and amortization	48,225	28,402
Capital expenditures	$ 56,928	$ 39,838