Segment Information - Segment Disclosures (Detail) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Total revenues:	$ 924,676	$ 900,510	$ 844,156	$ 686,649	$ 2,669,342	$ 1,995,405
Total depreciation and amortization:	214,825			132,403	627,410	381,415
Capital expenditures:	279,477			216,046	727,044	587,508
Americas
Segment Reporting Information [Line Items]
Total revenues:	425,142			382,630	1,243,007	1,118,046
Total depreciation and amortization:	81,724			69,721	236,385	205,674
Capital expenditures:	147,328			105,250	346,817	292,376
EMEA
Segment Reporting Information [Line Items]
Total revenues:	301,250			177,563	869,715	516,153
Total depreciation and amortization:	79,292			32,851	237,846	86,991
Capital expenditures:	79,585			39,816	223,440	124,299
Asia-Pacific
Segment Reporting Information [Line Items]
Total revenues:	198,284			126,456	556,620	361,206
Total depreciation and amortization:	53,809			29,831	153,179	88,750
Capital expenditures:	$ 52,564			$ 70,980	$ 156,787	$ 170,833