Segment Information - Selected Segment Financial Data, Revenues and Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended										12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016		Mar. 31, 2016		Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$ 342,730	$ 216,975	$ 219,930		$ 226,066		$ 308,637	$ 238,701	$ 265,822	$ 232,817	$ 1,005,701	$ 1,045,977	$ 1,016,149
Depreciation and amortization expense											103,454	97,431	86,683
Stock-based compensation expense											43,613	18,380	11,045
Income before income taxes	$ 109,862	$ (16,252)	$ (34,143)	[1]	$ 126,114	[1]	$ 62,623	$ 18,566	$ 32,876	$ (692)	185,581	113,373	98,769
Operating Segments [Member] | Americas Segment [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization expense											27,951	24,966	20,548
Stock-based compensation expense											5,005	1,638	2,910
Income before income taxes											206,689	111,382	143,379
Operating Segments [Member] | Americas Segment [Member] | United States [Member]
Segment Reporting Information [Line Items]
Revenues											527,431	628,013	614,488
Operating Segments [Member] | Americas Segment [Member] | Other [Member]
Segment Reporting Information [Line Items]
Revenues											116,718	82,548	87,279
Operating Segments [Member] | EMEA Segment [Member]
Segment Reporting Information [Line Items]
Revenues											261,160	250,568	230,879
Depreciation and amortization expense											3,830	3,670	4,126
Stock-based compensation expense											6,476	1,223	419
Income before income taxes											176,958	132,518	116,120
Operating Segments [Member] | Asia/Pacific Segment [Member]
Segment Reporting Information [Line Items]
Revenues											100,392	84,848	83,503
Depreciation and amortization expense											1,820	1,751	1,809
Stock-based compensation expense											605	36	249
Income before income taxes											62,422	41,658	38,853
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization expense											69,853	67,044	60,200
Stock-based compensation expense											31,527	15,483	7,467
Income before income taxes											$ (260,488)	$ (172,185)	$ (199,583)

[1] As previously discussed in Note 1, Nature of Business and Summary of Significant Accounting Policies, the Company adopted ASU 2016-09 during the year ended December 31, 2016. The Company elected to early adopt ASU 2016-09 in the third quarter of 2016, which requires it to reflect any adjustments as of January 1, 2016, the beginning of the annual period that includes the interim period of adoption. The impact of the adoption to the Company's previously reported quarterly results for the quarters ended March 31 and June 30, 2016 are reflected in the table above.