Revenue by Geographic Area (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 1,515,892	$ 1,293,636	$ 1,095,250
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	637,916	506,335	417,343
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	162,154	145,951	126,097
Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	158,809	140,506	108,211
South Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	90,082	72,724	63,011
France
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	68,551	67,657	53,672
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	64,725	57,567	54,415
Other EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	211,193	193,317	166,472
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 122,462	$ 109,579	$ 106,029