Geographical Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 201,911	$ 131,359
Total property and equipment, net and operating lease right-of-use assets	243,833		$ 226,715
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	181,762	121,382
Total property and equipment, net and operating lease right-of-use assets	234,794		222,188
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	20,149	$ 9,977
Total property and equipment, net and operating lease right-of-use assets	$ 9,039		$ 4,527