Leases (Lease Cost) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 11,945
Short-term Lease, Cost	1,111	[1]
Total lease cost	$ 13,056	[2]

[1] Includes variable lease cost, which was immaterial.

[2] Included in cost of revenue, sales and marketing, research and development and general and administration in the Company’s consolidated statement of operations.