Summary of Significant Accounting Policies (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2019

Dec. 31, 2018

Summary of Significant Accounting Policies

Summary of reconciliation cash and cash equivalents and restricted cash per the balance sheet to the statement of cash flows

The following table reconciles cash and cash equivalents and restricted cash per the balance sheet to the statement of cash flows (in thousands):

	September 30,		December 31,
	2019		2018
Cash and cash equivalents	$	9,935	$	135,173
Restricted cash (including $3,750 in other assets)		5,039		460
Total	$	14,974	$	135,633

The following table reconciles cash and cash equivalents and restricted cash per the balance sheet to the statement of cash flows (in thousands):

	December 31,
	2018		2017
Cash and cash equivalents	$	135,173	$	8,427
Restricted cash		460		860
Total	$	135,633	$	9,287

Summary of estimated useful lives for property and equipment

	Estimated Useful Life
Computers and peripherals	3 years
Equipment	5 years
Furniture and fixtures	7 years
Leasehold improvements	Lesser of estimated useful life or remaining lease term