Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Debt Securities, Available-for-sale

The following table summarizes the Company’s marketable securities by significant investment categories (in thousands):

	March 31, 2022
	Amortized Cost		Gross Unrealized Gain (Loss)		Fair Value
Commercial paper	$	55,282	$	—	$	55,282
U.S. Treasury and government debt securities	45,215		(239)		44,976
Total	$	100,497	$	(239)	$	100,258
	December 31, 2021
	Amortized Cost		Gross Unrealized Loss		Fair Value
Commercial paper	$	50,954	$	—	$	50,954
U.S. Treasury and government debt securities	26,203		(36)		26,167
Total	$	77,157	$	(36)	$	77,121

Property, Plant and Equipment

Property, equipment and software, net consists of the following (in thousands):

	March 31, 2022		December 31, 2021
Internal-use software	$	33,857	$	30,581
Network hardware, computer equipment and software	92,935		92,561
Leasehold improvements	2,508		2,426
Furniture and fixtures	1,448		1,448
Property, equipment and software, gross	130,748		127,016
Less: accumulated depreciation and amortization	(83,958)		(76,876)
Total property, equipment and software, net	$	46,790	$	50,140

Schedule of Accounts Payable and Accrued Liabilities

Accounts payable consists of the following (in thousands):

	March 31, 2022		December 31, 2021
Payable to publishers	$	177,032	$	235,440
Trade payables	8,980		8,881
Total accounts payable	$	186,012	$	244,321

Schedule of Accrued Liabilities

Accrued expenses consist of the following (in thousands):

	March 31, 2022		December 31, 2021
Accrued compensation	$	7,595	$	17,271
Accrued and other current liabilities	3,081		1,509
Total accrued expenses	$	10,676	$	18,780