Other Balance Sheet Components

12 Months Ended

Dec. 31, 2021

Other Balance Sheet Components [Abstract]

Prepaid expenses and other current assets

Prepaid expenses and other current assets consisted of the following (in thousands):


	As of December 31,
	2021		2020
Prepaid Expenses	$	27,671	$	17,606
Other current assets	4,420		8,668
Total prepaid expenses and other current assets	$	32,091	$	26,274

Property and equipment, net

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


	As of December 31,
	2021		2020
Servers and related equipment	$	361,227	$	264,994
Computer hardware and software	16,154		3,498
Furniture and fixtures	179		162
Leasehold improvements	30,482		27,437
Construction in progress	16,837		294
Total property and equipment	424,879		296,385
Less accumulated depreciation and amortization	(153,527)		(89,970)
Property and equipment—net	$	271,352	$	206,415

Construction in progress includes costs mostly related to leasehold improvements related to the Company’s office buildings and network equipment infrastructure to support the Company’s data centers.

Depreciation expense was $64.9 million, $42.7 million, and $27.6 million for years ended December 31, 2021, 2020, and 2019, respectively.

Accrued expenses and other current liabilities

Accrued expenses and other current liabilities consisted of the following (in thousands):


	As of December 31,
	2021		2020
General accrued expenses	$	56,134	$	41,699
Short term operating lease liabilities(1)	51,303		—
Accrued interest 2030 Notes	6,781		—
Taxes payable	43,286		19,119
Accrued compensation and other employee related liabilities	14,511		801
Other current liability	8,754		3,773
Total accrued liabilities and other current liabilities	$	180,769	$	65,392

(1)Refer to Note 3, “Leases” to the Notes to Consolidated Financial Statements for more information.

Other long-term liabilities include zero and $21.9 million in deferred rent as of December 31, 2021, and December 31, 2020, respectively.