Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Useful Lives of Property, Plant and Equipment

Depreciation is calculated using the straight-line method over the estimated useful lives of the respective assets as follows:

	Estimated Useful Life
Computers	3 years
Capitalized internal-use software	3 years
Office equipment, furniture and fixtures	5 years
Motor vehicles	5 years
Leasehold improvements	Lesser of lease term or 5 years

The following table summarizes property and equipment, net as of December 31, 2021 and 2020 (in thousands):

	December 31,
	2021		2020
Computers	$	13,041	$	9,249
Capitalized internal-use software	14,178		10,041
Office equipment	3,375		2,770
Furniture and fixtures	8,395		9,472
Motor vehicles	1,421		2,423
Leasehold improvements	4,274		4,274
Construction in progress	—		322
Total property and equipment	44,684		38,551
Less: accumulated depreciation and amortization	(23,206)		(17,767)
Property and equipment, net	$	21,478	$	20,784

Schedule of Unrealized Gains or Losses Within Accumulated Other Comprehensive Income (Loss)

The following tables shows the change in unrealized gains or losses within accumulated other comprehensive (loss) income:

	December 31,
	2021		2020		2019
Beginning balance	$	411	$	139	$	1,141
Add: Unrealized (losses) gains on available-for-sale debt securities	(1,152)		405		—
Less: Adjustment for the adoption of ASU 2016-01	—		—		(981)
Less: Reclassification of unrealized gains to interest and other income, net, in the consolidated statements of operations	(6)		(133)		(21)
Net impact to other comprehensive (loss) income in current period	(1,158)		272		(1,002)
Ending balance	$	(747)	$	411	$	139