Investments (Tables)

12 Months Ended

Dec. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Debt Securities, Trading, and Equity Securities, FV-NI

Gains (losses) on equity securities recognized in ‘Unrealized gain (loss) on short-term investments held at the reporting date’ consisted of the following (in thousands):

	Year ended December 31,
	2022		2021
Net (losses) gains during the period	$	(53,888)	$	298,490
Less: losses on securities sold during the period	(46,743)		—
Unrealized (losses) gains recognized during the period on short-term investments held at the reporting date	$	(7,145)	$	298,490

Summary of Securities without Readily Determinable Fair Value

The following table summarizes the historical cost and estimated fair values for the Company’s securities without a readily determinable fair value as of December 31, 2021 and 2020 (in thousands). Impairment losses are included within Loss on investments, net in the Consolidated Statements of Operations.

	As of December 31,
	2021		2020
Cost	$	17,156	$	50,384
Impairment	(16,677)		(19,605)
Adjustments	(479)		(479)
Reported amount	$	—	$	30,300

Summary of Available-for-sale Investments

The table below summarizes the carrying value and the maximum exposure of Company’s investment in corporate debt securities as of December 31, 2022 (in thousands):

	December 31, 2022
	Fair value		Maximum exposure
Investment in corporate debt securities	$	15,586	$	15,586

The following table summarizes the gross unrealized gains and losses and fair values for investments classified as available-for-sale (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
December 31, 2022
Investment in corporate debt securities	$	15,000	$	586	$	—	$	15,586
December 31, 2021
Investment in corporate debt securities	$	—	$	—	$	—	$	—
December 31, 2020
Investment in corporate debt securities	$	511	$	152	$	—	$	663

Unrealized Gain (Loss) on Investments

Available-for-Sale Securities Classified by Contractual Maturity Date

The following table summarizes the Company’s corporate debt securities designated as available-for-sale, classified by the contractual maturity date of the security (in thousands):

	December 31,
	2022		2021
Due within 1 year	$	—	$	—
Due within more than 1 year but less than 5 years	15,586		—
Due within more than 5 years but less than 10 years	—		—
Due 10 years or after	—		—
Total	$	15,586	$	—

Carrying Amount for Equity Method Investment

The following table discloses the carrying amount for the Company’s equity method investment (in thousands). These equity securities are included within ‘Long-term investments’ in the Consolidated Balance Sheets.

	December 31, 2022				December 31, 2021
	Carrying value		Maximum exposure		Carrying value		Maximum exposure
Equity method investment	$	112,285	$	112,285	$	122,593	$	122,593