CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Ordinary Shares	Additional Paid-in Capital	Accumulated Other Comprehensive Gain (Loss)	Accumulated Deficit	Total
Balances at Dec. 31, 2021	$ 1	$ 1,387,469		$ (1,726,043)	$ (338,573)
Balances (in shares) at Dec. 31, 2021	74,435
Increase (Decrease) in Stockholders' Equity
Repurchase of ordinary shares, net of transaction costs		(94,037)			(94,037)
Repurchase of ordinary shares, net of transaction costs (in shares)	(9,645)
Proceeds from ESPP purchases		488			488
Proceeds from ESPP purchases (in shares)	72
Employee share-based compensation expense		32,784			32,784
Issuance of restricted shares (in shares)	2,764
Repurchase of shares to satisfy tax withholding		(2,457)			(2,457)
Repurchase of shares to satisfy tax withholding (in shares)	(260)
Net unrealized gain (loss) on marketable securities			$ (121)		(121)
Net income (loss)				882,494	882,494
Balances at Sep. 30, 2022	$ 1	1,324,247	(121)	(843,549)	480,578
Balances (in shares) at Sep. 30, 2022	67,366
Balances at Jun. 30, 2022	$ 1	1,410,415	(45)	(1,760,180)	(349,809)
Balances (in shares) at Jun. 30, 2022	76,427
Increase (Decrease) in Stockholders' Equity
Repurchase of ordinary shares, net of transaction costs		(94,037)			(94,037)
Repurchase of ordinary shares, net of transaction costs (in shares)	(9,645)
Proceeds from ESPP purchases		1			1
Employee share-based compensation expense		8,530			8,530
Issuance of restricted shares (in shares)	655
Repurchase of shares to satisfy tax withholding		(662)			(662)
Repurchase of shares to satisfy tax withholding (in shares)	(71)
Net unrealized gain (loss) on marketable securities			(76)		(76)
Net income (loss)				916,631	916,631
Balances at Sep. 30, 2022	$ 1	1,324,247	(121)	(843,549)	480,578
Balances (in shares) at Sep. 30, 2022	67,366
Balances at Dec. 31, 2022	$ 1	1,295,725	(15)	(853,911)	$ 441,800
Balances (in shares) at Dec. 31, 2022	65,227				65,227
Increase (Decrease) in Stockholders' Equity
Repurchase of ordinary shares, net of transaction costs		(166,787)			$ (166,787)
Repurchase of ordinary shares, net of transaction costs (in shares)	(15,619)				(15,620)
Proceeds from ESPP purchases		445			$ 445
Proceeds from ESPP purchases (in shares)	63
Employee share-based compensation expense		19,547			19,547
Issuance of restricted shares (in shares)	1,337
Repurchase of shares to satisfy tax withholding		(1,982)			(1,982)
Repurchase of shares to satisfy tax withholding (in shares)	(189)
Net unrealized gain (loss) on marketable securities			(210)		(210)
Net income (loss)				(46,683)	(46,683)
Balances at Sep. 30, 2023	$ 1	1,146,948	(225)	(900,594)	$ 246,130
Balances (in shares) at Sep. 30, 2023	50,819				50,819
Balances at Jun. 30, 2023	$ 1	1,172,090	(286)	(891,644)	$ 280,161
Balances (in shares) at Jun. 30, 2023	53,694
Increase (Decrease) in Stockholders' Equity
Repurchase of ordinary shares, net of transaction costs		(30,891)			$ (30,891)
Repurchase of ordinary shares, net of transaction costs (in shares)	(3,178)				(3,180)
Proceeds from ESPP purchases		(1)			$ (1)
Employee share-based compensation expense		6,262			6,262
Issuance of restricted shares (in shares)	356
Repurchase of shares to satisfy tax withholding		(512)			(512)
Repurchase of shares to satisfy tax withholding (in shares)	(53)
Net unrealized gain (loss) on marketable securities			61		61
Net income (loss)				(8,950)	(8,950)
Balances at Sep. 30, 2023	$ 1	$ 1,146,948	$ (225)	$ (900,594)	$ 246,130
Balances (in shares) at Sep. 30, 2023	50,819				50,819