Strategic Actions (Details) $ / shares in Units, $ in Thousands, shares in Millions			1 Months Ended		3 Months Ended
		Feb. 27, 2023 USD ($)	Mar. 31, 2023 USD ($) shares	Mar. 31, 2023 USD ($)	Mar. 31, 2023 USD ($) shares	Mar. 31, 2022 USD ($) $ / shares	Sep. 30, 2022 USD ($)
Strategic Actions
Share repurchase authorized amount		$ 75,000
Share repurchase authorized amount			$ 325,000	$ 325,000	$ 325,000		$ 250,000
Consideration for repurchase					55,353
Share price (in dollars per share) | $ / shares						$ 10.69
Aggregate costs					$ 55,100
Repurchase of ordinary shares (in shares) | shares			183.3		5.2
Remaining repurchase amount			$ 141,700	$ 141,700	$ 141,700
Percent of Employee Reduction				17
Restructuring costs	[1]				1,574	$ 9,324
Severance
Strategic Actions
Employee-related separation costs					1,600	9,300
Cash charges related to modification of equity-awards for terminated and remaining employee					1,200	4,800
Non-cash charges related to modification of equity-awards for terminated and remaining employee					$ 400	4,500
Selling, general and administrative
Strategic Actions
Restructuring costs						4,600
Research and development
Strategic Actions
Restructuring costs						$ 4,700

[1] Amounts include share-based compensation expense as follows: