Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets
Inventory cost	$ 21,692	$ 15,154
Accrued expenses and accounts receivable	5,966	5,294
Research and development tax credits	9,613	15,807
Net operating loss carryforwards	42,068	42,734
Lease obligations	2,050	2,982
Plant, equipment and intangible assets		162
Accrued pension	3,878	6,386
Share based compensation and others	14,809	8,810
Total deferred tax assets, include valuation allowance	100,076	97,329
Valuation allowances	(45,232)	(45,591)
Total deferred tax assets, non-current	54,844	51,738
Deferred tax liabilities
Plant, equipment and intangible assets	(1,330)
Right of use assets	(1,975)	(2,936)
Outside basis differences and others	(50,773)	(13,467)
Total deferred tax liabilities, non-current	(54,078)	(16,403)
Net deferred tax assets	$ 766	$ 35,335