Income Tax - Components of Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Foreign tax credit carryforward	$ 19,179	$ 17,577
General business credit carryforward	8,008	7,053
Inventory	11,156	9,564
Net operating losses	29,321	32,278
Allowance for doubtful accounts	440	970
Reserve for accrued liabilities	3,302	2,769
Stock options and awards	1,350	904
Unrealized gain/loss		810
Disallowed interest carryforward	1,437	2,662
Capitalized R&D costs	4,653	3,282
Other	2,162	820
Total deferred tax assets	81,008	78,689
Valuation allowance	(60,863)	(59,952)
Deferred tax liabilities:
Property, plant and equipment	(7,346)	(7,652)
Goodwill & Intangibles	(6,263)	(1,519)
Deferred revenue	(2,851)	(2,728)
Reserve for unremitted earnings	(2,713)	(2,244)
Unrealized gain/loss	(561)	0
Other	(1,986)	(3,862)
Total deferred tax liability	(21,720)	(18,005)
Net deferred tax liability	$ (1,575)
Net deferred tax asset		$ 732