Income Taxes - Tax Effects (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income (loss) before income taxes
United States	$ 198,028	$ 116,380	$ 51,934
Foreign	6,857	4,048	3,952
Income before income taxes	204,885	120,428	55,886
Current:
Federal	8,430
State	1,716	82	157
Foreign	3,124	1,439	1,062
Total current	13,270	1,521	1,219
Deferred:
Federal	9,097	20,521	4,594
State	(102)	406	295
Foreign	(459)	(670)	(204)
Total deferred	8,536	20,257	4,685
Income tax provision	$ 21,806	21,778	5,904
Reconciliation of income taxes at the United States Federal statutory rate to the effective income tax rate
Effective Federal income tax rate	10.60%
Income taxes at the United States statutory rate	$ 43,026	25,290	11,736
State income taxes	1,075	387	226
Effect of change in valuation allowance	680	(1,443)	806
Foreign income tax rate differentials	289	152	181
Stock based compensation	(3,818)	(3,658)	(2,803)
Internal revenue code section 162m limitation	2,692	1,481	409
Credit expirations	1,181	2,342	(14)
Rate change	94	159	151
Credit generation	(4,764)	(3,096)	(2,473)
Discrete items, net	206	72	(147)
Previously unrecognized tax benefit			(4,063)
GILTI inclusion	69	301	732
Other, net	1,602	(209)	1,163
Foreign-derived intangible income	(20,526)
Income tax provision	21,806	21,778	$ 5,904
Deferred tax assets:
Federal net operating loss carryforwards		5,635
State net operating loss carryforwards	291	727
Foreign net operating loss carryforwards	276	371
Federal tax credit carryforwards		18,840
State tax credit carryforwards	8,683	8,138
Property, plant and equipment	8,755	8,967
Operating lease liability	1,564	792
Accrued compensation	276	280
Inventories	1,613	1,729
Stock compensation	1,620	1,401
Warranty	1,993	1,471
Deferred revenue	4,501	836
Capitalized research and development costs	18,067
Gross deferred tax assets	47,639	49,187
Valuation allowance	(8,370)	(7,689)
Net deferred tax assets	39,269	41,498
Deferred tax liabilities:
Intangible assets	(176)	(72)
Right-of-use asset	(5,400)	(4,918)
Other	(1,992)	(1,054)
Gross deferred tax liabilities	(7,568)	(6,044)
Deferred taxes, net	31,701	$ 35,454
Decrease in valuation allowance	$ 700