Note 9 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

(in thousands)	2022			2021		2020
Current:
U.S. Federal	$	1,609		$	1,103	$	-
U.S. State		456			101		21
Foreign		31,307			22,862		5,950
Total current		33,372			24,066		5,971
Deferred:
U.S. Federal		(9	)		5		8
Foreign		(3,495	)		948		(5,313	)
Total deferred		(3,504	)		953		(5,305	)
	$	29,868		$	25,019	$	666

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

(in thousands)	2022		2021		2020
U.S.	$	9,180	$	30,588	$	(25,005	)
Foreign		117,535		161,756		11,828
Total	$	126,715	$	192,344	$	(13,177	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

(in thousands)	2022			2021
Deferred tax assets:
Inventory, receivable and warranty reserves	$	13,599		$	12,166
Net operating loss carryforwards		39,545			44,806
Tax credit carryforwards		29,646			31,264
Capitalized R&D		19,819			8,728
Accrued employee benefits		4,416			5,695
Stock-based compensation		2,990			2,222
Lease liabilities		3,965			4,500
Other		472			2,674
Gross deferred tax assets		114,452			112,055
Less valuation allowance		(89,234	)		(76,250	)
Total deferred tax assets		25,218			35,805
Deferred tax liabilities:
Intangible assets and other acquisition basis differences		38,921			48,657
Operating lease right-of-use assets		3,573			4,066
Unremitted earnings of foreign subsidiaries		153			4,207
Total deferred tax liabilities		42,647			56,930
Net deferred tax liabilities	$	(17,429	)	$	(21,125	)

(in thousands)	2022			2021
Other assets (long-term)	$	3,930		$	4,762
Long-term deferred income tax liabilities		(21,359	)		(25,887	)
Net deferred tax liabilities	$	(17,429	)	$	(21,125	)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

(in thousands)	2022			2021			2020
Tax provision at U.S. 21% statutory rate	$	26,610		$	40,392		$	(2,757	)
State income taxes, net of federal tax benefit		(1,535	)		2,246			(1,160	)
Settlements, adjustments and releases from statute expirations		348			(787	)		(118	)
Federal R&D credits		(1,679	)		(943	)		(46	)
Stock-based compensation		(572	)		(4,802	)		727
Excess executive compensation		946			1,608			491
Change in valuation allowance		13,307			(9,882	)		(1,691	)
Exemption of PTG gain		-			(12,378	)		-
Dividend, net of foreign tax credits		13			693			1,224
GILTI, net of foreign tax credits		3,458			9,343			4,191
Foreign rate differential		(6,131	)		(1,023	)		(1,512	)
Other, net		(4,897	)		552			1,317
	$	29,868		$	25,019		$	666

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

(in thousands)	2022			2021			2020
Balance at beginning of year	$	33,391		$	33,696		$	34,740
Additions for tax positions of current year		910			686			817
Reductions for tax positions of prior years		(428	)		(83	)		(425	)
Reductions due to lapse of the statute of limitations		(354	)		(1,012	)		(304	)
Reductions due to settlements		-			-			(1,134	)
Foreign exchange rate impact		(151	)		104			2
Balance at end of year	$	33,368		$	33,391		$	33,696