Note 6 - Segment Reporting - Segment Information (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Sales		$ 942,121	$ 889,273
Costs of goods sold		570,135	572,894
Elimination of intersegment cost of goods sold		371,986	316,379
Operating expenses		288,348	249,510
Other segment items (1)	[1]	(65,908)	(60,364)
Adjusted EBITDA by reportable segment		149,546	127,233
Interest expense		(17,110)	(23,605)
Depreciation and amortization		(46,141)	(41,902)
Non-cash write-down and other adjustments (2)	[2]	13	(510)
Non-cash share-based compensation expense (3)	[3]	(11,608)	(12,440)
Transaction costs and credit facility fees (4)	[4]	(760)	(1,425)
Business optimization and other charges (5)	[5]	(1,575)	(486)
Provision for legal, regulatory, and other matters (6)	[6]	(3,751)	(2,535)
Change in fair value of investment (7)	[7]	(9,947)	(6,019)
Other		(153)	200
Income before provision for income taxes		58,514	38,511
Assets		5,060,454		$ 5,109,331
Depreciation and Amortization		46,141	41,902
Capital expenditures		30,937	26,820
External Net Sales [Member]
Sales		942,121	889,273
Intersegment Sales [Member]
Sales		25,756	17,908
Domestic [Member]
Sales		774,642	712,337
Assets		3,753,902		3,873,904
Depreciation and Amortization		37,821	34,148
Capital expenditures		28,297	24,166
International [Member]
Sales		167,479	176,936
Assets		1,306,552		$ 1,235,427
Depreciation and Amortization		8,320	7,754
Capital expenditures		2,640	2,654
Operating Segments [Member]
Sales		967,877	907,181
Costs of goods sold		595,891	590,802
Operating Segments [Member] | Domestic [Member]
Sales		782,336	720,473
Costs of goods sold		460,972	455,321
Operating expenses		254,709	215,648
Other segment items (1)	[1]	(55,858)	(49,671)
Adjusted EBITDA by reportable segment		122,513	99,175
Operating Segments [Member] | Domestic [Member] | External Net Sales [Member]
Sales		774,642	712,337
Operating Segments [Member] | Domestic [Member] | Intersegment Sales [Member]
Sales		7,694	8,136
Operating Segments [Member] | International [Member]
Sales		185,541	186,708
Costs of goods sold		134,919	135,481
Operating expenses		33,639	33,862
Other segment items (1)	[1]	(10,050)	(10,693)
Adjusted EBITDA by reportable segment		27,033	28,058
Operating Segments [Member] | International [Member] | External Net Sales [Member]
Sales		167,479	176,936
Operating Segments [Member] | International [Member] | Intersegment Sales [Member]
Sales		18,062	9,772
Intersegment Eliminations [Member]
Elimination of intersegment cost of goods sold		(25,756)	(17,908)
Intersegment Eliminations [Member] | Intersegment Sales [Member]
Sales		$ (25,756)	$ (17,908)

[1] Other segment items primarily represent depreciation and amortization and the following items defined below: Non-cash write-down and other adjustments; Non-cash shared-based compensation expense; Transaction costs and credit facility fees; Business optimization and other charges; and Provision for legal, regulatory, and clean energy product charges.

[2] Includes gains (losses) on dispositions of assets other than in the ordinary course of business, gains (losses) on sales of certain investments, unrealized mark-to-market adjustments on commodity contracts, certain foreign currency related adjustments, and certain purchase accounting and contingent consideration adjustments.

[3] Represents share-based compensation expense to account for stock options, restricted stock, and other stock awards over their respective vesting periods.

[4] Represents transaction costs incurred directly in connection with any investment, as defined in the Company's credit agreement, equity issuance or debt issuance or refinancing, together with certain fees relating to the Company's senior secured credit facilities, such as administrative agent fees and credit facility commitment fees under the Company's Amended Credit Agreement.

[5] Represents severance and other restructuring charges related to the consolidation of certain operating facilities and organizational functions.

[6] Represents the following litigation, regulatory, and other matters that are not indicative of our ongoing operations: • A provision for judgments, settlements, and legal expenses related to certain patent lawsuits - $1,492 in the first quarter of 2025 and $2,170 in the first quarter of 2024. • Legal expenses related to certain class action lawsuits - $1,343 in the first quarter of 2025. • Legal expenses related to certain government inquiries and other significant matters - $916 in the first quarter of 2025. • Additional customer support costs related to a clean energy product customer that filed for bankruptcy in 2022 – $365 in the first quarter of 2024.

[7] Represents non-cash losses from changes in the fair value of the Company's investment in Wallbox warrants and equity securities.