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Note 7 - Segment Reporting - Net Sales by Products and Services (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net sales	$ 4,295,834	$ 4,022,667	$ 4,564,737
Domestic [Member]
Net sales	3,599,149	3,276,324	3,867,866
International [Member]
Net sales	696,685	746,343	696,871
Residential Power Products [Member]
Net sales	2,433,474	2,062,929	2,911,871
Residential Power Products [Member] | Domestic [Member]
Net sales	2,352,629	1,945,273	2,782,037
Residential Power Products [Member] | International [Member]
Net sales	80,845	117,656	129,834
Commercial and Industrial Power Products [Member]
Net sales	1,389,469	1,494,799	1,260,737
Commercial and Industrial Power Products [Member] | Domestic [Member]
Net sales	828,586	916,118	746,172
Commercial and Industrial Power Products [Member] | International [Member]
Net sales	560,883	578,681	514,565
Other Products and Services [Member]
Net sales	472,891	464,939	392,129
Other Products and Services [Member] | Domestic [Member]
Net sales	417,934	414,933	339,657
Other Products and Services [Member] | International [Member]
Net sales	$ 54,957	$ 50,006	$ 52,472

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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