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Note 6 - Segment Reporting - Net Sales by Products and Services (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Net sales | $ 1,061,169 | $ 998,197 | $ 2,003,290 | $ 1,887,470
Residential Power Products [Member] |  |  |  |
Net sales | 574,189 | 538,399 | 1,068,340 | 967,349
Commercial and Industrial Power Products [Member] |  |  |  |
Net sales | 362,203 | 344,169 | 699,576 | 698,139
Other Products and Services [Member] |  |  |  |
Net sales | 124,777 | 115,629 | 235,374 | 221,982
Domestic [Member] |  |  |  |
Net sales | 878,231 | 817,558 | 1,652,873 | 1,529,895
Domestic [Member] | Residential Power Products [Member] |  |  |  |
Net sales | 553,314 | 515,166 | 1,026,604 | 927,319
Domestic [Member] | Commercial and Industrial Power Products [Member] |  |  |  |
Net sales | 216,335 | 200,315 | 422,481 | 406,808
Domestic [Member] | Other Products and Services [Member] |  |  |  |
Net sales | 108,582 | 102,077 | 203,788 | 195,768
International [Member] |  |  |  |
Net sales | 182,938 | 180,639 | 350,417 | 357,575
International [Member] | Residential Power Products [Member] |  |  |  |
Net sales | 20,875 | 23,233 | 41,736 | 40,030
International [Member] | Commercial and Industrial Power Products [Member] |  |  |  |
Net sales | 145,868 | 143,854 | 277,095 | 291,331
International [Member] | Other Products and Services [Member] |  |  |  |
Net sales | $ 16,195 | $ 13,552 | $ 31,586 | $ 26,214

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