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Note 12 - Goodwill - Components of Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 30, 2021
Balance | $ 1,988,539 |  |
Goodwill acquired during the year | 34,369 | $ 936,122 |
Goodwill disposed during the year | (629) | (7,052) |
Other items | (827) | 0 |
Foreign exchange | 16,788 | (31,579) |
Balance | 2,038,240 | 1,988,539 |
Goodwill | 2,067,823 |  |
Accumulated impairment loss | (29,583) |  |
Goodwill | 2,038,240 | 1,988,539 | $ 1,091,048
Investment Management [Member] |  |  |
Balance | 1,110,018 |  |
Goodwill acquired during the year | 0 | 735,011 |
Goodwill disposed during the year | 0 | 0 |
Other items | 0 | (2,410) |
Foreign exchange | 1,511 | (1,904) |
Balance | 1,111,529 | 1,110,018 |
Goodwill | 1,111,529 |  |
Accumulated impairment loss | 0 |  |
Goodwill | 1,111,529 | 1,110,018 | 379,321
Americas [Member] |  |  |
Balance | 395,095 |  |
Goodwill acquired during the year | 22,168 | 35,221 |
Goodwill disposed during the year | (629) | 0 |
Other items | (144) | 0 |
Foreign exchange | 643 | (71) |
Balance | 417,133 | 395,095 |
Goodwill | 443,404 |  |
Accumulated impairment loss | (26,271) |  |
Goodwill | 417,133 | 395,095 | 359,945
EMEA [Member] |  |  |
Balance | 369,065 |  |
Goodwill acquired during the year | 0 | 135,061 |
Goodwill disposed during the year | 0 | (7,052) |
Other items | (683) | 2,410 |
Foreign exchange | 14,234 | (21,118) |
Balance | 382,616 | 369,065 |
Goodwill | 385,928 |  |
Accumulated impairment loss | (3,312) |  |
Goodwill | 382,616 | 369,065 | 259,764
Asia Pacific [Member] |  |  |
Balance | 114,361 |  |
Goodwill acquired during the year | 12,201 | 30,829 |
Goodwill disposed during the year | 0 | 0 |
Other items | 0 | 0 |
Foreign exchange | 400 | (8,486) |
Balance | 126,962 | 114,361 |
Goodwill | 126,962 |  |
Accumulated impairment loss | 0 |  |
Goodwill | $ 126,962 | $ 114,361 | $ 92,018

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