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Note 3 - Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] |
|  | Aggregate Acquisitions
Current assets |  | $ | 16,643 |
Non-current assets |  |  | 3,719 |
Current liabilities |  |  | (18,556 | )
Long-term liabilities |  |  | (4,207 | )
Non-controlling interests |  |  | (25 | )
|  | $ | (2,427 | )
Cash consideration, net of cash acquired of $10,067 |  |  | (82,073 | )
Acquisition date fair value of contingent consideration |  |  | (12,056 | )
Total purchase consideration |  | $ | (94,129 | )
Acquired intangible assets |  | $ | 43,602 |
Goodwill |  | $ | 52,954 |
|  | Aggregate Acquisitions
Current assets |  | $ | 10,649 |
Non-current assets |  |  | 2,407 |
Current liabilities |  |  | (13,264 | )
Long-term liabilities |  |  | (1,605 | )
Redeemable non-controlling interest |  |  | (13,284 | )
|  | $ | (15,097 | )
Cash consideration, net of cash acquired of $5,873 |  |  | (44,108 | )
Acquisition date fair value of contingent consideration |  |  | (14,566 | )
Total purchase consideration |  | $ | (58,674 | )
Acquired intangible assets |  | $ | 30,398 |
Goodwill |  | $ | 43,373 |
|  | Aggregate Acquisitions
Current assets |  | $ | 35,003 |
Non-current assets |  |  | 6,705 |
Current liabilities |  |  | (44,880 | )
Long-term liabilities |  |  | (9,734 | )
Redeemable non-controlling interest |  |  | (17,700 | )
Non-controlling interests |  |  | (255 | )
|  | $ | (30,861 | )
Note consideration |  | $ | (3,171 | )
Cash consideration, net of cash acquired of $11,427 |  |  | (91,559 | )
Acquisition date fair value of contingent consideration |  |  | (13,339 | )
Total purchase consideration |  | $ | (108,069 | )
Acquired intangible assets |  | $ | 39,369 |
Goodwill |  | $ | 99,561 |
Business Acquisition, Pro Forma Information [Table Text Block] |
|  | Revenues |  | Net earnings from continuing operations
Actual from acquired entities for 2016 |  | $ | 72,702 |  |  | $ | 1,939 |
Supplemental pro forma for 2016 (unaudited) |  |  | 1,926,462 |  |  |  | 94,152 |
Supplemental pro forma for 2015 (unaudited) |  |  | 1,902,724 |  |  |  | 52,762 |

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