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Note 3 - Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2014
Business Combinations [Abstract] |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] |
|  | Aggregate Acquisitions |
Current assets |  | $ | 35,641 |
Non-current assets |  |  | 8,157 |
Current liabilities |  |  | (45,980 | )
Long-term liabilities |  |  | (9,950 | )
Redeemable non-controlling interest |  |  | (19,376 | )
Non-controlling interests |  |  | (255 | )
|  | $ | (31,763 | )
Note consideration |  | $ | (3,611 | )
Cash consideration, net of cash acquired of $12,428 |  |  | (108,245 | )
Acquisition date fair value of contingent consideration |  |  | (17,838 | )
Total purchase consideration |  | $ | (129,694 | )
Acquired intangible assets |  | $ | 53,746 |
Goodwill |  | $ | 107,711 |
|  | Aggregate Acquisitions |
Current assets |  | $ | 25,723 |
Non-current assets |  |  | 2,733 |
Current liabilities |  |  | (35,308 | )
Long-term liabilities |  |  | (18,155 | )
Redeemable non-controlling interest |  |  | (43,531 | )
Non-controlling interests |  |  | (3,629 | )
|  | $ | (72,167 | )
Note consideration |  | $ | (776 | )
Cash consideration, net of cash acquired of $22,984 |  |  | (37,735 | )
Acquisition date fair value of contingent consideration |  |  | (9,556 | )
Total purchase consideration |  | $ | (48,067 | )
Gain on revaluation of previously held equity investment |  | $ | (820 | )
Acquired intangible assets |  | $ | 52,244 |
Goodwill |  | $ | 68,810 |
|  | Aggregate Acquisitions |
Current assets |  | $ | 30,427 |
Non-current assets |  |  | 3,164 |
Current liabilities |  |  | (21,169 | )
Long-term liabilities |  |  | (1,080 | )
Redeemable non-controlling interests |  |  | (753 | )
Non-controlling interests |  |  | (1,153 | )
|  | $ | 9,436 |
Note consideration |  | $ | (655 | )
Cash consideration, net of cash acquired of $419 |  |  | (19,153 | )
Acquisition date fair value of contingent consideration |  |  | (1,944 | )
Total purchase consideration |  | $ | (21,752 | )
Acquired intangible assets |  | $ | 7,420 |
Goodwill |  | $ | 4,896 |
Business Acquisition, Pro Forma Information [Table Text Block] |
| Revenues |  | Net earnings from continuing operations |
Actual from acquired entities for 2014 |  | $ | 97,507 |  |  | $ | 3,578 |
Supplemental pro forma for 2014 (unaudited) |  |  | 2,815,188 |  |  |  | 94,111 |
Supplemental pro forma for 2013 (unaudited) |  |  | 2,554,036 |  |  |  | 58,335 |
Supplemental pro forma for 2012 (unaudited) |  |  | 2,385,375 |  |  |  | 56,371 |

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- Definition Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1486-128463 + Details
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