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Note 3 - Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2018
Notes Tables |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] |
|  | Finland |  |  | Harrison Street |  |  | Other |  |  | Aggregate Acquisitions |
Current assets, excluding cash |  | $ | 4,734 |  |  | $ | 16,948 |  |  | $ | 31,623 |  |  | $ | 53,305 |
Non-current assets |  |  | 2,581 |  |  |  | 4,678 |  |  |  | 3,616 |  |  |  | 10,875 |
Current liabilities |  |  | (9,421 | ) |  |  | (14,544 | ) |  |  | (27,853 | ) |  |  | (51,818 | )
Long-term liabilities |  |  | (6,072 | ) |  |  | - |  |  |  | (15,608 | ) |  |  | (21,680 | )
|  | $ | (8,178 | ) |  | $ | 7,082 |  |  | $ | (8,222 | ) |  | $ | (9,318 | )
Cash consideration, net of cash acquired of $23,777 |  | $ | (57,287 | ) |  | $ | (447,513 | ) |  | $ | (81,442 | ) |  | $ | (586,242 | )
Acquisition date fair value of contingent consideration |  |  | - |  |  |  | (40,889 | ) |  |  | (19,212 | ) |  |  | (60,101 | )
Total purchase consideration |  | $ | (57,287 | ) |  | $ | (488,402 | ) |  | $ | (100,654 | ) |  | $ | (646,343 | )
Acquired intangible assets |  | $ | 26,841 |  |  | $ | 278,600 |  |  | $ | 69,495 |  |  | $ | 374,936 |
Acquired goodwill |  | $ | 38,624 |  |  | $ | 366,350 |  |  | $ | 60,708 |  |  | $ | 465,682 |
Redeemable non-controlling interest |  | $ | - |  |  | $ | 163,630 |  |  | $ | 21,327 |  |  | $ | 184,957 |
|  | Northern California & Nevada |  |  | Other |  |  | Aggregate Acquisitions |
Current assets, excluding cash |  | $ | 8,503 |  |  | $ | 5,420 |  |  | $ | 13,923 |
Non-current assets |  |  | 2,268 |  |  |  | 1,117 |  |  |  | 3,385 |
Current liabilities |  |  | (38,481 | ) |  |  | (10,463 | ) |  |  | (48,944 | )
Long-term liabilities |  |  | (10,600 | ) |  |  | (3,084 | ) |  |  | (13,684 | )
|  | $ | (38,310 | ) |  | $ | (7,010 | ) |  | $ | (45,320 | )
Cash consideration, net of cash acquired of $41,989 |  | $ | (22,696 | ) |  | $ | (35,978 | ) |  | $ | (58,674 | )
Acquisition date fair value of contingent consideration |  |  | (10,412 | ) |  |  | (9,135 | ) |  |  | (19,547 | )
Total purchase consideration |  | $ | (33,108 | ) |  | $ | (45,113 | ) |  | $ | (78,221 | )
Acquired intangible assets |  | $ | 28,800 |  |  | $ | 32,428 |  |  | $ | 61,228 |
Acquired goodwill |  | $ | 42,618 |  |  | $ | 35,953 |  |  | $ | 78,571 |
Redeemable non-controlling interest |  | $ | - |  |  | $ | 16,258 |  |  | $ | 16,258 |
|  | Revenues |  |  | Net earnings |
Actual from acquired entities for 2018 |  | $ | 196,480 |  |  | $ | 10,879 |
Supplemental pro forma for 2018 (unaudited) |  |  | 2,934,211 |  |  |  | 139,297 |
Supplemental pro forma for 2017 (unaudited) |  |  | 2,738,081 |  |  |  | 118,078 |

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