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Note 4 - Acquisitions - Acquisitions Details (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Current assets, excluding cash | $ 106,843 | $ 29,720
Warehouse receivables | 31,282 |
Non-current assets | 49,986 | 7,989
Current liabilities | (91,619) | (18,616)
Warehouse credit facilities | (25,850) |
Long-term liabilities | (63,956) | (11,913)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total | 6,686 | 7,180
Cash consideration, net of cash acquired | (205,608) | (80,576)
Acquisition date fair value of contingent consideration | (23,717) |
Total purchase consideration | (229,325) | (80,576)
Indefinite life | 29,200 |
Finite life | 167,680 |
Goodwill | 117,984 | 58,221
Redeemable non-controlling interest | 92,225 |
Acquired intangible assets |  | (42,226)
Redeemable non-controlling interest |  | 27,051
Actual from acquired entities, Revenues | 194,977 |
Actual from acquired entities, Net earnings from continuing operations | 24,449 |
Supplemental pro forma revenues (unaudited), Revenues | 2,927,994 | 3,378,981
Supplemental pro forma net earnings (unaudited), Net earnings from continuing operations | 104,662 | $ 163,942
Colliers Mortgage [Member] |  |
Current assets, excluding cash | 46,510 |
Warehouse receivables | 31,282 |
Non-current assets | 9,021 |
Current liabilities | (55,881) |
Warehouse credit facilities | (25,850) |
Long-term liabilities | (6,266) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total | (1,184) |
Cash consideration, net of cash acquired | (134,204) |
Acquisition date fair value of contingent consideration | (9,250) |
Total purchase consideration | (143,454) |
Indefinite life | 29,200 |
Finite life | 105,150 |
Goodwill | 53,530 |
Redeemable non-controlling interest | 43,242 |
Maser Consulting P.A. [Member] |  |
Current assets, excluding cash | 57,533 |
Warehouse receivables |  |
Non-current assets | 37,516 |
Current liabilities | (32,582) |
Warehouse credit facilities |  |
Long-term liabilities | (54,739) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total | 7,728 |
Cash consideration, net of cash acquired | (59,355) |
Acquisition date fair value of contingent consideration | (12,204) |
Total purchase consideration | (71,559) |
Indefinite life |  |
Finite life | 51,100 |
Goodwill | 56,838 |
Redeemable non-controlling interest | 44,107 |
Other Acquisitions [Member] |  |
Current assets, excluding cash | 2,800 |
Warehouse receivables |  |
Non-current assets | 3,449 |
Current liabilities | (3,156) |
Warehouse credit facilities |  |
Long-term liabilities | (2,951) |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total | 142 |
Cash consideration, net of cash acquired | (12,049) |
Acquisition date fair value of contingent consideration | (2,263) |
Total purchase consideration | (14,312) |
Indefinite life |  |
Finite life | 11,430 |
Goodwill | 7,616 |
Redeemable non-controlling interest | $ 4,876 |

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- Definition This element represents the fair value of the redeemable noncontrolling interest in the acquiree at the acquisition date. + References No definition available. + Details
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- Definition Amount of assets, excluding cash and equivalents, that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References No definition available. + Details
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- Definition Amount of mortgage loans held for sale acquired at the acquisition date. + References No definition available. + Details
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- Definition Amount of warehouse credit facilities assumed at the acquisition date. + References No definition available. + Details
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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
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- Definition This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition Amount of liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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- Definition The amount of identifiable intangible assets recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=121600890&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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