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Note 22 - Segment Information - Revenues and Long-lived Assets by Geographic Location (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Revenues | $ 2,275,362 | $ 1,896,724
Total long-lived assets | 722,065 | 552,837
UNITED STATES |  |
Revenues | 984,740 | 734,488
Total long-lived assets | 281,588 | 178,908
CANADA |  |
Revenues | 288,537 | 253,529
Total long-lived assets | 61,158 | 52,547
Euro Currency Countries [Member] |  |
Revenues | 261,821 | 261,626
Total long-lived assets | 191,934 | 174,932
AUSTRALIA |  |
Revenues | 245,385 | 219,406
Total long-lived assets | 50,843 | 43,808
UNITED KINGDOM |  |
Revenues | 166,685 | 137,216
Total long-lived assets | 75,745 | 69,565
Other Geographic Locations [Member] |  |
Revenues | 328,194 | 290,459
Total long-lived assets | $ 60,797 | $ 33,077

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599 + Details
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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