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Note 16 - Employee Benefit Plans - Target Asset Allocations (Details) | Jun. 30, 2020
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U.S. Pension Plans [Member] |
Target asset allocations | 100.00%
U.K. Pension Plans [Member] |
Target asset allocations | 100.00%
Equity Securities [Member] | U.S. Pension Plans [Member] |
Target asset allocations | 40.00%
Equity Securities [Member] | U.K. Pension Plans [Member] |
Target asset allocations | 0.00%
Debt Securities [Member] | U.S. Pension Plans [Member] |
Target asset allocations | 38.00%
Debt Securities [Member] | U.K. Pension Plans [Member] |
Target asset allocations | 70.00%
Hedge Funds, Global Opportunity [Member] | U.S. Pension Plans [Member] |
Target asset allocations | 12.00%
Hedge Funds, Global Opportunity [Member] | U.K. Pension Plans [Member] |
Target asset allocations | 29.00%
Other Debt Obligations [Member] | U.S. Pension Plans [Member] |
Target asset allocations | 10.00%
Other Debt Obligations [Member] | U.K. Pension Plans [Member] |
Target asset allocations | 1.00%

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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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