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Note 6 - Fair Value of Assets and Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2018
Notes Tables |
Fair Value, Assets Measured on Recurring Basis [Table Text Block] |
|  | Fair Value Measurements Using |  |  |  |  |
(in thousands ) |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |  |  | Total |
Investments in equity securities |  | $ | 14,754 |  |  | $ | — |  |  | $ | — |  |  | $ | 14,754 |
Mutual funds |  |  | 9,852 |  |  |  | — |  |  |  | — |  |  |  | 9,852 |
|  | Fair Value Measurements Using |  |  |  |  |
(in thousands ) |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Unobservable Inputs (Level 3) |  |  | Total |
Investments in equity securities |  | $ | 10,993 |  |  | $ | — |  |  | $ | — |  |  | $ | 10,993 |
Mutual funds |  |  | 7,962 |  |  |  | — |  |  |  | — |  |  |  | 7,962 |
Fair Value, by Balance Sheet Grouping [Table Text Block] |
|  | March 31 , 201 8 |  |  | December 30 , 201 7 |
(in thousands ) |  | Carrying Value |  |  | Estimated Fair Value |  |  | Carrying Value |  |  | Estimated Fair Value |
Euro Senior Notes, Series A due 2023 |  | $ | 144,041 |  |  | $ | 142,038 |  |  | $ | 139,623 |  |  | $ | 138,294 |
Euro Senior Notes, Series B due 2028 |  |  | 116,956 |  |  |  | 113,953 |  |  |  | 113,369 |  |  |  | 111,579 |
USD Senior Notes, Series A due 2022 |  |  | 25,000 |  |  |  | 24,301 |  |  |  | 25,000 |  |  |  | 24,737 |
USD Senior Notes, Series B due 2027 |  |  | 100,000 |  |  |  | 96,475 |  |  |  | 100,000 |  |  |  | 99,992 |
USD Senior Notes, Series A due 2025 |  |  | 50,000 |  |  |  | 48,081 |  |  |  | — |  |  |  | — |
USD Senior Notes, Series B due 2030 |  |  | 125,000 |  |  |  | 118,303 |  |  |  | — |  |  |  | — |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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