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Note 15 - Financial Derivatives (Tables) | 3 Months Ended
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Mar. 31, 2021
Notes Tables |
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] |
|  | March 31, 2021 |  |  | December 31, 2020 |
Cash flow swap hedges: |  | (In thousands) |
Notional |  | $ | 119,136 |  |  | $ | 119,136 |
Weighted average fixed rate-pay |  |  | 2.61 | % |  |  | 2.61 | %
Weighted average variable rate-receive |  |  | 0.19 | % |  |  | 0.44 | %
Unrealized loss, net of taxes (1) |  | $ | (5,627 | ) |  | $ | (6,890 | )
|  | Three months ended |
|  | March 31, 2021 |  |  | March 31, 2020 |
Periodic net settlement of swaps (2) |  | $ | 711 |  |  | $ | 255 |
Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] |
|  | March 31, 2021 |  |  | December 31, 2020 |
Fair value swap hedges: |  | (In thousands) |
Notional |  | $ | 819,820 |  |  | $ | 478,266 |
Weighted average fixed rate-pay |  |  | 3.26 | % |  |  | 4.56 | %
Weighted average variable rate spread |  |  | 1.70 | % |  |  | 2.46 | %
Weighted average variable rate-receive |  |  | 1.82 | % |  |  | 3.11 | %
Net unrealized loss (1) |  | $ | (10,735 | ) |  | $ | (15,082 | )
|  | Three months ended |
|  | March 31, 2021 |  |  | March 31, 2020 |
Periodic net settlement of SWAPs (2) |  | $ | (2,387 | ) |  | $ | (643 | )
Derivatives Not Designated as Hedging Instruments [Table Text Block] |
|  | March 31, 2021 |  |  | December 31, 2020 |
Derivative financial instruments not designated as hedging instruments: |  | (In thousands) |
Notional amounts: |  |  |  |  |  |  |  |
Spot, forward, and swap contracts with positive fair value |  | $ | 154,340 |  |  | $ | 151,244 |
Spot, forward, and swap contracts with negative fair value |  | $ | 96,119 |  |  | $ | 132,813 |
Fair value: |  |  |  |  |  |  |  |
Spot, forward, and swap contracts with positive fair value |  | $ | 2,891 |  |  | $ | 4,658 |
Spot, forward, and swap contracts with negative fair value |  | $ | (2,550 | ) |  | $ | (2,200 | )

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- Definition Tabular disclosure for cash flow hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure for fair value hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of derivative instrument not designated or qualifying as hedging instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL109998890-113959 + Details
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