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Note 9 - Accumulated Other Comprehensive Income (Details) - Reconciliation of Net Income to Comprehensive Income (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Reconciliation of Net Income to Comprehensive Income [Abstract] |  |  |  |
Net Income | $ 23,478 | $ 15,179 | $ 55,330 | $ 34,358
Other comprehensive income, before tax: |  |  |  |
Change in fair value of interest rate swaps | 216 | 165 | 587 | 691
Change in fair value of available-for-sale securities |  |  | 184 |
Unrealized gain on available-for-sale securities |  |  | 150 |
Other comprehensive income, before tax | 216 | 165 | 921 | 691
Income tax expense related to components of other comprehensive income | 84 | 64 | 359 | 266
Other comprehensive income, net of tax | 132 | 101 | 562 | 425
Comprehensive income | $ 23,610 | $ 15,280 | $ 55,892 | $ 34,783

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=6519514 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Comprehensive Income -URI http://asc.fasb.org/extlink&oid=35737396 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e557-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=6518256 + Details
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