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Note 23 - Accumulated Other Comprehensive Income - Components of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Balance at the beginning of the year | $ 5,181,951 | $ 4,901,765 |  | $ 4,769,526
Balance at the end of the year | 5,402,874 | 5,181,951 |  | 4,901,765
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |  |
Balance at the beginning of the year | 6,616 | 329 |  |
Other comprehensive income before reclassifications | (281) | (12,493) |  |
Amounts reclassified from AOCI |  | 18,780 | [1] |
Net current-period other comprehensive income | (281) | 6,287 |  |
Balance at the end of the year | 6,335 | 6,616 |  | 329
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] |  |  |  |
Balance at the beginning of the year | 398 | 46,197 |  |
Other comprehensive income before reclassifications | 8 | (5,946) |  |
Amounts reclassified from AOCI |  | (39,853) | [2] |
Net current-period other comprehensive income | 8 | (45,799) |  |
Balance at the end of the year | 406 | 398 |  | 46,197
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] |  |  |  |
Balance at the beginning of the year | (1,426) | (1,404) |  |
Other comprehensive income before reclassifications | 451 | (22) |  |
Amounts reclassified from AOCI |  |  |  |
Net current-period other comprehensive income | 451 | (22) |  |
Balance at the end of the year | (975) | (1,426) |  | (1,404)
AOCI Attributable to Parent [Member] |  |  |  |
Balance at the beginning of the year | 5,588 | 45,122 |  | (64,982)
Other comprehensive income before reclassifications | 178 | (18,461) |  |
Amounts reclassified from AOCI |  | (21,073) |  |
Net current-period other comprehensive income | 178 | (39,534) |  |
Balance at the end of the year | $ 5,766 | $ 5,588 |  | $ 45,122
[1] | During 2015, the Company recognized a cumulative foreign currency translation loss as a result of the liquidation of the Company's investment in Chile. Amounts were reclassified on the Company's Consolidated Statements of Income as follows (i) $19.6 million of loss was reclassified to Gain on sale of operating properties, net of tax, offset by (ii) $0.8 million of gain was reclassified to Equity in income of joint ventures, net.
[2] | Amounts reclassified to Interest, dividends and other investment income on the Company's Consolidated Statements of Income.

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