Note 4 - Non-Operating Income (Detail) - Non-operating income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Non-operating Income	$ 6,618	$ 5,868
Equity in Earnings of Unconsolidated Investments [Member]
Non-operating Income	3,806	2,804
Dividends and Other Net Realized Gains and Losses on Sales of Securities [Member]
Non-operating Income	1,461	1,927
Interest Income [Member]
Non-operating Income	$ 1,351	$ 1,137

- Definition

The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items.

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