Note 4 - Non-Operating Income (Detail) - Non-operating income (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Non-operating Income	$ 5,907	$ 5,155	$ 11,775	$ 9,716
Equity in Earnings of Unconsolidated Investments [Member]
Non-operating Income	3,212	2,657	6,016	4,738
Dividends and Other Net Realized Gains and Losses on Sales of Securities [Member]
Non-operating Income	1,540	1,248	3,467	2,519
Interest Income [Member]
Non-operating Income	$ 1,155	$ 1,250	$ 2,292	$ 2,459

- 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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