NON-CONTROLLING INTEREST: (Details) (USD $)	3 Months Ended	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Non-controlling interest activity
Balance at the beginning of the period			$ 19,961,000	$ 18,000,000
Comprehensive income	2,346,000	2,029,000	6,451,000	5,936,000
Dividend paid	(1,350,000)	(1,689,000)	(4,955,000)	(4,660,000)
Other			(700,000)
Balance at the end of the period	$ 20,701,000	$ 19,200,000	$ 20,701,000	$ 19,200,000

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to noncontrolling interests, if any. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest).

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