SIGNIFICANT ACCOUNTING POLICIES: (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012 company
Postretirement health care and life insurance benefits:
Amount received on termination of certain split dollar agreements	$ 7,298
Equity method investment
Equity method investment ownership interest percentage (as a percent)	50.00%
Number of foreign companies that are accounted for using equity method	2
Pre-tax impairment charge	850
Adjusted carrying value	$ 2,127

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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