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STOCK BASED COMPENSATION: (Tables) | 12 Months Ended
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Dec. 31, 2012
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract] |
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest |
|  |  |  |  | Weighted Average |
|  | Number |  |  | Grant Date |
(shares in thousands) |  | Outstanding |  |  | Fair Value |
Nonvested balance at January 1 2012 |  |  | - |  |  | $ | - |
Granted during the year |  |  | 39,643 |  |  |  | 36.88 |
Vested during the year |  |  | 13,212 |  |  |  | 30.24 |
Forfeited during the year |  |  | - |  |  |  | - |
Novested balance at December 31, 2012 |  |  | 26,431 |  |  |  | 36.88

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- Definition Tabular disclosure of the number, aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both restricted stock units outstanding and restricted stock units fully vested and expected to vest at the date of the latest statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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