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ACQUISITIONS (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 0 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 19, 2012 Pure Metal Galvanizing item | Dec. 25, 2010 Delta | May 12, 2010 Delta | Jun. 30, 2011 Donhad | Jun. 30, 2011 Irrigation monitoring services company
Acquisition |  |  |  |  |
Cash paid for acquisition | $ 45,687 |  | $ 237,926 | $ 25,253 | $ 1,539
Fair value of contingent consideration | 3,884 |  |  |  |
Period at the end of which contingent consideration is to be paid | 5 years |  |  |  |
Number of custom galvanizing operations | 3 |  |  |  |
Goodwill | 12,676 |  |  |  |
Customer relationships, trade name and other intangible assets | 14,066 |  |  |  |
Ownership percentage acquired |  |  |  | 40.00% | 60.00%
Pro forma results of operations |  |  |  |  |
Net sales |  | 2,167,923 |  |  |
Net earnings |  | $ 99,614 |  |  |
Earnings per share-diluted |  | $ 3.77 |  |  |

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