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ACQUISITIONS (Details) |  |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2011 GBP (£) | Dec. 25, 2010 GBP (£) | May 31, 2010 Delta, plc. GBPPerShare | Dec. 25, 2010 Delta, plc. USD ($) | Dec. 26, 2009 Delta, plc. USD ($) | May 12, 2010 Delta, plc. USD ($) | May 12, 2010 Delta, plc. GBP (£) | May 12, 2010 Delta, plc. Minimum employee | Jun. 24, 2011 Donhad USD ($) | Jun. 01, 2011 Irrigation monitoring services company USD ($)
Acquisition |  |  |  |  |  |  |  |  |  |
Price paid per share in cash |  |  | 0.185 |  |  |  |  |  |  |
Cash paid for acquisition |  |  |  |  |  | $ 436,736 | £ 284,463 |  | $ 25,253,000 | $ 1,539,000
Average exchange rate (in dollars per pound) | 1.5425 | 1.5442 |  |  |  |  | 1.5353 |  |  |
Number of employees |  |  |  |  |  |  |  | 2,500 |  |
Pro forma results of operations |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  | 2,167,923,000 | 2,307,949,000 |  |  |  |  |
Net earnings |  |  |  | $ 99,614,000 | $ 165,863,000 |  |  |  |  |
Earnings per share-diluted |  |  |  | $ 3.77 | $ 6.31 |  |  |  |  |
Ownership percentage acquired |  |  |  |  |  |  |  |  | 40.00% | 60.00%

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