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Industry Segment Information (Tables) | 12 Months Ended
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Aug. 31, 2013
Industry Segment Information [Abstract] |
Schedule Of Segment Reporting Information, By Segment |
$ in thousands |  | 2013 |  | 2012 |  | 2011
Operating revenues: |  |  |  |  |  |  |  |  |
Irrigation |  | $ | 625,996 |  | $ | 475,299 |  | $ | 369,930
Infrastructure |  |  | 64,852 |  |  | 75,956 |  |  | 108,960
Total operating revenues |  | $ | 690,848 |  | $ | 551,255 |  | $ | 478,890
Operating income: |  |  |  |  |  |  |  |  |
Irrigation |  | $ | 125,395 |  | $ | 80,259 |  | $ | 59,703
Infrastructure |  |  | (811) |  |  | (11) |  |  | 11,901
Segment operating income |  | $ | 124,584 |  | $ | 80,248 |  | $ | 71,604
Unallocated general and administrative expenses |  |  | (17,523) |  |  | (14,738) |  |  | (15,018)
Interest and other income (expense), net |  |  | 246 |  |  | (402) |  |  | (72)
Earnings before income taxes |  | $ | 107,307 |  | $ | 65,108 |  | $ | 56,514
Total Capital Expenditures: |  |  |  |  |  |  |  |  |
Irrigation |  | $ | 10,687 |  | $ | 7,942 |  | $ | 5,490
Infrastructure |  |  | 449 |  |  | 1,948 |  |  | 2,915
|  | $ | 11,136 |  | $ | 9,890 |  | $ | 8,405
Total Depreciation and Amortization: |  |  |  |  |  |  |  |  |
Irrigation |  | $ | 7,147 |  | $ | 6,959 |  | $ | 6,009
Infrastructure |  |  | 5,453 |  |  | 5,509 |  |  | 5,725
|  | $ | 12,600 |  | $ | 12,468 |  | $ | 11,734
Total Assets: |  |  |  |  |  |  |  |  |
Irrigation |  | $ | 391,527 |  | $ | 303,741 |  | $ | 267,275
Infrastructure |  |  | 120,769 |  |  | 111,790 |  |  | 113,869
|  | $ | 512,296 |  | $ | 415,531 |  | $ | 381,144
Schedule Of Revenue And Long-Lived Assets By Geographical Areas |
|  |  | For the years ended August 31,
$ in thousands |  |  | 2013 |  |  | 2012 |  |  | 2011
|  |  |  |  | % of Total |  |  |  |  | % of Total |  |  |  |  | % of Total
|  | Revenues |  | Revenues |  | Revenues |  | Revenues |  | Revenues |  | Revenues
United States |  | $ | 428,929 |  | 62 |  | $ | 354,649 |  | 64 |  | $ | 307,694 |  | 64
International |  |  | 261,919 |  | 38 |  |  | 196,606 |  | 36 |  |  | 171,196 |  | 36
Total Revenues |  | $ | 690,848 |  | 100 |  | $ | 551,255 |  | 100 |  | $ | 478,890 |  | 100
|  |  | For the years ended August 31,
$ in thousands |  |  | 2013 |  |  | 2012 |  |  | 2011
|  |  |  |  | % of Total |  |  |  |  | % of Total |  |  |  |  | % of Total
|  | Long-Lived Tangible Assets |  | Long-Lived Tangible Assets |  | Long-Lived Tangible Assets |  | Long-Lived Tangible Assets |  | Long-Lived Tangible Assets |  | Long-Lived Tangible Assets
United States |  | $ | 53,894 |  | 83 |  | $ | 45,100 |  | 80 |  | $ | 45,091 |  | 77
International |  |  | 11,170 |  | 17 |  |  | 11,080 |  | 20 |  |  | 13,374 |  | 23
Total Long-Lived Assets |  | $ | 65,064 |  | 100 |  | $ | 56,180 |  | 100 |  | $ | 58,465 |  | 100

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8736-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8813-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27, 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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