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Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2011 | Nov. 30, 2010 | Nov. 30, 2011 | Nov. 30, 2010
Sales: |  |  |  |
Sales from products | $ 315,047 | $ 312,953 | $ 642,945 | $ 594,709
Sales from services | 160,855 | 127,569 | 312,247 | 250,206
Total sales | 475,902 | 440,522 | 955,192 | 844,915
Costs and operating expenses: |  |  |  |
Cost of products | 278,064 | 269,382 | 565,426 | 506,591
Cost of services | 120,682 | 97,462 | 237,770 | 194,645
Selling, general and administrative | 43,134 | 40,874 | 84,864 | 82,116
Total cost and operating expenses | 441,880 | 407,718 | 888,060 | 783,352
Earnings from joint ventures | 259 | 2,529 | 464 | 2,557
Operating income | 34,281 | 35,333 | 67,596 | 64,120
Gain on extinguishment of debt |  |  |  | 97
Interest expense | (7,869) | (7,579) | (15,387) | (15,012)
Interest income | 335 | 76 | 439 | 236
Income from continuing operations before provision for income taxes | 26,747 | 27,830 | 52,648 | 49,441
Provision for income taxes | 9,228 | 9,740 | 18,166 | 17,304
Income from continuing operations | 17,519 | 18,090 | 34,482 | 32,137
Discontinued operations, net of tax | 13 | (1,276) | (301) | (1,649)
Net income | $ 17,532 | $ 16,814 | $ 34,181 | $ 30,488
Earnings per share - basic: |  |  |  |
Earnings from continuing operations (in dollars per share) | $ 0.44 | $ 0.47 | $ 0.86 | $ 0.84
Income (Loss) from discontinued operations (in dollars per share) | $ 0.00 | $ (0.03) | $ (0.01) | $ (0.04)
Earnings per share - basic (in dollars per share) | $ 0.44 | $ 0.44 | $ 0.85 | $ 0.80
Earnings per share - diluted: |  |  |  |
Earnings from continuing operations (in dollars per share) | $ 0.43 | $ 0.45 | $ 0.84 | $ 0.81
Income (loss) from discontinued operations (in dollars per share) | $ 0.00 | $ (0.03) | $ (0.01) | $ (0.04)
Earnings per share - diluted (in dollars per share) | $ 0.43 | $ 0.42 | $ 0.83 | $ 0.77

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