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Comprehensive Income (Tables) | 6 Months Ended
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Nov. 30, 2011
Comprehensive Income |
Summary of the components of comprehensive income (loss) |
|  | Three Months Ended |  | Six Months Ended |
|  | November 30, |  | November 30, |
|  | 2011 |  | 2010 |  | 2011 |  | 2010 |
Net income |  | $ | 17,532 |  | $ | 16,814 |  | $ | 34,181 |  | $ | 30,488 |
Other comprehensive income (loss) — |  |  |  |  |  |  |  |  |
Cumulative translation adjustments |  | (872 | ) | 972 |  | (774 | ) | 1,082 |
Unrealized loss on derivative instruments, net of tax |  | (221 | ) | — |  | (2,736 | ) | — |
Total comprehensive income |  | $ | 16,439 |  | $ | 17,786 |  | $ | 30,671 |  | $ | 31,570 |

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- Definition Tabular disclosure of components of comprehensive income (loss) including, but not limited to: (a) foreign currency translation adjustments; (b) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (c) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (d) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (e) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (f) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (g) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 220 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 45 -URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e526-108580 + Details
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