Note 2. Acquisition (Detail) - Summarized Results of Operations (Pro Forma) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Feb. 29, 2012	Feb. 28, 2011	Feb. 29, 2012	Feb. 28, 2011
Revenue	$ 81,370	$ 83,349	$ 250,705	$ 248,536
Net loss	$ (9,131)	$ (441)	$ (47,245)	$ (4,225)

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463

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