XML 44 R23.htm IDEA: XBRL DOCUMENT v2.4.0.6

Net Income Per Share (Tables)

6 Months Ended

Jan. 31, 2012

Earnings Per Share [Abstract]

Reconciliation of basic weighted shares outstanding to diluted weighted average shares outstanding

							Three Months Ended January 31,												Six Months Ended January 31,
							2012						2011						2012						2011
	Basic weighted average shares outstanding						64,153						81,240						64,935						82,492
	Effect of dilutive securities - stock options						1,642						715						1,413						688
	Diluted weighted average shares outstanding						65,795						81,955						66,348						83,180

X

- Details

Name:	us-gaap_EarningsPerShareAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit).

+ References

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

-Topic 260

-SubTopic 10

-Publisher FASB

-Number

-Article

-Subparagraph

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

Name:	us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration