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Earnings Per Share (Tables)

9 Months Ended

Apr. 30, 2012

Earnings Per Share [Abstract]

Schedule of numerators and denominators used in basic and diluted EPS calculations

		Three months ended April 30,				Nine months ended April 30,
		2012		2011		2012		2011
Numerator:
Net income for basic calculation		$  6,066,000		14,255,000		24,488,000		56,007,000
Effect of dilutive securities:
Interest expense (net of tax) on 3.0% convertible senior notes		1,117,000		1,117,000		3,351,000		3,351,000
Numerator for diluted calculation		$  7,183,000		15,372,000		27,839,000		59,358,000
Denominator:
Denominator for basic calculation		18,853,000		26,577,000		20,746,000		27,310,000
Effect of dilutive securities:
Stock options		263,000		210,000		236,000		219,000
Conversion of 3.0% convertible senior notes		5,794,000		5,591,000		5,742,000		5,540,000
Denominator for diluted calculation		24,910,000		32,378,000		26,724,000		33,069,000

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- Definition

Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

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

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