Earnings Per Share (Computation Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data	3 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Earnings Per Share [Abstract]
Net income	$ 11,690	$ 9,095
Denominator for basic earnings per share - weighted average shares outstanding during the period	43,930	42,823
Effect of dilutive stock options and unvested restricted stock	1,426	1,095
Denominator for diluted earnings per share - adjusted weighted average shares and assumed conversions	45,356	43,918
Basic net income per share	$ 0.27	$ 0.21
Diluted net income per share	$ 0.26	$ 0.21

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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-Glossary Weighted-Average Number of Common Shares Outstanding

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