Basis of Presentation (Details 2) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Reconciliation of basic earnings per share ("EPS") to diluted EPS
Net Income	$ 7,201	$ 7,078	$ 43,822
Basic weighted average shares outstanding	48,273	50,107
Dilutive effect of potential common stock equivalents - stock options (in shares)	64	58
Diluted weighted average shares outstanding	48,337	50,165
Earnings per common share - basic:
Basic (in dollars per share)	$ 0.15	$ 0.14
Earnings per common share - diluted:
Diluted (in dollars per share)	$ 0.15	$ 0.14
Potentially dilutive securities excluded from earnings per diluted share because their effect is anti-dilutive (in shares)	1,347	1,743

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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