Earnings Per Share (Narrative) (Details) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of options outstanding	2,247,583	2,120,656	1,813,656	1,896,994
Maximum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options exercise price range	24.46
Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options exercise price range	6.59
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of options outstanding	10,589,863
Stock Options [Member] | Maximum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options exercise price range	24.46
Stock Options [Member] | Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options exercise price range	7.98
Option on Common Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of options outstanding	8,955,000