Income Taxes Income Taxes (Narrative) (Details) (USD $)	3 Months Ended			12 Months Ended
	Mar. 31, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate				$ 1,178,000
Undistributed Earnings of Foreign Subsidiaries				38,225,000
Deferred Tax Assets, Tax Credit Carryforwards, Foreign				1,012,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate				35.00%	35.00%	35.00%
Income Taxes Paid				21,902,000	34,297,000	12,335,000
UK Operating Loss Carryforwards And Deferred Tax Assets Valuation Allowances				4,594,000
Federal Tax Net Operating Losses Carryforwards				3,551,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign				2,114,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense				(135,000)	224,000	113,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued		287,000		152,000	287,000
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	840,000	1,000,000		(840,000)	(1,000,000)	0
Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities			$ 0
Open Tax Year				2008