Goodwill And Intangible Assets (Schedule Of Gross Carrying Amount And Accumulated Amortization Of Intangible Assets Other Than Goodwill) (Details) (USD $) In Thousands	Sep. 30, 2011	Jun. 30, 2011
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 56,906	$ 42,797
Accumulated Amortization	(14,964)	(14,065)
Net Book Value	41,942	28,732
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	23,104	16,009
Accumulated Amortization	(6,330)	(5,843)
Net Book Value	16,774	10,166
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,135	11,074
Accumulated Amortization	(832)	(811)
Net Book Value	10,303	10,263
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	21,280	14,327
Accumulated Amortization	(6,415)	(6,024)
Net Book Value	14,865	8,303
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,387	1,387
Accumulated Amortization	$ (1,387)	$ (1,387)