Segment Information (Details) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Revenue from external sources	$ 1,514,457,000	$ 1,368,515,000	$ 1,243,148,000
Long lived assets	411,433,000	434,363,000	462,107,000
North and Latin America [Member]
Revenue from external sources	851,608,000	749,039,000	662,240,000
Long lived assets	136,984,000	142,853,000	148,840,000
GERMANY
Revenue from external sources	195,091,000	181,421,000	171,394,000
Long lived assets	24,855,000	27,489,000	26,320,000
FRANCE
Revenue from external sources	138,891,000	139,286,000	137,330,000
Long lived assets	6,282,000	4,870,000	6,276,000
AUSTRALIA
Revenue from external sources	35,503,000	35,654,000	34,975,000
Long lived assets	222,814,000	245,273,000	268,695,000
Rest Of World [Member]
Revenue from external sources	293,364,000	263,115,000	237,209,000
Long lived assets	20,498,000	13,878,000	11,976,000
Flow Generators [Member]
Segment sales	823,500,000	736,600,000	699,300,000
Mask Systems, Motors And Other Accessories [Member]
Segment sales	$ 690,900,000	$ 631,900,000	$ 543,900,000