Financial Data By Segment (Schedule Of Revenues And Assets By Geographic Area) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Schedule Of Geographical Information [Line Items]
Revenues	$ 2,303.5	$ 2,166.9	$ 2,209.2
Assets	1,987.6	1,904.0	1,794.4
United States [Member]
Schedule Of Geographical Information [Line Items]
Revenues	1,997.8	1,857.8	1,929.6
Assets	1,700.0	1,639.7	1,560.1
Canada [Member]
Schedule Of Geographical Information [Line Items]
Revenues	243.8	251.5	241.9
Assets	108.8	85.9	67.0
United Kingdom [Member]
Schedule Of Geographical Information [Line Items]
Revenues	24.3	22.3	13.9
Assets	114.0	115.4	121.3
Others [Member]
Schedule Of Geographical Information [Line Items]
Revenues	37.6	35.3	23.8
Assets	$ 64.8	$ 63.0	$ 46.0