Retirement Benefits (Components Of Net Periodic Benefit Costs) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Employee Benefit Plans [Line Items]
Service cost	$ 1,635	$ 3,292	$ 2,165
Interest cost	8,106	7,702	7,585
Expected return on plan assets	(238)	(221)	0
Amortization of prior service cost	1,169	1,502	1,407
Amortization of net loss	1,793	1,899	1,122
Effect of settlements and curtailments	921	0	1,452
Net periodic benefit cost	$ 12,797	$ 14,174	$ 13,731