Retirement Benefits - Reconciliation of Benefit Obligations, Plan Assets and Funded Status Recognized in Consolidated Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Compensation And Retirement Disclosure [Abstract]
Benefit obligation at beginning of year	$ 183,249	$ 156,285
Benefit obligation of plans not previously reported	0	3,987
Service cost	2,169	1,635	3,292
Interest cost	7,085	8,106	7,702
Actuarial loss	2,530	31,484
Effects of settlements and curtailments	(3,805)	(921)	0
Plan amendments	0	216
Benefits paid	(9,125)	(7,817)
Foreign currency translation	1,269	(9,726)
Benefit obligation at end of year	183,372	183,249	156,285
Fair value of assets at beginning of year	7,011	5,258
Actual return on plan assets	(170)	1,571
Employer contributions	12,900	9,049
Benefits paid	(9,125)	(7,817)
Settlement	(3,593)	(921)
Foreign currency translation	(222)	(129)
Fair value of assets at end of year	6,801	7,011	5,258
Funded status	(176,571)	(176,238)
Unrecognized prior service cost	6,463	8,301
Unrecognized net loss	48,279	49,561
Accrued pension cost	(121,829)	(118,376)
Non-current assets	0	704
Accrued liabilities	(8,884)	(8,843)
Other non-current liabilities	(167,687)	(168,099)
AOCI	54,742	57,862
Accrued pension cost	$ (121,829)	$ (118,376)