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Restructuring Impairment Charges - Summary of Severance Accrual Activity (Detail) (Employee Severance, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Jun. 30, 2012
Employee Severance
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 3,907	$ 4,545
Provisions	200	1,273
Payments	(1,372)	(1,911)
Ending Balance	$ 2,735	$ 3,907

Net total Increase or Decrease in the accrual for restructuring costs during the reporting period.

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.