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Schedule of Restructuring Accruals Expenses (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Beginning Balance		$ 10,887
Restructuring expenses	(2,581)		(7,519)
Payments/utilization		(9,555)
Ending Balance		$ 1,332

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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