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Reorganization - Summary of Rolls Forward of Activity in Reorganization Accrual (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013
Restructuring Cost and Reserve [Line Items]
Additions	$ (71)	$ 1,817	$ 1,905
Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Accrual Beginning Balance		121
Additions		1,817
Cash payments		(1,509)
Accrual Ending Balance	$ 429	$ 429

- 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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