Income Taxes - Additional Information (Details) (USD $)	3 Months Ended		9 Months Ended
Income Taxes - Additional Information (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Operating Loss Carryforwards [Line Items]
(Benefit from) provision for income taxes	$ (17,135,000)	$ (5,701,000)	$ (18,230,000)	$ (939,000)
(Loss) income before income taxes	(9,257,000)	2,146,000	(16,712,000)	(1,794,000)
Effective tax rate	185.10%		109.10%
Interest and penalties related to uncertain tax positions	8,700,000		8,700,000		8,500,000
Voxeo Corporation
Operating Loss Carryforwards [Line Items]
(Benefit from) provision for income taxes			$ (12,900,000)

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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- Definition

This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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Aspect Software Group Holdings Ltd. 10-Q