Restructuring (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Mar. 31, 2012 2012 Plan [Member]	Jun. 30, 2012 2010 Plan [Member]
Restructuring (Textual) [Abstract]
Severance costs				$ 0.9
Restructuring charges related to a global reduction in force	(0.1)	0.8			5.0
Severance costs reserve	0.5	0.5	0.3
Released remaining restructuring cost					$ 0.1

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

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The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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