v2.4.0.8

Segment and Geographic Information - Additional Information (Details) (USD $)	3 Months Ended							9 Months Ended		12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2011	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information
Number of operating segments								3		3
Gain on lawsuit settlements		$ 700,000	$ 500,000	$ 8,400,000	$ 8,300,000				$ 17,200,000	$ 17,900,000
Change in fair value of contingent consideration liabilities	(712,000)	200,000	(1,892,000)	(1,200,000)	1,300,000	(200,000)	1,600,000	(1,765,000)	(1,787,000)	(1,643,000)	1,408,000	0
Restructuring and acquisition related expenses	2,206,000		116,000					7,391,000	2,558,000	2,751,000	7,590,000	668,000
North America
Segment Reporting Information
Number of reportable segments								1		1
Gain on lawsuit settlements			500,000						17,200,000	17,900,000
Change in fair value of contingent consideration liabilities										2,000,000	2,000,000
Europe
Segment Reporting Information
Change in fair value of contingent consideration liabilities	800,000		2,100,000					(2,700,000)	(1,900,000)	(3,600,000)		(600,000)
Restructuring and acquisition related expenses	$ 1,600,000							$ 5,300,000

X

- Definition

Amount of gain recognized in the period that had been disclosed in the prior periods as a contingent gain.

+ References

No definition available.

+ Details

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X

- Definition

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. Additionally, this element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

No definition available.

+ Details

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X

- Definition

This element represents the amount of any change, including any differences arising upon settlement, recognized during the reporting period in the value of a liability, arising from an item of contingent consideration, assumed in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e7008-128479



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 72

-Subparagraph b

-Clause 1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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X

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

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X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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Balance Type:	na
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X

- Details

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