Fair Value Measurements - Level 3 Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015
Contingent consideration
Total losses (gains) for the period:
Beginning Balance	$ 71,567
Included in results of operations	5,175
Foreign currency impact	(231)
Ending Balance	76,511
Embedded conversion option
Total losses (gains) for the period:
Beginning Balance	65,947
Included in results of operations	53,730
Conversion	(51,890)
Ending Balance	$ 67,787

Debt Conversion, Embedded Derivative, Amount

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- Definition

Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Foreign Currency Impact

+ References

No definition available.

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- Details

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- Definition

Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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