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Acquisitions (Narrative) (Details) (VasoNova Inc., [Member], USD $) In Millions, unless otherwise specified | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 26, 2011 Purchased Technology [Member] | Jun. 26, 2011 Trade Names [Member] | Mar. 31, 2011 | Jan. 10, 2011 | Jan. 10, 2011 Maximum [Member] | Jan. 10, 2011 Minimum [Member]
Outstanding equity acquired, percentage |  |  |  | 100.00% |  |
Payment to the former security holders |  |  | $ 6.0 | $ 24.9 |  |
Additional agreed contingent payments upon the achievement of certain regulatory and sales targets |  |  |  |  | 30.0 | 15.0
Estimated fair value of the consideration |  |  |  | 40.3 |  |
Estimated fair value of contingent consideration to be paid to former security holders |  |  |  | 15.4 |  |
Estimated fair values of intangible assets acquired | $ 26.8 | $ 2.8 |  |  |  |
Useful life of intangible assets acquired, years | 15 | 10 |  |  |  |

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