Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares.

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+ Details

Acquisitions (Details) In Millions, unless otherwise specified	May 28, 2010 USD ($)	Jun. 30, 2011 Auralis Limited [Member] GBP (£)	Jun. 30, 2011 Auralis Limited [Member] USD ($)	May 28, 2010 Auralis Limited [Member] GBP (£)	May 28, 2010 Auralis Limited [Member] USD ($)
Ownership interest				100.00%	100.00%
Upfront cash payment of acquisition					$ 14.5
Contingent consideration, potential cash payment		10.0	16.0
Fair value of contingent consideration	$ 9.0			£ 6.2