Fair Value Measurements (Narrative) (Details) (USD $)	Jun. 30, 2011	Jan. 24, 2011
Fair Value Measurements
Acquisition-related contingent consideration	$ 31,100,000	$ 28,900,000
Current acquisition-related liabilities	2,888,000
Noncurrent acquisition-related contingent consideration	24,110,000
Compensation related costs	$ 7,000,000

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

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+ Details