Nature Of Business And Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 days
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Impairment losses recognized	$ 0
Number of days allowed to the customer to return product for expiration or damage	30
Royalty revenues	0
Advertising expense	$ 10.7
Minimum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Performance obligation periods of each agreement, years	2 years
Estimated life of certain in-licensed technology, in years	6
Maximum [Member]
Nature Of Business And Summary Of Significant Accounting Policies [Line Items]
Performance obligation periods of each agreement, years	14 years
Estimated life of certain in-licensed technology, in years	10