Consolidated Statements of Income (Parenthetical) (USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Favorable Manufacturing Contract
Intangible Assets (Excluding Goodwill) [Line Items]
Other Intangible Assets, Amortization Expense	$ 0.4	$ 0.4	$ 0.9	$ 0.9
Acquired Intellectual Property Rights
Intangible Assets (Excluding Goodwill) [Line Items]
Other Intangible Assets, Amortization Expense and Impairment Losses	$ 36.7	$ 33.8	$ 72.7	$ 68.4

Aggregate amount of amortization expense recognized for intangible asset during the period. A recognized intangible asset shall be amortized over its estimated useful life to the reporting entity unless that life is determined to be indefinite. If an intangible asset has a finite useful life, but the precise length of that life is not known, that intangible asset shall be amortized over the best estimate of its useful life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(2)

Name:	us-gaap_FiniteLivedIntangibleAssetsAmortizationExpense
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration