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New Accounting Pronouncements Not Yet Adopted (Details)
9 Months Ended
Sep. 30, 2011
Accounting Standards Update 2011-04 [Member]
 
New Accounting Pronouncement or Change in Accounting Principle, NameAccounting Standards Update No. 2011-04, Fair Value Measurement (Topic 820)–Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS ("Update 2011-04")
New Accounting Pronouncement or Change in Accounting Principle, Description
Accounting Standards Update 2011-05 [Member]
 
New Accounting Pronouncement or Change in Accounting Principle, NameAccounting Standards Update No. 2011-05, Presentation of Comprehensive Income ("Update 2011-05"), which amends Topic 200, Comprehensive Income. Update 2011-05
New Accounting Pronouncement or Change in Accounting Principle, Description