New Accounting Standards	9 Months Ended
Sep. 30, 2011
Change in Accounting Estimate [Abstract]
New Accounting Standards	New Accounting Standards In May 2011, the FASB issued ASC Update 2011-04, “Amendments to Achieve Common Fair Value Measurements and Disclosure Requirements in U.S. GAAP and IFRSs” (ASC Update 2011-04). ASC Update 2011-04 amends fair value measurement and disclosure requirements in U.S. GAAP for the purpose of improving the comparability of fair value measurements presented and disclosed in financial statements prepared in accordance with U.S. GAAP and International Financial Reporting Standards (IFRS). Among the amendments in ASC Update 2011-04 are expanded disclosure requirements that require companies to quantitatively disclose inputs used in Level 3 fair value measurements and to qualitatively disclose the sensitivity of fair value measurement to changes in unobservable inputs. This standards update is effective for the first interim or annual period beginning on or after December 15, 2011. For the Corporation, this standards update is effective in connection with its March 31, 2012 interim filing on Form 10-Q. The adoption of ASC Update 2011-04 is not expected to materially impact the Corporation’s financial statements. In June 2011, the FASB issued ASC Update 2011-05, “Presentation of Other Comprehensive Income” (ASC Update 2011-05). ASC Update 2011-05 requires companies to present total comprehensive income, consisting of net income and other comprehensive income, in either one continuous statement of comprehensive income or in two separate but consecutive statements. Presently, the Corporation reports total comprehensive income within its Consolidated Statement of Shareholders’ Equity and Comprehensive Income. For publicly traded entities, this standards update is effective for fiscal years beginning after December 15, 2011. For the Corporation, this standards update is effective in connection with its March 31, 2012 interim filing on Form 10-Q. In September 2011, the FASB issued ASC Update 2011-08, "Testing for Goodwill Impairment" (ASC Update 2011-08). ASC Update 2011-08 simplifies testing for goodwill impairment by permitting entities to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is greater than its carrying value. If an entity can qualitatively demonstrate that a reporting unit's fair value is more likely than not greater than its carrying value, then it would not be required to perform the quantitative two-step goodwill impairment test. This standards update is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted, including for annual and interim goodwill impairment tests performed as of a date before September 15, 2011, if an entity’s financial statements for the most recent annual or interim period have not yet been issued. The adoption of ASC Update 2011-08 is not expected to materially impact the Corporation’s financial statements.

New Accounting Standards

In May 2011, the FASB issued ASC Update 2011-04, “Amendments to Achieve Common Fair Value Measurements and Disclosure Requirements in U.S. GAAP and IFRSs” (ASC Update 2011-04). ASC Update 2011-04 amends fair value measurement and disclosure requirements in U.S. GAAP for the purpose of improving the comparability of fair value measurements presented and disclosed in financial statements prepared in accordance with U.S. GAAP and International Financial Reporting Standards (IFRS). Among the amendments in ASC Update 2011-04 are expanded disclosure requirements that require companies to quantitatively disclose inputs used in Level 3 fair value measurements and to qualitatively disclose the sensitivity of fair value measurement to changes in unobservable inputs. This standards update is effective for the first interim or annual period beginning on or after December 15, 2011. For the Corporation, this standards update is effective in connection with its March 31, 2012 interim filing on Form 10-Q. The adoption of ASC Update 2011-04 is not expected to materially impact the Corporation’s financial statements.

In June 2011, the FASB issued ASC Update 2011-05, “Presentation of Other Comprehensive Income” (ASC Update 2011-05). ASC Update 2011-05 requires companies to present total comprehensive income, consisting of net income and other comprehensive income, in either one continuous statement of comprehensive income or in two separate but consecutive statements. Presently, the Corporation reports total comprehensive income within its Consolidated Statement of Shareholders’ Equity and Comprehensive Income. For publicly traded entities, this standards update is effective for fiscal years beginning after December 15, 2011. For the Corporation, this standards update is effective in connection with its March 31, 2012 interim filing on Form 10-Q.

In September 2011, the FASB issued ASC Update 2011-08, "Testing for Goodwill Impairment" (ASC Update 2011-08). ASC Update 2011-08 simplifies testing for goodwill impairment by permitting entities to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is greater than its carrying value. If an entity can qualitatively demonstrate that a reporting unit's fair value is more likely than not greater than its carrying value, then it would not be required to perform the quantitative two-step goodwill impairment test. This standards update is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption is permitted, including for annual and interim goodwill impairment tests performed as of a date before September 15, 2011, if an entity’s financial statements for the most recent annual or interim period have not yet been issued. The adoption of ASC Update 2011-08 is not expected to materially impact the Corporation’s financial statements.