Recent Accounting Pronouncements	3 Months Ended
Mar. 31, 2012
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	Adoption of New Accounting Standards In December 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-12, Comprehensive Income (Topic 220): Presentation of Comprehensive Income. ASU 2011-12 effectively deferred only those changes in ASU 2011-05, Comprehensive Income (Topic 22): Presentation of Comprehensive Income, that relate to the presentation of reclassification adjustments out of accumulated other comprehensive income. The amendments will be temporary to allow the FASB time to redeliberate the presentation requirements for reclassifications out of accumulated other comprehensive income for annual and interim financial statements for public, private, and non-profit entities. All other requirements in ASU 2011-05 are not affected by this ASU. Effective January 1, 2012, the Company adopted the other requirements of ASU 2011-05 with the components of comprehensive income presented in a separate statement. In May 2011, the FASB issued ASU No. 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. ASU 2011-04 is intended to result in convergence between United States Generally Accepted Accounting Principles (U.S. GAAP) and International Financial Reporting Standards (IFRS) requirements for measurement of and disclosures about fair value. The amendments are not expected to have a significant impact on companies applying U.S. GAAP. Key provisions of the amendment include: a prohibition on grouping financial instruments for purposes of determining fair value, except when an entity manages market and credit risks on the basis of the entity’s net exposure to the group; an extension of the prohibition against the use of a blockage factor to all fair value measurements (that prohibition currently applies only to financial instruments with quoted prices in active markets); and a requirement that for recurring Level 3 fair value measurements, entities disclose quantitative information about unobservable inputs, a description of the valuation process used, and qualitative details about the sensitivity of the measurements. In addition, for items not carried at fair value but for which fair value is disclosed, entities will be required to disclose the level within the fair value hierarchy that applies to the fair value measurement disclosed. The Company adopted this ASU effective January 1, 2012 with no impact on the Company’s fair value measurements, financial condition, results of operations, or cash flows. In April 2011, the FASB issued ASU No. 2011-03, Transfers and Servicing (Topic 860): Reconsideration of Effective Control for Repurchase Agreements. ASU 2011-03 amends the sale accounting requirement concerning a transferor’s ability to repurchase transferred financial assets even in the event of default by the transferee, which typically is facilitated in a repurchase agreement by the presence of a collateral maintenance provision. Specifically, the level of cash collateral received by a transferor will no longer be relevant in determining whether a repurchase agreement constitutes a sale. As a result of this amendment, more repurchase agreements will be treated as secured financings rather than sales. The Company adopted this ASU effective January 1, 2012 for new transfers and existing transactions that are modified. Because essentially all repurchase agreements entered into by the Company have historically been deemed to constitute secured financing transactions, this amendment had no impact on the Company’s characterization of such transactions and therefore did not have any impact on the Company’s financial condition, results of operation, or cash flows.

Adoption of New Accounting Standards

In December 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-12, Comprehensive Income (Topic 220): Presentation of Comprehensive Income. ASU 2011-12 effectively deferred only those changes in ASU 2011-05, Comprehensive Income (Topic 22): Presentation of Comprehensive Income, that relate to the presentation of reclassification adjustments out of accumulated other comprehensive income. The amendments will be temporary to allow the FASB time to redeliberate the presentation requirements for reclassifications out of accumulated other comprehensive income for annual and interim financial statements for public, private, and non-profit entities. All other requirements in ASU 2011-05 are not affected by this ASU. Effective January 1, 2012, the Company adopted the other requirements of ASU 2011-05 with the components of comprehensive income presented in a separate statement.

In May 2011, the FASB issued ASU No. 2011-04, Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. ASU 2011-04 is intended to result in convergence between United States Generally Accepted Accounting Principles (U.S. GAAP) and International Financial Reporting Standards (IFRS) requirements for measurement of and disclosures about fair value. The amendments are not expected to have a significant impact on companies applying U.S. GAAP. Key provisions of the amendment include: a prohibition on grouping financial instruments for purposes of determining fair value, except when an entity manages market and credit risks on the basis of the entity’s net exposure to the group; an extension of the prohibition against the use of a blockage factor to all fair value measurements (that prohibition currently applies only to financial instruments with quoted prices in active markets); and a requirement that for recurring Level 3 fair value measurements, entities disclose quantitative information about unobservable inputs, a description of the valuation process used, and qualitative details about the sensitivity of the measurements. In addition, for items not carried at fair value but for which fair value is disclosed, entities will be required to disclose the level within the fair value hierarchy that applies to the fair value measurement disclosed. The Company adopted this ASU effective January 1, 2012 with no impact on the Company’s fair value measurements, financial condition, results of operations, or cash flows.

In April 2011, the FASB issued ASU No. 2011-03, Transfers and Servicing (Topic 860): Reconsideration of Effective Control for Repurchase Agreements. ASU 2011-03 amends the sale accounting requirement concerning a transferor’s ability to repurchase transferred financial assets even in the event of default by the transferee, which typically is facilitated in a repurchase agreement by the presence of a collateral maintenance provision. Specifically, the level of cash collateral received by a transferor will no longer be relevant in determining whether a repurchase agreement constitutes a sale. As a result of this amendment, more repurchase agreements will be treated as secured financings rather than sales. The Company adopted this ASU effective January 1, 2012 for new transfers and existing transactions that are modified. Because essentially all repurchase agreements entered into by the Company have historically been deemed to constitute secured financing transactions, this amendment had no impact on the Company’s characterization of such transactions and therefore did not have any impact on the Company’s financial condition, results of operation, or cash flows.