Recent Accounting Literature and Changes in Accounting Principles (Details)	12 Months Ended
	Dec. 31, 2011
Accounting Standards Update 2011-04 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
FASB issued Accounting Standards Update	ASU 2011-04
Description of change	Changes the wording used to describe many of the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements to ensure consistency between U.S. GAAP and IFRS. ASU 2011-04 also expands the disclosures for fair value measurements that are estimated using significant unobservable Level 3 inputs. This new guidance is to be applied prospectively, and is effective for interim and annual periods beginning after December 15, 2011. In December 2011, the FASB issued ASU No. 2011-12 which defers the effective date for amendments to the presentation of reclassifications of items out of accumulated other comprehensive income in ASU 2011-05. We do not expect the adoption of ASU 2011-04 to have a material impact on our financial position, results of operations or cash flows.
Accounting Standards Update 2011-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
FASB issued Accounting Standards Update	ASU 2011-05
Description of change	Eliminates the option to report other comprehensive income and its components in the statement of changes in equity. ASU 2011-05 requires that all non-owner changes in stockholders' equity be presented in either a single continuous statement of comprehensive income or in two separate but consecutive statements. This new guidance is to be applied retrospectively, and is effective for interim and annual periods beginning after December 15, 2011. We do not expect the adoption of ASU 2011-05 to have a material impact on our financial position, results of operations or cash flows.
Accounting Standards Update 2011-08 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
FASB issued Accounting Standards Update	ASU 2011-08
Description of change	Permits an entity to first assess qualitative factors to determine whether it is more likely than not a likelihood of more than 50 percent that the fair value of a reporting unit is less than its carrying amount. After assessing qualitative factors, if an entity determines that it is not more likely than not that the fair value of the reporting unit is less than its carrying amount, no further testing is necessary. If an entity determines that it is more likely than not that the fair value of the reporting unit is less than its carrying value, then the traditional two-step goodwill impairment test must be performed. While ASU 2011-08 is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011, early adoption is permitted. The Company performed its annual impairment test during the fourth quarter ending December 31, 2011. The Company adopted ASU 2011-08 during 2011 with no material impact on our financial position, results of operations or cash flows.)