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Recently Issued Accounting Standards	3 Months Ended
	Mar. 31, 2013
Text Block [Abstract]
Recently Issued Accounting Standards	15. Recently Issued Accounting Standards In February 2013, the Financial Accounting Standards Board issued Accounting Standard Update No. 2013-02 “Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income” (ASU No. 2013-02), which is an update for Accounting Standards Codification Topic No.220 “Comprehensive Income”. The update improves the reporting of reclassifications out of accumulated other comprehensive income. The guidance is effective for the Company’s interim and annual reporting periods beginning January 1, 2013, and applied prospectively. There was no significant impact to the Company’s Consolidated Financial Statements from the adopted provisions of ASU No. 2013-02.

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