Earnings Per Share - Narrative (Details)	1 Months Ended	12 Months Ended
Feb. 28, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Stock Dividend Declaration Date	2/14/2013
Shares Issued For Each Share Outstanding	5.37
Total Shares Issued Pursuant To Stock Dividend	827,555us-gaap_StockDividendsShares	828,000us-gaap_StockDividendsShares
Stock Dividend Issue Date	Feb. 20, 2013

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Stock Split

-URI http://asc.fasb.org/extlink&oid=6525746

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 4

-Subparagraph (SAB TOPIC 4.C)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770

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Period Type:	duration