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General (Details) (Error Correction [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2012
Error Correction [Member]
Out of period adjustments [Abstract]
Pre-tax earnings	$ 0.5

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- Definition

Amount of each individual error being corrected in the correcting adjustment.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 250

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 1.N.Q3)

-URI http://asc.fasb.org/extlink&oid=26874127&loc=d3e30840-122693



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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 1

-Section N

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