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Fair Value Measurements (Narrative) (Details) | 6 Months Ended
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Sep. 30, 2017 USD ($)
Fair Value Measurements (Textual) [Abstract] |
Fair Value, Assets, Level 1, Level 2, or Level 3 Transfers, Amount | $ 0
Impairment charges on assets held for sale or held and used | $ 0
Typical period a loan is held for sale | 45 days

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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