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Summary of Significant Accounting Policies (Detail Textuals 1) (USD $) | 12 Months Ended
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Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2012
Accounting Policies [Abstract] |  |  |
Amount of unearned interest, discounts and allowance for credit losses | $ 155,001,000 | $ 145,896,000 |
Average dealer discount associated with new volume | 8.44% | 8.54% | 9.23%
Sales of NDS to the Company's consolidated revenues | less than 1% |  |
Cash paid for income taxes | 10,837,000 | 11,273,000 | 13,764,000
Cash paid for interest | $ 5,673,000 | $ 5,043,000 | $ 4,878,000

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- Definition Represents the revenue of wholly owned subsidiary as compared to the consolidated revenue of holding company. + References No definition available. + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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- Definition The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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