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Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued and Expensed (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
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Mar. 31, 2014 | Mar. 31, 2013
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued [Abstract] |  |
Unrecognized tax benefits, income tax penalties and interest accrued | $ 4.7 | $ 4.3
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense [Abstract] |  |
Unrecognized tax benefits, income tax penalties and interest expense | $ 0.4 |

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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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