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Derivative Instruments - Derivative Narrative (Details) (Interest Rate Swap [Member], USD $) In Millions, unless otherwise specified | Mar. 31, 2012 Not Designated as Hedging Instrument [Member] | Mar. 31, 2013 Senior Secured Term Loan A [Member] Cash Flow Hedging [Member] October 2017 Maturity [Member] | Mar. 31, 2013 Senior Secured Term Loan B [Member] Cash Flow Hedging [Member] October 2019 Maturity [Member]
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Derivative [Line Items] |  |  |
Notional Amount of Cash Flow Hedge Instruments |  | $ 175.0 | $ 150.0
Derivative, Fixed Interest Rate | 1.80% | 0.74% | 2.05%
Notional Amount of Other Derivatives Not Designated as Hedging Instruments | $ 100.0 |  |

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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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- Details
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- Definition Aggregate notional amount of all derivatives designated as cash flow hedging instruments. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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- Definition Aggregate notional amount of all derivatives not designated as a hedging instrument. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Notional Amount -URI http://asc.fasb.org/extlink&oid=6519104 + Details
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