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Derivative Instruments, Hedging Activities and Fair Value (Details 4) (Designated as hedging instrument, USD $) In Thousands, unless otherwise specified | Mar. 31, 2014
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Cross Currency Interest Rate Swap Maturing 2018 [Member] |
Derivatives Designated as Hedging Instruments |
Contractual Amount | $ 250,000
Cross Currency Interest Rate Swap Maturing 2020 [Member] |
Derivatives Designated as Hedging Instruments |
Contractual Amount | 220,000
Cross Currency Interest Rate Swap Maturing 2016 through 2017 [Member] |
Derivatives Designated as Hedging Instruments |
Contractual Amount | $ 10,200

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration