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Summary of Impact of Derivatives in Cash Flow Hedging Relationships on Statement of Operations and Statement of OCI (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Derivative [Line Items] |  |  |
Amortization Reclassified from OCI into Income (Loss) | $ 2,411 | $ 2,271 | $ 2,166
Interest Expense [Member] |  |  |
Derivative [Line Items] |  |  |
Amortization Reclassified from OCI into Income (Loss) | $ (2,411) | $ (2,271) |

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- Definition The effective portion of loss reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Period Type: | duration