2.4.0.84081 - Disclosure - Derivative Instruments (Details 2)truefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalseD2013Q2YTD_InterestRateSwapMember_NondesignatedMemberhttp://www.sec.gov/CIK0001465885duration2013-01-01T00:00:002013-06-30T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170$2false USDfalsefalseD2012ITD_InterestRateSwapMember_NondesignatedMemberhttp://www.sec.gov/CIK0001465885duration2012-05-16T00:00:002012-12-31T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170$1true 3us-gaap_DerivativeLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Average fixed pay rate and average maturity for the Company's interest rate swaps2false 4invest_DerivativeNotionalAmountinvest_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse41232030004123203USD$falsetruefalse2truefalsefalse41818000004181800USD$falsetruefalsexbrli:monetaryItemTypemonetaryAggregate notional amount specified by the derivative(s). 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