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Derivative Instruments - Schedule of Interest Rate Swaps (Details) - Derivatives Not Designated as Hedging Instruments | Sep. 30, 2018 USD ($)
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Tranche A |
Derivative [Line Items] |
Notional amount at inception (in thousands) | $ 300,000,000
Fixed interest rate | 2.204%
Tranche B |
Derivative [Line Items] |
Notional amount at inception (in thousands) | $ 200,000,000
Fixed interest rate | 2.212%
Tranche C |
Derivative [Line Items] |
Notional amount at inception (in thousands) | $ 400,000,000
Amortization | 5.00%
Fixed interest rate | 1.108%
Tranche D |
Derivative [Line Items] |
Notional amount at inception (in thousands) | $ 150,000,000
Fixed interest rate | 1.125%
Tranche E |
Derivative [Line Items] |
Notional amount at inception (in thousands) | $ 250,000,000
Fixed interest rate | 0.896%

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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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- Details
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