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Derivatives - Schedule of Outstanding Interest Rate Swaps (Details)
Jun. 30, 2017
USD ($)
Derivative [Line Items]  
Interest rate swap contracts, floor rate 1.00%
Designated as Hedging Instrument [Member]  
Derivative [Line Items]  
Interest rate swap contracts, floor rate 0.00%
Designated as Hedging Instrument [Member] | 1.48% [Member]  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Paid 1.48%
Designated as Hedging Instrument [Member] | 1.15% [Member]  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Paid 1.15%
Designated as Hedging Instrument [Member] | 1.65% [Member]  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Paid 1.65%
Designated as Hedging Instrument [Member] | 2.08% [Member]  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Paid 2.08%
Not Designated as Hedging Instrument [Member] | 2.19% [Member]  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Paid 2.19%
Not Designated as Hedging Instrument [Member] | 1.18% [Member]  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Received 1.18%
Not Designated as Hedging Instrument [Member] | 2.61% [Member]  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Paid 2.61%
Not Designated as Hedging Instrument [Member] | 1.67% [Member]  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Received 1.67%