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Derivatives - Schedule of Outstanding Interest Rate Swaps (Details)
Sep. 30, 2019
USD ($)
Derivative [Line Items]  
Interest rate swap contracts, floor rate 1.00%
Designated as Hedging Instrument  
Derivative [Line Items]  
Interest rate swap contracts, floor rate 0.00%
Designated as Hedging Instrument | 1.65%  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Paid 1.65%
Designated as Hedging Instrument | 2.27%  
Derivative [Line Items]  
Notional Amount $ 1,350,000,000
Interest Rate Paid 2.27%
Designated as Hedging Instrument | 2.19%  
Derivative [Line Items]  
Notional Amount $ 1,200,000,000
Interest Rate Paid 2.19%
Designated as Hedging Instrument | 2.81%  
Derivative [Line Items]  
Notional Amount $ 600,000,000
Interest Rate Paid 2.81%
Not Designated as Hedging Instrument | 2.61%  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Paid 2.61%
Not Designated as Hedging Instrument | 1.67%  
Derivative [Line Items]  
Notional Amount $ 750,000,000
Interest Rate Received 1.67%