XML 55 R38.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value of Derivatives and Financial Instruments (Outstanding Interest Rate Derivatives Designated as Cash Flow Hedges of Interest Rate Risk) (Details)
9 Months Ended
Sep. 30, 2018
USD ($)
Contract
Derivative  
Cash Flow Hedges Derivative Instruments at Fair Value, Net $ 300,000,000
Maximum Length of Time Hedged in Cash Flow Hedge 10 years
Designated as Hedging Instrument | Interest Rate Cap  
Derivative  
Number of Instruments | Contract 1
Derivative, Notional Amount $ 25,000,000
Designated as Hedging Instrument | Interest Rate Swap  
Derivative  
Number of Instruments | Contract 10
Derivative, Notional Amount $ 300,000,000