Derivative Financial Instruments - Summary of Information Related to Number of and Notional Amount of Interest Rate Related Derivative Instruments (Details) - Designated as Hedging Instrument - Interest Rate Swaps and Collars	Sep. 30, 2019 USD ($) DerivativeInstrument	Dec. 31, 2018 USD ($) DerivativeInstrument
Derivative [Line Items]
Number of Instruments | DerivativeInstrument	10	12
Notional Amount | $	$ 200,000,000	$ 210,000,000