Derivative Instruments and Hedging Activities - Summary of Effect of Swaps on Company's Financial Statements (Details) - Interest Rate Swaps - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Total Gain or (Loss) Recognized in AOCI	$ (3,362)	$ (1,184)
Amount of (Gain) or Loss Reclassified from AOCI into Income	$ (387)	$ (672)