Financial Risk Management Activities - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments Gain Loss [Line Items]
Deferred income in accumulated other comprehensive income	$ 400,000
Deferred income will be reclassified into earnings during the next 12 months	400,000
Interest Rate Swap
Derivative Instruments Gain Loss [Line Items]
Outstanding derivatives designated as cash flow hedges	$ 0	$ 0