Equity - Additional Information (Details) - shares	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020
Partnership exchangeable units
Stockholders Equity [Line Items]
BKW reorganization into Partnership (in shares)	622,068	2,494,854	178,046	41,807,254	45,325	141,190	3,294,968