Share and Unit-based Plans - Schedule of LTIP Grants (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
LTIP units
Share and unit-based plans [Line Items]
Granted (in shares)	552,866	343,431	569,136
Granted (in dollars per share)	$ 26.59	$ 32.40	$ 51.78
January 1, 2018 | Service-based | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)			65,466
Granted (in dollars per share)			$ 65.68
January 1, 2018 | Market-indexed | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)			291,326
Granted (in dollars per share)			$ 44.28
January 29, 2018 | Service-based | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)			1,893
Granted (in dollars per share)			$ 66.02
January 29, 2018 | Service-based | Second vesting period
Share and unit-based plans [Line Items]
Granted (in shares)			13,632
Granted (in dollars per share)			$ 66.02
January 29, 2018 | Market-indexed | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)			7,775
Granted (in dollars per share)			$ 48.23
March 2, 2018 | Service-based | Third vesting period
Share and unit-based plans [Line Items]
Granted (in shares)			99,407
Granted (in dollars per share)			$ 59.04
April 26, 2018 | Service-based | Fourth vesting period
Share and unit-based plans [Line Items]
Granted (in shares)			89,637
Granted (in dollars per share)			$ 55.78
January 1, 2019 | Service-based | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)		81,732
Granted (in dollars per share)		$ 43.28
January 1, 2019 | Market-indexed | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)		250,852
Granted (in dollars per share)		$ 29.25
September 1, 2019 | Service-based | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)		4,393
Granted (in dollars per share)		$ 28.53
September 1, 2019 | Market-indexed | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)		6,454
Granted (in dollars per share)		$ 19.42
January 1, 2020 | Service-based | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)	154,158
Granted (in dollars per share)	$ 26.92
January 1, 2020 | Market-indexed | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)	321,940
Granted (in dollars per share)	$ 27.80
March 1, 2020 | Service-based | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)	39,176
Granted (in dollars per share)	$ 20.42
March 1, 2020 | Market-indexed | First vesting period
Share and unit-based plans [Line Items]
Granted (in shares)	37,592
Granted (in dollars per share)	$ 21.28