Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Equity-Based Compensation (Details) - Long Term Incentive Plan (LTIP) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional number of shares reserved for issuance (shares)			2,793,360
Restricted Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
Units granted (shares)			16,170
Weighted-average grant date fair value (in usd per share)			$ 16.69
Equity-based compensation expense	$ 0.1	$ 0.1	$ 0.1	$ 0.2
Unrecognized compensation cost	$ 0.2		$ 0.2
Weighted average recognition period			7 months 6 days