Incentive Compensation - Summary of Incentive Compensation Expense (Details) - 2015 LTIP - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cash	$ 5,593	$ 9,301	$ 4,373
Incentive compensation expense	26,077	39,435	37,418
Restricted common and subordinated units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	10,751	13,624	13,476
Restricted Performance Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Equity-based compensation	7,386	14,188	17,367
Board of Directors | Common Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Incentive compensation expense	$ 2,347	$ 2,322	$ 2,202