Partners' Equity and Equity-Based Compensation - Unit Option Activity (Details) - Options $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding at beginning of period (in shares) | shares	362
Exercised (in shares) | shares	(4)
Forfeited (in shares) | shares	(6)
Options outstanding at end of period (in shares) | shares	352
Options exercisable (in shares) | shares	352
Weighted Average Exercise Price
Options outstanding at beginning of period (in dollars per share) | $ / shares	$ 34.49
Exercised (in dollars per share) | $ / shares	29.53
Forfeited (in dollars per share) | $ / shares	36.95
Options outstanding at end of period (in dollars per share) | $ / shares	34.50
Options exercisable (in dollars per share) | $ / shares	$ 34.50
Weighted Average Remaining Contractual Life	1 year 9 months 18 days
Aggregate Intrinsic Value | $	$ 1,703