Consolidated Statement of Partners' Capital Statement - USD ($) $ in Thousands	Total	Common Unitholders	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2018	$ 2,643,434	$ 2,763,925	$ (120,491)
Comprehensive income:
Net income	207,663	207,663
Total other comprehensive income (loss)	(2,446)		(2,446)
Comprehensive income	205,217	207,663	(2,446)
Distributions	(227,832)	(227,832)
Equity-based incentive compensation expense	4,914	4,914
Issuance of common units in settlement of equity-based incentive plan awards	480	480
Payments associated with settlement of equity-based incentive compensation	(9,764)	(9,764)
Other	(194)	(194)
Ending balance at Mar. 31, 2019	2,616,255	2,739,192	(122,937)
Beginning balance at Dec. 31, 2019	2,715,028	2,877,105	(162,077)
Comprehensive income:
Net income	287,564	287,564
Total other comprehensive income (loss)	(7,694)		(7,694)
Comprehensive income	279,870	287,564	(7,694)
Distributions	(234,774)	(234,774)
Equity-based incentive compensation expense	155	155
Repurchases of common units	(201,982)	(201,982)
Issuance of common units in settlement of equity-based incentive plan awards	600	600
Payments associated with settlement of equity-based incentive compensation	(14,700)	(14,700)
Other	(220)	(220)
Ending balance at Mar. 31, 2020	$ 2,543,977	$ 2,713,748	$ (169,771)