Employee Incentive Plans - Amounts Recognized in Consolidated Financial Statements (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Allocation
Total unit-based compensation expense	$ 5,700,000	$ 6,400,000	$ 12,300,000	$ 12,900,000
Amount of related income tax benefit recognized in net income	1,300,000	1,500,000	2,900,000	3,000,000.0
Unit-based compensation	0	400,000	2,000,000.0	2,900,000
Restricted units
Allocation
Unit-based compensation	0	400,000	2,000,000	2,900,000
Cost of unit-based compensation charged to operating expense
Allocation
Total unit-based compensation expense	1,200,000	1,700,000	2,800,000	3,400,000
Cost of unit-based compensation charged to general and administrative expense
Allocation
Total unit-based compensation expense	$ 4,500,000	$ 4,700,000	$ 9,500,000	$ 9,500,000

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 740
-Section 35
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126970579&loc=d3e23163-113944

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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