Long-Term Incentive Plan (Changes in Non-Vested Unit Awards) (Details) - $ / shares	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Number of Unit Awards
Beginning balance (in shares)	916,439
Units granted during 2021 (in shares)	617,080
Units vested during 2021 (in shares)	(345,785)
Units forfeited during 2021 (in shares)	(58,643)
Ending balance (in shares)	1,129,091	916,439
Weighted Average Fair Value
Beginning balance (in dollars per share)	$ 48.67
Units granted during 2021 (in dollars per share)	48.75
Units vested during 2021 (in dollars per share)	61.16
Units forfeited during 2021 (in dollars per share)	47.02
Ending balance (in dollars per share)	$ 44.97	$ 48.67
Performance-Based Awards
Number of Unit Awards
Beginning balance (in shares)	445,925
Units granted during 2021 (in shares)	296,236	281,823	189,632
Units vested during 2021 (in shares)	(168,939)
Units forfeited during 2021 (in shares)	(28,619)
Ending balance (in shares)	544,603	445,925
Weighted Average Fair Value
Beginning balance (in dollars per share)	$ 48.66
Units granted during 2021 (in dollars per share)	48.76	$ 40.85	$ 61.16
Units vested during 2021 (in dollars per share)	61.16
Units forfeited during 2021 (in dollars per share)	46.92
Ending balance (in dollars per share)	$ 44.93	$ 48.66
Time-Based Awards
Number of Unit Awards
Beginning balance (in shares)	470,514
Units granted during 2021 (in shares)	320,844	301,873	198,450
Units vested during 2021 (in shares)	(176,846)
Units forfeited during 2021 (in shares)	(30,024)
Ending balance (in shares)	584,488	470,514
Weighted Average Fair Value
Beginning balance (in dollars per share)	$ 48.67
Units granted during 2021 (in dollars per share)	48.75	$ 40.99	$ 61.18
Units vested during 2021 (in dollars per share)	61.15
Units forfeited during 2021 (in dollars per share)	47.11
Ending balance (in dollars per share)	$ 45.02	$ 48.67

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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

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

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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