v3.20.1

Long-Term Incentive Plan (Narrative) (Details) shares in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 shares
Long Term Incentive Plan [Line Items] |
Board of Director Deferred Award Days to Payment | 60 days
Limited partners' capital account, units issued (in units) | 11.9
Limited partner unitholders, units remaining available (in shares) | 1.6
Performance Shares [Member] |
Long Term Incentive Plan [Line Items] |
Equity Based Compensation, Award Payout Percentage, Minimum | 0.00%
Equity Based Compensation, Award Payout Percentage, Maximum | 200.00%
Equity Based Compensation Award Payout Fluctuation Of Award Market | 50.00%
Share-Based Compensation Arrangement By Share-Based Payment Award, Award Forfeiture Period | 2 years
Minimum [Member] |
Long Term Incentive Plan [Line Items] |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years
Maximum [Member] |
Long Term Incentive Plan [Line Items] |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years

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- Definition Equity Based Compensation, Award Payout Percentage, Maximum + References No definition available. + Details
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- Definition Long Term Incentive Plan [Line Items] + References No definition available. + Details
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- Definition The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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