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Equity-based Awards, Unit Option Awards (Details) - Unit Option Awards [Member] - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2015
Options outstanding, weighted-average strike price [Roll Forward] |  |
Total intrinsic value of unit option awards exercised during period | $ 2.2 | $ 19.6
Cash received from EPCO in connection with the exercise of unit option awards | 1.2 | 11.3
Unit option award-related cash reimbursements to EPCO | $ 2.2 | $ 19.6

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- Definition The cash received from private company affiliate in connection with the exercise of unit option awards. + References No definition available. + Details
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- Definition Reimbursement to private company affiliate for the cash difference between the strike price paid by the employee and the actual price paid for the units issued to the employee. + References No definition available. + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Details
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