Partners' Capital and Distributions (Narrative) (Details) $ in Millions |
9 Months Ended |
|---|---|
|
Sep. 30, 2019
USD ($)
shares
| |
| Partners' Capital [Abstract] | |
| Amount Authorized Under Equity Distribution Agreement | $ | $ 750.0 |
| Equity Distribution Agreement, Units Issued (in shares) | shares | 0 |