| Schedule of Goodwill [Table Text Block] |
Changes in the carrying amount of goodwill by segment were as follows: | | | | | | | | | | | | | | | | | | Storage | | Pipeline | | Fuels Marketing | | Total | | (Thousands of Dollars) | Balances as of January 1, 2012 | | | | | | | | Goodwill | $ | 618,614 |
| | $ | 174,848 |
| | $ | 53,255 |
| | $ | 846,717 |
| Accumulated impairment losses | — |
| | — |
| | — |
| | — |
| Net goodwill | 618,614 |
| | 174,848 |
| | 53,255 |
| | 846,717 |
| TexStar Asset Acquisition preliminary purchase price allocation | — |
| | 127,896 |
| | — |
| | 127,896 |
| Asphalt Operations impairment | — |
| | — |
| | (22,132 | ) | | (22,132 | ) | Terminal sales (a) | (3,764 | ) | | — |
| | — |
| | (3,764 | ) | Other (b) | 2,307 |
| | — |
| | — |
| | 2,307 |
| Balances as of December 31, 2012 | | | | | | | | Goodwill | 617,157 |
| | 302,744 |
| | 53,255 |
| | 973,156 |
| Accumulated impairment losses | — |
| | — |
| | (22,132 | ) | | (22,132 | ) | Net goodwill | 617,157 |
| | 302,744 |
| | 31,123 |
| | 951,024 |
| TexStar Asset Acquisition final purchase price allocation | — |
| | 3,463 |
| | — |
| | 3,463 |
| Impairments | (331,913 | ) | | — |
| | — |
| | (331,913 | ) | Other (b) | (5,145 | ) | | — |
| | — |
| | (5,145 | ) | Balances as of December 31, 2013 | | | | | | | | Goodwill | 612,012 |
| | 306,207 |
| | 53,255 |
| | 971,474 |
| Accumulated impairment losses | (331,913 | ) | | — |
| | (22,132 | ) | | (354,045 | ) | Net goodwill | $ | 280,099 |
| | $ | 306,207 |
| | $ | 31,123 |
| | $ | 617,429 |
|
| | (a) | Goodwill associated with five terminals in Georgia and Alabama sold on April 16, 2012. |
| | (b) | Includes purchase price adjustments related to acquisitions still subject to the measurement period that ends at the earlier of 12 months from the acquisition date or when information becomes available. Also includes foreign currency translation adjustments. |
|