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Contingency Reserves (Tables)
 3 Months Ended
Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Loss Contingencies by Contingency [Table Text Block]
LP maintains reserves for various contingent liabilities as follows: 
Dollar amounts in millions
March 31, 2014
 
December 31, 2013
Environmental reserves
$
14.5

 
$
14.9

Other reserves
0.3

 
0.4

Total contingency reserves
14.8

 
15.3

Current portion of contingency reserves
(2.0
)
 
(2.0
)
Long-term portion of contingency reserves
$
12.8

 
$
13.3