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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2018
Property, Plant and Equipment [Abstract]  
Components of Property, Plant and Equipment
Property, plant and equipment consist of the following as of the dates indicated:
 
December 31, 
Depreciable Life
2018 2017 
Land — $11.5 $8.2 
Building and improvements 10 - 40 years 39.0 38.9 
Pipeline and equipment (1)
10 - 30 years 1,162.1 1,153.6 
Other 5 - 25 years 17.9 17.8 
1,230.5 1,218.5 
Accumulated depreciation and amortization (2)
(567.3)(526.1)
663.2 692.4 
Construction in progress 79.2 44.1 
Property, plant and equipment, net $742.4 $736.5 
(1) As of December 31, 2018 and 2017, includes cost of $365.8 million and $353.7 million, respectively, related to assets under operating leases (as lessor), which commenced in May 2017 and December 2017. As of both December 31, 2018 and 2017, includes cost of $22.8 million related to assets under capital lease (as lessee).
(2) As of December 31, 2018 and 2017, includes accumulated depreciation of $120.7 million and $104.7 million, respectively, related to assets under operating leases (as lessor), which commenced in May 2017 and December 2017. As of December 31, 2018 and 2017, includes accumulated depreciation of $4.5 million and $3.0 million, respectively, related to assets under capital lease (as lessee).