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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2018
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment 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).
For 2018, 2017 and 2016, depreciation and amortization expense on property, plant and equipment of $45.9 million, $45.0 million and $43.1 million, respectively, is included in cost and expenses in the accompanying consolidated statements of income. Depreciation and amortization expense on property, plant and equipment includes amounts pertaining to assets under operating (as lessor) and capital leases (as lessee).