Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001545654 (http://www.sec.gov/CIK)

Property, Plant and Equipment [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Property, Plant and Equipment [Abstract]
Schedule of Property	Property on the consolidated balance sheets includes the following (in millions):   December 31,   2016   2015 Buildings $ 566.5   $ 571.3 Land 622.6   578.5 Machinery and equipment 254.0   242.6 Asphalt plants and quarry assets 78.2   77.1 Water, power and sewer systems 156.4   145.6 Other property improvements 65.9   86.8 Vessel 11.3   11.3    Subtotal 1,754.9   1,713.2 Accumulated depreciation (523.3 )   (443.8 )    Property - net $ 1,231.6   $ 1,269.4