Property, Plant and Equipment, Net - Schedule of Components (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment, Net
Property, plant and equipment, net	$ 325,970	$ 334,853
Property, plant and equipment in service, net
Property, Plant and Equipment, Net
Property, plant, and equipment, gross	400,220	395,814
Accumulated depreciation	(166,300)	(158,824)
Property, plant and equipment, net	233,920	236,990
Land and land improvements
Property, Plant and Equipment, Net
Property, plant, and equipment, gross	17,516	17,608
Buildings and leasehold improvements
Property, Plant and Equipment, Net
Property, plant, and equipment, gross	138,526	138,126
Furniture and equipment
Property, Plant and Equipment, Net
Property, plant, and equipment, gross	244,178	240,080
Construction in progress
Property, Plant and Equipment, Net
Property, plant and equipment, net	$ 92,050	$ 97,863